docs(tournament): spec

Added tournament spec to docs
feat: add coordinator startup validation and K8s pod watch
2026-05-13 13:32:52 +02:00 · 2026-05-13 09:55:38 +02:00 · 2026-05-13 07:21:09 +00:00 · 2026-05-13 09:03:21 +02:00 · 2026-05-12 22:21:53 +00:00 · 2026-05-13 00:02:53 +02:00
48 changed files with 2134 additions and 83 deletions
@@ -129,20 +129,20 @@
 - `modules/account/src/main/scala/de/nowchess/account/resource/OfficialChallengeResource.scala` — class OfficialChallengeResource, function challengeWithDifficulty
 - `modules/account/src/main/scala/de/nowchess/account/service/AccountService.scala`
  - class AccountService
+  - function initializeMetrics
  - function register
  - function login
  - function findByUsername
  - function findById
-  - function createBotAccount
-  - _...10 more_
+  - _...11 more_
 - `modules/account/src/main/scala/de/nowchess/account/service/ChallengeService.scala`
  - class ChallengeService
+  - function initializeMetrics
  - function create
  - function accept
  - function decline
  - function cancel
-  - function findById
-  - _...2 more_
+  - _...3 more_
 - `modules/account/src/main/scala/de/nowchess/account/service/EventPublisher.scala`
  - class EventPublisher
  - function publishGameStart
@@ -262,6 +262,7 @@
 - `modules/coordinator/src/main/scala/de/nowchess/coordinator/service/CacheEvictionManager.scala`
  - class CacheEvictionManager
  - function setRedisPrefix
+  - function initializeMetrics
  - function evictStaleGames
 - `modules/coordinator/src/main/scala/de/nowchess/coordinator/service/FailoverService.scala`
  - class FailoverService
@@ -270,6 +271,7 @@
 - `modules/coordinator/src/main/scala/de/nowchess/coordinator/service/HealthMonitor.scala`
  - class HealthMonitor
  - function setRedisPrefix
+  - function initializeMetrics
  - function checkInstanceHealth
  - function watchK8sPods
 - `modules/coordinator/src/main/scala/de/nowchess/coordinator/service/InstanceRegistry.scala`
@@ -569,7 +571,10 @@
  - function clear
 - `modules/official-bots/src/main/scala/de/nowchess/bot/resource/OfficialBotChallengeResource.scala` — class OfficialBotChallengeResource, function challengeWithDifficulty
 - `modules/official-bots/src/main/scala/de/nowchess/bot/service/DifficultyMapper.scala` — class DifficultyMapper, function fromElo
- `modules/official-bots/src/main/scala/de/nowchess/bot/service/OfficialBotService.scala` — class OfficialBotService, function onStart
+- `modules/official-bots/src/main/scala/de/nowchess/bot/service/OfficialBotService.scala`
+  - class OfficialBotService
+  - function initializeMetrics
+  - function onStart
 - `modules/official-bots/src/main/scala/de/nowchess/bot/util/PolyglotBook.scala` — function probe, function select
 - `modules/official-bots/src/main/scala/de/nowchess/bot/util/PolyglotHash.scala` — class PolyglotHash, function hash
 - `modules/official-bots/src/main/scala/de/nowchess/bot/util/ZobristHash.scala`
@@ -611,12 +616,16 @@
  - function getGame
  - function getRunning
  - function getHistory
- `modules/store/src/main/scala/de/nowchess/store/service/GameWritebackService.scala` — class GameWritebackService, function writeBack
+- `modules/store/src/main/scala/de/nowchess/store/service/GameWritebackService.scala`
+  - class GameWritebackService
+  - function initializeMetrics
+  - function writeBack
 - `modules/ws/src/main/scala/de/nowchess/ws/config/JacksonConfig.scala` — class JacksonConfig, function customize
 - `modules/ws/src/main/scala/de/nowchess/ws/config/NativeReflectionConfig.scala` — class NativeReflectionConfig
 - `modules/ws/src/main/scala/de/nowchess/ws/config/RedisConfig.scala` — class RedisConfig
 - `modules/ws/src/main/scala/de/nowchess/ws/resource/GameWebSocketResource.scala`
  - class GameWebSocketResource
+  - function initializeMetrics
  - function onOpen
  - function onTextMessage
  - function onClose
@@ -73,20 +73,20 @@
 - `modules/account/src/main/scala/de/nowchess/account/resource/OfficialChallengeResource.scala` — class OfficialChallengeResource, function challengeWithDifficulty
 - `modules/account/src/main/scala/de/nowchess/account/service/AccountService.scala`
  - class AccountService
+  - function initializeMetrics
  - function register
  - function login
  - function findByUsername
  - function findById
-  - function createBotAccount
-  - _...10 more_
+  - _...11 more_
 - `modules/account/src/main/scala/de/nowchess/account/service/ChallengeService.scala`
  - class ChallengeService
+  - function initializeMetrics
  - function create
  - function accept
  - function decline
  - function cancel
-  - function findById
-  - _...2 more_
+  - _...3 more_
 - `modules/account/src/main/scala/de/nowchess/account/service/EventPublisher.scala`
  - class EventPublisher
  - function publishGameStart
@@ -206,6 +206,7 @@
 - `modules/coordinator/src/main/scala/de/nowchess/coordinator/service/CacheEvictionManager.scala`
  - class CacheEvictionManager
  - function setRedisPrefix
+  - function initializeMetrics
  - function evictStaleGames
 - `modules/coordinator/src/main/scala/de/nowchess/coordinator/service/FailoverService.scala`
  - class FailoverService
@@ -214,6 +215,7 @@
 - `modules/coordinator/src/main/scala/de/nowchess/coordinator/service/HealthMonitor.scala`
  - class HealthMonitor
  - function setRedisPrefix
+  - function initializeMetrics
  - function checkInstanceHealth
  - function watchK8sPods
 - `modules/coordinator/src/main/scala/de/nowchess/coordinator/service/InstanceRegistry.scala`
@@ -513,7 +515,10 @@
  - function clear
 - `modules/official-bots/src/main/scala/de/nowchess/bot/resource/OfficialBotChallengeResource.scala` — class OfficialBotChallengeResource, function challengeWithDifficulty
 - `modules/official-bots/src/main/scala/de/nowchess/bot/service/DifficultyMapper.scala` — class DifficultyMapper, function fromElo
- `modules/official-bots/src/main/scala/de/nowchess/bot/service/OfficialBotService.scala` — class OfficialBotService, function onStart
+- `modules/official-bots/src/main/scala/de/nowchess/bot/service/OfficialBotService.scala`
+  - class OfficialBotService
+  - function initializeMetrics
+  - function onStart
 - `modules/official-bots/src/main/scala/de/nowchess/bot/util/PolyglotBook.scala` — function probe, function select
 - `modules/official-bots/src/main/scala/de/nowchess/bot/util/PolyglotHash.scala` — class PolyglotHash, function hash
 - `modules/official-bots/src/main/scala/de/nowchess/bot/util/ZobristHash.scala`
@@ -555,12 +560,16 @@
  - function getGame
  - function getRunning
  - function getHistory
- `modules/store/src/main/scala/de/nowchess/store/service/GameWritebackService.scala` — class GameWritebackService, function writeBack
+- `modules/store/src/main/scala/de/nowchess/store/service/GameWritebackService.scala`
+  - class GameWritebackService
+  - function initializeMetrics
+  - function writeBack
 - `modules/ws/src/main/scala/de/nowchess/ws/config/JacksonConfig.scala` — class JacksonConfig, function customize
 - `modules/ws/src/main/scala/de/nowchess/ws/config/NativeReflectionConfig.scala` — class NativeReflectionConfig
 - `modules/ws/src/main/scala/de/nowchess/ws/config/RedisConfig.scala` — class RedisConfig
 - `modules/ws/src/main/scala/de/nowchess/ws/resource/GameWebSocketResource.scala`
  - class GameWebSocketResource
+  - function initializeMetrics
  - function onOpen
  - function onTextMessage
  - function onClose
@@ -0,0 +1,313 @@
+# NowChess Tournament API
+
+Swiss-system bot tournaments. Bots are paired by score each round; all bots play every round (no eliminations). Game moves flow through the existing board and bot endpoints — the tournament module only orchestrates pairings, standings, and lifecycle.
+
+---
+
+## Base path
+
+```
+/api/tournament
+```
+
+Routing: `/api/tournament` → `nowchess-tournament-active:8086`
+
+---
+
+## Authentication
+
+All endpoints require a valid JWT (`Authorization: Bearer <token>`).  
+Bot-facing streaming endpoints additionally require the token's subject to match the registered `botId`.
+
+---
+
+## Data models
+
+### Tournament
+
+```json
+{
+  "id": "t7kXq2",
+  "name": "Friday Night Bots",
+  "status": "created | started | finished",
+  "rounds": 5,
+  "currentRound": 2,
+  "timeControl": {
+    "limitSeconds": 300,
+    "incrementSeconds": 3
+  },
+  "createdBy": "userId",
+  "createdAt": "2026-05-13T18:00:00Z",
+  "startedAt": "2026-05-13T18:05:00Z",
+  "finishedAt": null
+}
+```
+
+### Standing
+
+```json
+{
+  "rank": 1,
+  "botId": "bot_abc",
+  "botName": "StockfishClone",
+  "points": 3.5,
+  "wins": 3,
+  "draws": 1,
+  "losses": 0,
+  "buchholz": 9.0
+}
+```
+
+Tiebreaker: Buchholz score (sum of opponents' points).
+
+### Pairing
+
+```json
+{
+  "round": 2,
+  "whiteBot": "bot_abc",
+  "blackBot": "bot_xyz",
+  "gameId": "j0nPtcjl",
+  "result": "white | black | draw | ongoing"
+}
+```
+
+### TournamentEvent (SSE)
+
+```json
+{ "type": "tournamentStarted", "tournamentId": "t7kXq2" }
+{ "type": "roundStarted",      "tournamentId": "t7kXq2", "round": 2 }
+{ "type": "pairingReady",      "tournamentId": "t7kXq2", "round": 2, "gameId": "j0nPtcjl", "color": "white" }
+{ "type": "roundFinished",     "tournamentId": "t7kXq2", "round": 2 }
+{ "type": "tournamentFinished","tournamentId": "t7kXq2" }
+```
+
+---
+
+## Endpoints
+
+### Tournament lifecycle
+
+#### Create tournament
+
+```
+POST /api/tournament
+```
+
+Body:
+
+```json
+{
+  "name": "Friday Night Bots",
+  "rounds": 5,
+  "timeControl": {
+    "limitSeconds": 300,
+    "incrementSeconds": 3
+  }
+}
+```
+
+Response `201 Created`:
+
+```json
+{ "id": "t7kXq2" }
+```
+
+The creator becomes the tournament director. Only the director can start and delete the tournament.
+
+---
+
+#### Get tournament
+
+```
+GET /api/tournament/{tournamentId}
+```
+
+Response `200 OK`: `Tournament` object.
+
+---
+
+#### List tournaments
+
+```
+GET /api/tournament
+```
+
+Query params:
+
+| Param    | Type                            | Default   |
+|----------|---------------------------------|-----------|
+| `status` | `created\|started\|finished`    | (all)     |
+| `limit`  | integer (max 50)                | 20        |
+| `offset` | integer                         | 0         |
+
+Response `200 OK`:
+
+```json
+{
+  "tournaments": [ /* Tournament[] */ ],
+  "total": 42
+}
+```
+
+---
+
+#### Start tournament
+
+```
+POST /api/tournament/{tournamentId}/start
+```
+
+Requires at least 2 registered bots. Computes round 1 pairings (random for round 1; score-based from round 2). Creates one game per pairing via `POST /api/board/game`.
+
+Response `200 OK`: updated `Tournament` object.
+
+---
+
+#### Delete tournament
+
+```
+DELETE /api/tournament/{tournamentId}
+```
+
+Only allowed while `status == "created"`. Response `204 No Content`.
+
+---
+
+### Bot registration
+
+#### Register bot
+
+```
+POST /api/tournament/{tournamentId}/bots
+```
+
+Registers a bot for the tournament. Must be called before the tournament starts.  
+The token subject must match the bot being registered.
+
+Body:
+
+```json
+{ "botId": "bot_abc" }
+```
+
+Response `200 OK`:
+
+```json
+{ "botId": "bot_abc", "tournamentId": "t7kXq2" }
+```
+
+---
+
+#### Unregister bot
+
+```
+DELETE /api/tournament/{tournamentId}/bots/{botId}
+```
+
+Only allowed while `status == "created"`. Response `204 No Content`.
+
+---
+
+#### List registered bots
+
+```
+GET /api/tournament/{tournamentId}/bots
+```
+
+Response `200 OK`:
+
+```json
+{
+  "bots": [
+    { "botId": "bot_abc", "botName": "StockfishClone" }
+  ]
+}
+```
+
+---
+
+### Standings and pairings
+
+#### Get standings
+
+```
+GET /api/tournament/{tournamentId}/standings
+```
+
+Response `200 OK`:
+
+```json
+{ "standings": [ /* Standing[] */ ] }
+```
+
+---
+
+#### Get pairings for a round
+
+```
+GET /api/tournament/{tournamentId}/rounds/{round}/pairings
+```
+
+Response `200 OK`:
+
+```json
+{ "pairings": [ /* Pairing[] */ ] }
+```
+
+---
+
+### Bot streaming
+
+#### Stream tournament events
+
+```
+GET /api/tournament/{tournamentId}/stream
+```
+
+Headers: `Accept: text/event-stream`
+
+Server-Sent Events stream scoped to this tournament. The bot receives `pairingReady` events when it is assigned a game, at which point it should connect to the existing bot game stream:
+
+```
+GET /bot/stream/game/{gameId}    (existing endpoint)
+POST /bot/game/{gameId}/move/{uci}  (existing endpoint)
+```
+
+The tournament module never sends moves — bots do that themselves through the existing bot endpoints.
+
+---
+
+## Typical bot flow
+
+```
+1. POST /api/tournament                          # director creates tournament
+2. POST /api/tournament/{id}/bots               # each bot registers
+3. POST /api/tournament/{id}/start              # director starts
+4. GET  /api/tournament/{id}/stream  (SSE)      # each bot opens stream
+
+   -- per round --
+5. receive: pairingReady { gameId, color }
+6. GET  /bot/stream/game/{gameId}               # existing endpoint
+7. POST /bot/game/{gameId}/move/{uci}           # existing endpoint, repeated
+   -- game ends --
+
+8. receive: roundFinished
+9. GET  /api/tournament/{id}/standings          # optional, inspect scores
+   -- repeat 5–9 for each round --
+
+10. receive: tournamentFinished
+11. GET /api/tournament/{id}/standings          # final ranking
+```
+
+---
+
+## Error responses
+
+| Status | Meaning                                              |
+|--------|------------------------------------------------------|
+| 400    | Invalid request body or parameters                   |
+| 401    | Missing or invalid JWT                               |
+| 403    | Action not allowed (wrong director, wrong bot, etc.) |
+| 404    | Tournament or bot not found                          |
+| 409    | Tournament already started / bot already registered  |
@@ -0,0 +1,623 @@
+openapi: 3.0.3
+info:
+  title: NowChess Tournament API
+  description: |
+    Swiss-system bot tournaments, modelled after the Lichess API style.
+
+    Game moves flow through the existing board and bot endpoints — this module
+    handles pairings, standings, and lifecycle only.
+
+    ## Streaming
+    Endpoints marked **NDJSON** return newline-delimited JSON objects
+    (`application/x-ndjson`). Each line is one complete JSON object. The
+    connection stays open until the tournament or round ends.
+
+    ## Bot flow
+    ```
+    POST /api/tournament                       # create
+    POST /api/tournament/{id}/join             # each bot joins
+    POST /api/tournament/{id}/start            # director starts
+
+    GET  /api/tournament/{id}/stream  (NDJSON) # open before start
+
+    -- per round --
+    receive gameStart { gameId, color }
+    GET  /bot/stream/game/{gameId}    (existing, NDJSON)
+    POST /bot/game/{gameId}/move/{uci}         (existing)
+    -- repeat --
+
+    GET  /api/tournament/{id}/results (NDJSON) # final standings
+    ```
+  version: 1.0.0
+
+servers:
+  - url: https://st.nowchess.janis-eccarius.de
+    description: Staging
+  - url: https://nowchess.janis-eccarius.de
+    description: Production
+  - url: http://localhost:8086
+    description: Local
+
+security:
+  - bearerAuth: []
+
+tags:
+  - name: Tournament
+    description: Tournament lifecycle
+  - name: Participation
+    description: Join and withdraw
+  - name: Results
+    description: Standings, pairings, and game export
+  - name: Stream
+    description: NDJSON event streams
+
+paths:
+
+  /api/tournament:
+    get:
+      tags: [Tournament]
+      summary: Get current tournaments
+      description: Returns tournaments grouped by status. No auth required.
+      security: []
+      responses:
+        "200":
+          description: Tournaments by status
+          content:
+            application/json:
+              schema:
+                type: object
+                properties:
+                  created:
+                    type: array
+                    items:
+                      $ref: "#/components/schemas/TournamentInfo"
+                  started:
+                    type: array
+                    items:
+                      $ref: "#/components/schemas/TournamentInfo"
+                  finished:
+                    type: array
+                    items:
+                      $ref: "#/components/schemas/TournamentInfo"
+
+    post:
+      tags: [Tournament]
+      summary: Create a new tournament
+      description: The authenticated user becomes the tournament director.
+      requestBody:
+        required: true
+        content:
+          application/x-www-form-urlencoded:
+            schema:
+              $ref: "#/components/schemas/CreateTournamentForm"
+      responses:
+        "201":
+          description: Tournament created
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/Tournament"
+        "400":
+          $ref: "#/components/responses/BadRequest"
+        "401":
+          $ref: "#/components/responses/Unauthorized"
+
+  /api/tournament/{id}:
+    parameters:
+      - $ref: "#/components/parameters/id"
+
+    get:
+      tags: [Tournament]
+      summary: Get a tournament
+      description: Includes the first page of standings in the `standing` field.
+      security: []
+      responses:
+        "200":
+          description: Tournament with embedded standings
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/Tournament"
+        "404":
+          $ref: "#/components/responses/NotFound"
+
+    delete:
+      tags: [Tournament]
+      summary: Terminate a tournament
+      description: Only the director may terminate. Only allowed while status is `created`.
+      responses:
+        "204":
+          description: Terminated
+        "401":
+          $ref: "#/components/responses/Unauthorized"
+        "403":
+          $ref: "#/components/responses/Forbidden"
+        "404":
+          $ref: "#/components/responses/NotFound"
+        "409":
+          $ref: "#/components/responses/Conflict"
+
+  /api/tournament/{id}/start:
+    parameters:
+      - $ref: "#/components/parameters/id"
+
+    post:
+      tags: [Tournament]
+      summary: Start the tournament
+      description: |
+        Only the director may start. Requires at least 2 joined bots.
+        Computes round 1 pairings and creates games via `POST /api/board/game`.
+      responses:
+        "200":
+          description: Tournament started
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/Tournament"
+        "401":
+          $ref: "#/components/responses/Unauthorized"
+        "403":
+          $ref: "#/components/responses/Forbidden"
+        "404":
+          $ref: "#/components/responses/NotFound"
+        "409":
+          $ref: "#/components/responses/Conflict"
+
+  /api/tournament/{id}/join:
+    parameters:
+      - $ref: "#/components/parameters/id"
+
+    post:
+      tags: [Participation]
+      summary: Join a tournament
+      description: |
+        Register the authenticated bot for the tournament. Only allowed while
+        status is `created`. The token subject must be a bot account.
+      responses:
+        "200":
+          description: Ok
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/Ok"
+        "401":
+          $ref: "#/components/responses/Unauthorized"
+        "403":
+          $ref: "#/components/responses/Forbidden"
+        "404":
+          $ref: "#/components/responses/NotFound"
+        "409":
+          $ref: "#/components/responses/Conflict"
+
+  /api/tournament/{id}/withdraw:
+    parameters:
+      - $ref: "#/components/parameters/id"
+
+    post:
+      tags: [Participation]
+      summary: Withdraw from a tournament
+      description: Only allowed while status is `created`.
+      responses:
+        "200":
+          description: Ok
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/Ok"
+        "401":
+          $ref: "#/components/responses/Unauthorized"
+        "403":
+          $ref: "#/components/responses/Forbidden"
+        "404":
+          $ref: "#/components/responses/NotFound"
+        "409":
+          $ref: "#/components/responses/Conflict"
+
+  /api/tournament/{id}/results:
+    parameters:
+      - $ref: "#/components/parameters/id"
+
+    get:
+      tags: [Results]
+      summary: Get results as NDJSON stream
+      description: |
+        Streams one `Result` object per line, sorted by rank ascending.
+        Available at any point during or after the tournament.
+      security: []
+      parameters:
+        - name: nb
+          in: query
+          description: Max number of results to stream (default all)
+          schema:
+            type: integer
+            minimum: 1
+      responses:
+        "200":
+          description: NDJSON stream of results
+          content:
+            application/x-ndjson:
+              schema:
+                $ref: "#/components/schemas/Result"
+        "404":
+          $ref: "#/components/responses/NotFound"
+
+  /api/tournament/{id}/round/{round}:
+    parameters:
+      - $ref: "#/components/parameters/id"
+      - name: round
+        in: path
+        required: true
+        schema:
+          type: integer
+          minimum: 1
+
+    get:
+      tags: [Results]
+      summary: Get pairings for a round
+      security: []
+      responses:
+        "200":
+          description: Pairings for the specified round
+          content:
+            application/json:
+              schema:
+                type: object
+                properties:
+                  round:
+                    type: integer
+                    example: 2
+                  pairings:
+                    type: array
+                    items:
+                      $ref: "#/components/schemas/Pairing"
+        "404":
+          $ref: "#/components/responses/NotFound"
+
+  /api/tournament/{id}/export/games:
+    parameters:
+      - $ref: "#/components/parameters/id"
+
+    get:
+      tags: [Results]
+      summary: Export all games
+      description: |
+        Returns all games of the tournament. Accepts both PGN and NDJSON via
+        the `Accept` header.
+      security: []
+      parameters:
+        - name: Accept
+          in: header
+          schema:
+            type: string
+            enum:
+              - application/x-chess-pgn
+              - application/x-ndjson
+            default: application/x-chess-pgn
+      responses:
+        "200":
+          description: Games in the requested format
+          content:
+            application/x-chess-pgn:
+              schema:
+                type: string
+                description: Standard PGN, one game per block
+            application/x-ndjson:
+              schema:
+                $ref: "#/components/schemas/GameExport"
+        "404":
+          $ref: "#/components/responses/NotFound"
+
+  /api/tournament/{id}/stream:
+    parameters:
+      - $ref: "#/components/parameters/id"
+
+    get:
+      tags: [Stream]
+      summary: Stream tournament events
+      description: |
+        NDJSON stream scoped to one tournament. Keep this connection open for
+        the full tournament lifetime.
+
+        On `gameStart` the bot connects to the existing bot endpoints:
+        - `GET /bot/stream/game/{gameId}` — stream game state (existing)
+        - `POST /bot/game/{gameId}/move/{uci}` — submit moves (existing)
+      responses:
+        "200":
+          description: NDJSON event stream
+          content:
+            application/x-ndjson:
+              schema:
+                $ref: "#/components/schemas/TournamentEvent"
+        "401":
+          $ref: "#/components/responses/Unauthorized"
+        "404":
+          $ref: "#/components/responses/NotFound"
+
+components:
+
+  securitySchemes:
+    bearerAuth:
+      type: http
+      scheme: bearer
+      bearerFormat: JWT
+
+  parameters:
+    id:
+      name: id
+      in: path
+      required: true
+      schema:
+        type: string
+      example: t7kXq2
+
+  schemas:
+
+    Clock:
+      type: object
+      required: [limit, increment]
+      properties:
+        limit:
+          type: integer
+          description: Base time in seconds
+          example: 300
+        increment:
+          type: integer
+          description: Increment per move in seconds
+          example: 3
+
+    Variant:
+      type: object
+      properties:
+        key:
+          type: string
+          example: standard
+        name:
+          type: string
+          example: Standard
+
+    BotRef:
+      type: object
+      properties:
+        id:
+          type: string
+          example: bot_abc
+        name:
+          type: string
+          example: StockfishClone
+
+    Standing:
+      type: object
+      properties:
+        page:
+          type: integer
+          example: 1
+        players:
+          type: array
+          items:
+            $ref: "#/components/schemas/Result"
+
+    TournamentInfo:
+      description: Lightweight tournament summary used in list responses.
+      type: object
+      properties:
+        id:
+          type: string
+          example: t7kXq2
+        fullName:
+          type: string
+          example: Friday Night Bots Swiss
+        clock:
+          $ref: "#/components/schemas/Clock"
+        variant:
+          $ref: "#/components/schemas/Variant"
+        rated:
+          type: boolean
+          example: true
+        nbPlayers:
+          type: integer
+          example: 8
+        nbRounds:
+          type: integer
+          example: 5
+        createdBy:
+          type: string
+          example: userId
+        startsAt:
+          type: string
+          format: date-time
+
+    Tournament:
+      allOf:
+        - $ref: "#/components/schemas/TournamentInfo"
+        - type: object
+          properties:
+            status:
+              type: string
+              enum: [created, started, finished]
+              example: started
+            round:
+              type: integer
+              description: Current round number
+              example: 2
+            standing:
+              $ref: "#/components/schemas/Standing"
+            winner:
+              description: Present only when status is `finished`
+              allOf:
+                - $ref: "#/components/schemas/BotRef"
+              nullable: true
+
+    CreateTournamentForm:
+      type: object
+      required: [name, nbRounds, clockLimit, clockIncrement]
+      properties:
+        name:
+          type: string
+          example: Friday Night Bots
+        nbRounds:
+          type: integer
+          minimum: 1
+          example: 5
+        clockLimit:
+          type: integer
+          description: Base time in seconds
+          example: 300
+        clockIncrement:
+          type: integer
+          description: Increment per move in seconds
+          example: 3
+        rated:
+          type: boolean
+          default: true
+
+    Result:
+      type: object
+      properties:
+        rank:
+          type: integer
+          example: 1
+        points:
+          type: number
+          format: double
+          example: 3.5
+        tieBreak:
+          type: number
+          format: double
+          description: Buchholz score (sum of opponents' points)
+          example: 9.0
+        bot:
+          $ref: "#/components/schemas/BotRef"
+        nbGames:
+          type: integer
+          example: 4
+        wins:
+          type: integer
+          example: 3
+        draws:
+          type: integer
+          example: 1
+        losses:
+          type: integer
+          example: 0
+
+    Pairing:
+      type: object
+      properties:
+        round:
+          type: integer
+          example: 2
+        white:
+          $ref: "#/components/schemas/BotRef"
+        black:
+          $ref: "#/components/schemas/BotRef"
+        gameId:
+          type: string
+          example: j0nPtcjl
+        winner:
+          type: string
+          enum: [white, black, draw]
+          nullable: true
+          description: Null while the game is ongoing
+
+    GameExport:
+      description: One game object per NDJSON line.
+      type: object
+      properties:
+        id:
+          type: string
+          example: j0nPtcjl
+        round:
+          type: integer
+          example: 2
+        white:
+          $ref: "#/components/schemas/BotRef"
+        black:
+          $ref: "#/components/schemas/BotRef"
+        winner:
+          type: string
+          enum: [white, black, draw]
+          nullable: true
+        moves:
+          type: string
+          description: Space-separated UCI moves
+          example: e2e4 e7e5 g1f3
+
+    TournamentEvent:
+      description: |
+        One JSON object per NDJSON line. Discriminate on `type`.
+
+        | type | extra fields |
+        |------|-------------|
+        | `tournamentStarted` | — |
+        | `roundStarted` | `round` |
+        | `gameStart` | `round`, `gameId`, `color` |
+        | `roundFinished` | `round` |
+        | `tournamentFinished` | `winner` |
+      type: object
+      required: [type]
+      properties:
+        type:
+          type: string
+          enum:
+            - tournamentStarted
+            - roundStarted
+            - gameStart
+            - roundFinished
+            - tournamentFinished
+        round:
+          type: integer
+          example: 2
+        gameId:
+          type: string
+          example: j0nPtcjl
+        color:
+          type: string
+          enum: [white, black]
+        winner:
+          $ref: "#/components/schemas/BotRef"
+
+    Ok:
+      type: object
+      properties:
+        ok:
+          type: boolean
+          example: true
+
+    Error:
+      type: object
+      properties:
+        error:
+          type: string
+          example: tournament already started
+
+  responses:
+    BadRequest:
+      description: Invalid request body or parameters
+      content:
+        application/json:
+          schema:
+            $ref: "#/components/schemas/Error"
+    Unauthorized:
+      description: Missing or invalid JWT
+      content:
+        application/json:
+          schema:
+            $ref: "#/components/schemas/Error"
+    Forbidden:
+      description: Action not permitted for this user or bot
+      content:
+        application/json:
+          schema:
+            $ref: "#/components/schemas/Error"
+    NotFound:
+      description: Tournament not found
+      content:
+        application/json:
+          schema:
+            $ref: "#/components/schemas/Error"
+    Conflict:
+      description: Conflicting state (e.g. already started, bot already joined)
+      content:
+        application/json:
+          schema:
+            $ref: "#/components/schemas/Error"
@@ -133,3 +133,94 @@
 ### Bug Fixes

 * **auth:** add InternalClientHeadersFactory for custom client headers management ([e279c39](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/e279c39246470156bf11e745ee72204018d4229d))
+##  (2026-05-11)
+
+### Features
+
+* add initialization metrics for various services ([d438e97](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d438e97f32bdde0bfc63c1b4a8cc810cdd093166))
+* **config:** add H2 database configuration for testing environment ([39c9e49](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/39c9e492cef2515368c074da9406f95e9c0c9e64))
+* **config:** update application.yml for PostgreSQL and remove staging/production configurations ([2404e61](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2404e6164c3b50ffccbea5238d636060d6abe4d6))
+* **config:** update application.yml for staging and production environments ([6113432](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6113432a14c476a3a0dfc0d449e17d023697f2ba))
+* configure logging and add OpenTelemetry support ([#49](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/49)) ([d57c488](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d57c4886612d1d92da0e1b79209fc83e6ef537a1))
+* **docker:** add .dockerignore and .gitignore files for build exclusions ([c987d8e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c987d8e258c0e6c4cfbdaa8381c64c410d7a2b83))
+* **docker:** add Dockerfiles for building Quarkus application in native and JVM modes ([3f2d2bb](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3f2d2bb4c97fa8cddba66e1da4427c54236dfeed))
+* **docker:** add Dockerfiles for Quarkus application in JVM and native modes ([34b9933](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/34b993304670cf2aa62cd2f6460cee7b9864b08e))
+* **logging:** add DEBUG/INFO/WARN logging across services (NCS-72) ([#41](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/41)) ([804a4bf](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/804a4bf179e3dfb19e2be4390e7e543caf5237c6))
+* NCS-78 Add Traceability to the Applications ([#46](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/46)) ([649566e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/649566eb3fcf38f91c8896a739f74ea318af312d))
+* NCS-78 Add Traceability to the Applications ([#47](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/47)) ([87dfc6c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/87dfc6c2bcce7f7d58fc641bd8d468a2e584c108))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+
+### Bug Fixes
+
+* **auth:** add InternalClientHeadersFactory for custom client headers management ([e279c39](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/e279c39246470156bf11e745ee72204018d4229d))
+##  (2026-05-12)
+
+### Features
+
+* add initialization metrics for various services ([d438e97](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d438e97f32bdde0bfc63c1b4a8cc810cdd093166))
+* add OpenTelemetry trace configuration with parentbased sampler ([3904d5a](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3904d5ad8ad4930ddee65287a7bfab785a6148f5))
+* **config:** add H2 database configuration for testing environment ([39c9e49](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/39c9e492cef2515368c074da9406f95e9c0c9e64))
+* **config:** update application.yml for PostgreSQL and remove staging/production configurations ([2404e61](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2404e6164c3b50ffccbea5238d636060d6abe4d6))
+* **config:** update application.yml for staging and production environments ([6113432](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6113432a14c476a3a0dfc0d449e17d023697f2ba))
+* configure logging and add OpenTelemetry support ([#49](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/49)) ([d57c488](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d57c4886612d1d92da0e1b79209fc83e6ef537a1))
+* **docker:** add .dockerignore and .gitignore files for build exclusions ([c987d8e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c987d8e258c0e6c4cfbdaa8381c64c410d7a2b83))
+* **docker:** add Dockerfiles for building Quarkus application in native and JVM modes ([3f2d2bb](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3f2d2bb4c97fa8cddba66e1da4427c54236dfeed))
+* **docker:** add Dockerfiles for Quarkus application in JVM and native modes ([34b9933](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/34b993304670cf2aa62cd2f6460cee7b9864b08e))
+* **logging:** add DEBUG/INFO/WARN logging across services (NCS-72) ([#41](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/41)) ([804a4bf](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/804a4bf179e3dfb19e2be4390e7e543caf5237c6))
+* NCS-78 Add Traceability to the Applications ([#46](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/46)) ([649566e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/649566eb3fcf38f91c8896a739f74ea318af312d))
+* NCS-78 Add Traceability to the Applications ([#47](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/47)) ([87dfc6c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/87dfc6c2bcce7f7d58fc641bd8d468a2e584c108))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+
+### Bug Fixes
+
+* **auth:** add InternalClientHeadersFactory for custom client headers management ([e279c39](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/e279c39246470156bf11e745ee72204018d4229d))
+##  (2026-05-12)
+
+### Features
+
+* add authentication permissions for metrics endpoints in application.yml ([04edd4d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/04edd4d6fd8a63196c36f6d67992832febc9bebb))
+* add initialization metrics for various services ([d438e97](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d438e97f32bdde0bfc63c1b4a8cc810cdd093166))
+* add OpenTelemetry trace configuration with parentbased sampler ([3904d5a](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3904d5ad8ad4930ddee65287a7bfab785a6148f5))
+* **config:** add H2 database configuration for testing environment ([39c9e49](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/39c9e492cef2515368c074da9406f95e9c0c9e64))
+* **config:** update application.yml for PostgreSQL and remove staging/production configurations ([2404e61](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2404e6164c3b50ffccbea5238d636060d6abe4d6))
+* **config:** update application.yml for staging and production environments ([6113432](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6113432a14c476a3a0dfc0d449e17d023697f2ba))
+* configure logging and add OpenTelemetry support ([#49](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/49)) ([d57c488](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d57c4886612d1d92da0e1b79209fc83e6ef537a1))
+* **docker:** add .dockerignore and .gitignore files for build exclusions ([c987d8e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c987d8e258c0e6c4cfbdaa8381c64c410d7a2b83))
+* **docker:** add Dockerfiles for building Quarkus application in native and JVM modes ([3f2d2bb](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3f2d2bb4c97fa8cddba66e1da4427c54236dfeed))
+* **docker:** add Dockerfiles for Quarkus application in JVM and native modes ([34b9933](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/34b993304670cf2aa62cd2f6460cee7b9864b08e))
+* **logging:** add DEBUG/INFO/WARN logging across services (NCS-72) ([#41](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/41)) ([804a4bf](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/804a4bf179e3dfb19e2be4390e7e543caf5237c6))
+* NCS-78 Add Traceability to the Applications ([#46](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/46)) ([649566e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/649566eb3fcf38f91c8896a739f74ea318af312d))
+* NCS-78 Add Traceability to the Applications ([#47](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/47)) ([87dfc6c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/87dfc6c2bcce7f7d58fc641bd8d468a2e584c108))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+
+### Bug Fixes
+
+* **auth:** add InternalClientHeadersFactory for custom client headers management ([e279c39](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/e279c39246470156bf11e745ee72204018d4229d))
+##  (2026-05-12)
+
+### Features
+
+* add authentication permissions for metrics endpoints in application.yml ([04edd4d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/04edd4d6fd8a63196c36f6d67992832febc9bebb))
+* add initialization metrics for various services ([d438e97](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d438e97f32bdde0bfc63c1b4a8cc810cdd093166))
+* add OpenTelemetry trace configuration with parentbased sampler ([3904d5a](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3904d5ad8ad4930ddee65287a7bfab785a6148f5))
+* **config:** add H2 database configuration for testing environment ([39c9e49](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/39c9e492cef2515368c074da9406f95e9c0c9e64))
+* **config:** update application.yml for PostgreSQL and remove staging/production configurations ([2404e61](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2404e6164c3b50ffccbea5238d636060d6abe4d6))
+* **config:** update application.yml for staging and production environments ([6113432](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6113432a14c476a3a0dfc0d449e17d023697f2ba))
+* configure logging and add OpenTelemetry support ([#49](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/49)) ([d57c488](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d57c4886612d1d92da0e1b79209fc83e6ef537a1))
+* **docker:** add .dockerignore and .gitignore files for build exclusions ([c987d8e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c987d8e258c0e6c4cfbdaa8381c64c410d7a2b83))
+* **docker:** add Dockerfiles for building Quarkus application in native and JVM modes ([3f2d2bb](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3f2d2bb4c97fa8cddba66e1da4427c54236dfeed))
+* **docker:** add Dockerfiles for Quarkus application in JVM and native modes ([34b9933](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/34b993304670cf2aa62cd2f6460cee7b9864b08e))
+* **logging:** add DEBUG/INFO/WARN logging across services (NCS-72) ([#41](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/41)) ([804a4bf](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/804a4bf179e3dfb19e2be4390e7e543caf5237c6))
+* NCS-78 Add Traceability to the Applications ([#46](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/46)) ([649566e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/649566eb3fcf38f91c8896a739f74ea318af312d))
+* NCS-78 Add Traceability to the Applications ([#47](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/47)) ([87dfc6c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/87dfc6c2bcce7f7d58fc641bd8d468a2e584c108))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+* update application.yml with new API root paths and add Micrometer and OpenTelemetry dependencies ([72ce262](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/72ce262bc491f94297700e6002fb5d0812e2cc2a))
+
+### Bug Fixes
+
+* **auth:** add InternalClientHeadersFactory for custom client headers management ([e279c39](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/e279c39246470156bf11e745ee72204018d4229d))
+
+### Reverts
+
+* Revert "feat: add authentication permissions for metrics endpoints in application.yml" ([a298417](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/a298417b9e4d68dc73bbf40be63d9484536e9f83))
+* Revert "refactor: update metrics paths formatting in application.yml for clarity" ([3870566](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/38705663498d5f47c40dafe2f26198589ede8656))
@@ -57,10 +57,15 @@ nowchess:

 "%deployed":
  quarkus:
+    http:
+      root-path: /api/account
    log:
      console:
        json: true
    otel:
+      traces:
+        sampler: parentbased_traceidratio
+        sampler-arg: 0.1
      exporter:
        otlp:
          endpoint: ${OTEL_EXPORTER_OTLP_ENDPOINT:http://localhost:4317}
@@ -7,6 +7,7 @@ import de.nowchess.account.repository.{BotAccountRepository, OfficialBotAccountR
 import io.micrometer.core.instrument.MeterRegistry
 import io.quarkus.elytron.security.common.BcryptUtil
 import io.smallrye.jwt.build.Jwt
+import jakarta.annotation.PostConstruct
 import jakarta.enterprise.context.ApplicationScoped
 import jakarta.inject.Inject
 import jakarta.transaction.Transactional
@@ -35,6 +36,13 @@ class AccountService:
  var meterRegistry: MeterRegistry = uninitialized
  // scalafix:on

+  @PostConstruct
+  def initializeMetrics(): Unit =
+    meterRegistry.counter("nowchess.users.registrations", "result", "success").increment(0)
+    meterRegistry.counter("nowchess.users.registrations", "result", "failure").increment(0)
+    meterRegistry.counter("nowchess.auth.logins", "result", "success").increment(0)
+    meterRegistry.counter("nowchess.auth.logins", "result", "failure").increment(0)
+
  @Transactional
  def register(req: RegisterRequest): Either[AccountError, UserAccount] =
    log.infof("Registering user %s", req.username)
@@ -19,6 +19,7 @@ import de.nowchess.account.dto.{
 import de.nowchess.account.error.ChallengeError
 import de.nowchess.account.repository.{ChallengeRepository, UserAccountRepository}
 import io.micrometer.core.instrument.MeterRegistry
+import jakarta.annotation.PostConstruct
 import jakarta.enterprise.context.ApplicationScoped
 import jakarta.inject.Inject
 import jakarta.transaction.Transactional
@@ -54,6 +55,12 @@ class ChallengeService:
  var meterRegistry: MeterRegistry = uninitialized
  // scalafix:on

+  @PostConstruct
+  def initializeMetrics(): Unit =
+    meterRegistry.counter("nowchess.challenges.created").increment(0)
+    meterRegistry.counter("nowchess.challenges.accepted").increment(0)
+    meterRegistry.counter("nowchess.challenges.declined").increment(0)
+
  @Transactional
  def create(challengerId: UUID, destUsername: String, req: ChallengeRequest): Either[ChallengeError, Challenge] =
    val result = createChallenge(challengerId, destUsername, req)
@@ -1,3 +1,3 @@
 MAJOR=0
-MINOR=10
+MINOR=14
 PATCH=0
@@ -83,3 +83,49 @@
 * NCS-78 Add Traceability to the Applications ([#46](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/46)) ([649566e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/649566eb3fcf38f91c8896a739f74ea318af312d))
 * NCS-78 Add Traceability to the Applications ([#47](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/47)) ([87dfc6c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/87dfc6c2bcce7f7d58fc641bd8d468a2e584c108))
 * true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+##  (2026-05-12)
+
+### Features
+
+* add OpenTelemetry trace configuration with parentbased sampler ([3904d5a](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3904d5ad8ad4930ddee65287a7bfab785a6148f5))
+* **config:** update application.yml for PostgreSQL and remove staging/production configurations ([2404e61](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2404e6164c3b50ffccbea5238d636060d6abe4d6))
+* **config:** update application.yml for staging and production environments ([6113432](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6113432a14c476a3a0dfc0d449e17d023697f2ba))
+* **docker:** add .dockerignore and .gitignore files for build exclusions ([c987d8e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c987d8e258c0e6c4cfbdaa8381c64c410d7a2b83))
+* **docker:** add Dockerfiles for building Quarkus application in native and JVM modes ([3f2d2bb](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3f2d2bb4c97fa8cddba66e1da4427c54236dfeed))
+* **docker:** add Dockerfiles for Quarkus application in JVM and native modes ([34b9933](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/34b993304670cf2aa62cd2f6460cee7b9864b08e))
+* **logging:** add DEBUG/INFO/WARN logging across services (NCS-72) ([#41](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/41)) ([804a4bf](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/804a4bf179e3dfb19e2be4390e7e543caf5237c6))
+* NCS-78 Add Traceability to the Applications ([#46](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/46)) ([649566e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/649566eb3fcf38f91c8896a739f74ea318af312d))
+* NCS-78 Add Traceability to the Applications ([#47](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/47)) ([87dfc6c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/87dfc6c2bcce7f7d58fc641bd8d468a2e584c108))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+##  (2026-05-12)
+
+### Features
+
+* add OpenTelemetry trace configuration with parentbased sampler ([3904d5a](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3904d5ad8ad4930ddee65287a7bfab785a6148f5))
+* **config:** update application.yml for PostgreSQL and remove staging/production configurations ([2404e61](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2404e6164c3b50ffccbea5238d636060d6abe4d6))
+* **config:** update application.yml for staging and production environments ([6113432](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6113432a14c476a3a0dfc0d449e17d023697f2ba))
+* **docker:** add .dockerignore and .gitignore files for build exclusions ([c987d8e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c987d8e258c0e6c4cfbdaa8381c64c410d7a2b83))
+* **docker:** add Dockerfiles for building Quarkus application in native and JVM modes ([3f2d2bb](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3f2d2bb4c97fa8cddba66e1da4427c54236dfeed))
+* **docker:** add Dockerfiles for Quarkus application in JVM and native modes ([34b9933](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/34b993304670cf2aa62cd2f6460cee7b9864b08e))
+* **logging:** add DEBUG/INFO/WARN logging across services (NCS-72) ([#41](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/41)) ([804a4bf](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/804a4bf179e3dfb19e2be4390e7e543caf5237c6))
+* NCS-78 Add Traceability to the Applications ([#46](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/46)) ([649566e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/649566eb3fcf38f91c8896a739f74ea318af312d))
+* NCS-78 Add Traceability to the Applications ([#47](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/47)) ([87dfc6c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/87dfc6c2bcce7f7d58fc641bd8d468a2e584c108))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+##  (2026-05-12)
+
+### Features
+
+* add OpenTelemetry trace configuration with parentbased sampler ([3904d5a](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3904d5ad8ad4930ddee65287a7bfab785a6148f5))
+* **config:** update application.yml for PostgreSQL and remove staging/production configurations ([2404e61](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2404e6164c3b50ffccbea5238d636060d6abe4d6))
+* **config:** update application.yml for staging and production environments ([6113432](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6113432a14c476a3a0dfc0d449e17d023697f2ba))
+* **docker:** add .dockerignore and .gitignore files for build exclusions ([c987d8e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c987d8e258c0e6c4cfbdaa8381c64c410d7a2b83))
+* **docker:** add Dockerfiles for building Quarkus application in native and JVM modes ([3f2d2bb](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3f2d2bb4c97fa8cddba66e1da4427c54236dfeed))
+* **docker:** add Dockerfiles for Quarkus application in JVM and native modes ([34b9933](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/34b993304670cf2aa62cd2f6460cee7b9864b08e))
+* **logging:** add DEBUG/INFO/WARN logging across services (NCS-72) ([#41](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/41)) ([804a4bf](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/804a4bf179e3dfb19e2be4390e7e543caf5237c6))
+* NCS-78 Add Traceability to the Applications ([#46](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/46)) ([649566e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/649566eb3fcf38f91c8896a739f74ea318af312d))
+* NCS-78 Add Traceability to the Applications ([#47](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/47)) ([87dfc6c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/87dfc6c2bcce7f7d58fc641bd8d468a2e584c108))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+
+### Reverts
+
+* Revert "refactor: update metrics paths formatting in application.yml for clarity" ([3870566](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/38705663498d5f47c40dafe2f26198589ede8656))
@@ -22,6 +22,9 @@ nowchess:
      console:
        json: true
    otel:
+      traces:
+        sampler: parentbased_traceidratio
+        sampler-arg: 0.1
      exporter:
        otlp:
          endpoint: ${OTEL_EXPORTER_OTLP_ENDPOINT:http://localhost:4317}
@@ -1,3 +1,3 @@
 MAJOR=0
-MINOR=8
+MINOR=11
 PATCH=0
@@ -279,3 +279,58 @@
 * **middleware:** update paths for bot generation and stockfish configuration ([2dd0501](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2dd0501687db08dcd242359f6837125baf8a2fdc))
 * **redis:** update Redis configuration with max pool size and waiting parameters ([5baf6a7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5baf6a7cdbea484fc49c02e2b5a1c3919b7fa2c4))
 * update HealthMonitor to evict instances without associated pods ([0f41f13](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/0f41f13ce68b76846684bab67241a122250dfaf9))
+##  (2026-05-11)
+
+### Features
+
+* add initialization metrics for various services ([d438e97](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d438e97f32bdde0bfc63c1b4a8cc810cdd093166))
+* **config:** update application.yml for PostgreSQL and remove staging/production configurations ([2404e61](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2404e6164c3b50ffccbea5238d636060d6abe4d6))
+* **config:** update application.yml for staging and production environments ([6113432](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6113432a14c476a3a0dfc0d449e17d023697f2ba))
+* configure logging and add OpenTelemetry support ([#49](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/49)) ([d57c488](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d57c4886612d1d92da0e1b79209fc83e6ef537a1))
+* **docker:** add .dockerignore and .gitignore files for build exclusions ([c987d8e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c987d8e258c0e6c4cfbdaa8381c64c410d7a2b83))
+* **docker:** add Dockerfiles for building Quarkus application in native and JVM modes ([3f2d2bb](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3f2d2bb4c97fa8cddba66e1da4427c54236dfeed))
+* **docker:** add Dockerfiles for Quarkus application in JVM and native modes ([34b9933](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/34b993304670cf2aa62cd2f6460cee7b9864b08e))
+* **logging:** add DEBUG/INFO/WARN logging across services (NCS-72) ([#41](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/41)) ([804a4bf](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/804a4bf179e3dfb19e2be4390e7e543caf5237c6))
+* NCS-78 Add Traceability to the Applications ([#46](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/46)) ([649566e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/649566eb3fcf38f91c8896a739f74ea318af312d))
+* NCS-78 Add Traceability to the Applications ([#47](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/47)) ([87dfc6c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/87dfc6c2bcce7f7d58fc641bd8d468a2e584c108))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+
+### Bug Fixes
+
+* add instance-dead-timeout configuration and update HealthMonitor to use it for stale instance eviction ([be0b710](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/be0b710543b542da5c301efef7d2d587d0ba758a))
+* **coordinator:** refine type casting in rolloutSpec method ([#45](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/45)) ([d522f7f](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d522f7f6edf9c985f03dd16816439d4184f1a589))
+* **coordinator:** use genericKubernetesResources API for Argo Rollout scaling ([#43](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/43)) ([fa3c6b2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/fa3c6b2886dc59c14c5dad834acc9b41e42023bb))
+* **coordinator:** use genericKubernetesResources API for Argo Rollout scaling ([#44](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/44)) ([82d0b75](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/82d0b754be1075084944b466858672d944f9f7d8))
+* **dependencies:** replace Fabric8 Kubernetes client with Quarkus Kubernetes client ([5f44570](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5f44570b357277d09f33b7296860c421e2e70ce0))
+* enhance AutoScaler and InstanceRegistry for replica management and stale instance eviction ([b4920d3](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b4920d3817e58bda94d7764e608b856ce9a909f7))
+* **middleware:** update paths for bot generation and stockfish configuration ([2dd0501](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2dd0501687db08dcd242359f6837125baf8a2fdc))
+* **redis:** update Redis configuration with max pool size and waiting parameters ([5baf6a7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5baf6a7cdbea484fc49c02e2b5a1c3919b7fa2c4))
+* update HealthMonitor to evict instances without associated pods ([0f41f13](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/0f41f13ce68b76846684bab67241a122250dfaf9))
+##  (2026-05-12)
+
+### Features
+
+* add initialization metrics for various services ([d438e97](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d438e97f32bdde0bfc63c1b4a8cc810cdd093166))
+* add OpenTelemetry trace configuration with parentbased sampler ([3904d5a](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3904d5ad8ad4930ddee65287a7bfab785a6148f5))
+* **config:** update application.yml for PostgreSQL and remove staging/production configurations ([2404e61](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2404e6164c3b50ffccbea5238d636060d6abe4d6))
+* **config:** update application.yml for staging and production environments ([6113432](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6113432a14c476a3a0dfc0d449e17d023697f2ba))
+* configure logging and add OpenTelemetry support ([#49](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/49)) ([d57c488](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d57c4886612d1d92da0e1b79209fc83e6ef537a1))
+* **docker:** add .dockerignore and .gitignore files for build exclusions ([c987d8e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c987d8e258c0e6c4cfbdaa8381c64c410d7a2b83))
+* **docker:** add Dockerfiles for building Quarkus application in native and JVM modes ([3f2d2bb](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3f2d2bb4c97fa8cddba66e1da4427c54236dfeed))
+* **docker:** add Dockerfiles for Quarkus application in JVM and native modes ([34b9933](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/34b993304670cf2aa62cd2f6460cee7b9864b08e))
+* **logging:** add DEBUG/INFO/WARN logging across services (NCS-72) ([#41](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/41)) ([804a4bf](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/804a4bf179e3dfb19e2be4390e7e543caf5237c6))
+* NCS-78 Add Traceability to the Applications ([#46](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/46)) ([649566e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/649566eb3fcf38f91c8896a739f74ea318af312d))
+* NCS-78 Add Traceability to the Applications ([#47](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/47)) ([87dfc6c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/87dfc6c2bcce7f7d58fc641bd8d468a2e584c108))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+
+### Bug Fixes
+
+* add instance-dead-timeout configuration and update HealthMonitor to use it for stale instance eviction ([be0b710](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/be0b710543b542da5c301efef7d2d587d0ba758a))
+* **coordinator:** refine type casting in rolloutSpec method ([#45](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/45)) ([d522f7f](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d522f7f6edf9c985f03dd16816439d4184f1a589))
+* **coordinator:** use genericKubernetesResources API for Argo Rollout scaling ([#43](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/43)) ([fa3c6b2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/fa3c6b2886dc59c14c5dad834acc9b41e42023bb))
+* **coordinator:** use genericKubernetesResources API for Argo Rollout scaling ([#44](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/44)) ([82d0b75](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/82d0b754be1075084944b466858672d944f9f7d8))
+* **dependencies:** replace Fabric8 Kubernetes client with Quarkus Kubernetes client ([5f44570](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5f44570b357277d09f33b7296860c421e2e70ce0))
+* enhance AutoScaler and InstanceRegistry for replica management and stale instance eviction ([b4920d3](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b4920d3817e58bda94d7764e608b856ce9a909f7))
+* **middleware:** update paths for bot generation and stockfish configuration ([2dd0501](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2dd0501687db08dcd242359f6837125baf8a2fdc))
+* **redis:** update Redis configuration with max pool size and waiting parameters ([5baf6a7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5baf6a7cdbea484fc49c02e2b5a1c3919b7fa2c4))
+* update HealthMonitor to evict instances without associated pods ([0f41f13](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/0f41f13ce68b76846684bab67241a122250dfaf9))
@@ -45,6 +45,8 @@ nowchess:
    k8s-namespace: default
    k8s-rollout-name: nowchess-core
    k8s-rollout-label-selector: "app=nowchess-core"
+    startup-validation-timeout: 15s
+    failover-wait-timeout: 30s

 ---
 # dev profile
@@ -59,6 +61,9 @@ nowchess:
      console:
        json: true
    otel:
+      traces:
+        sampler: parentbased_traceidratio
+        sampler-arg: 0.1
      exporter:
        otlp:
          endpoint: ${OTEL_EXPORTER_OTLP_ENDPOINT:http://localhost:4317}
@@ -56,3 +56,9 @@ trait CoordinatorConfig:

  @WithName("k8s-rollout-label-selector")
  def k8sRolloutLabelSelector: String
+
+  @WithName("startup-validation-timeout")
+  def startupValidationTimeout: Duration
+
+  @WithName("failover-wait-timeout")
+  def failoverWaitTimeout: Duration
@@ -9,6 +9,7 @@ import de.nowchess.coordinator.proto.{CoordinatorServiceGrpc, *}
 import io.grpc.stub.StreamObserver
 import com.fasterxml.jackson.databind.ObjectMapper
 import org.jboss.logging.Logger
+import java.util.concurrent.ConcurrentHashMap

@GrpcService
@Singleton
@@ -21,8 +22,9 @@ class CoordinatorGrpcServer extends CoordinatorServiceGrpc.CoordinatorServiceImp
  private var failoverService: FailoverService = uninitialized
  // scalafix:on DisableSyntax.var

-  private val mapper = ObjectMapper()
-  private val log    = Logger.getLogger(classOf[CoordinatorGrpcServer])
+  private val mapper        = ObjectMapper()
+  private val log           = Logger.getLogger(classOf[CoordinatorGrpcServer])
+  private val activeStreams = ConcurrentHashMap.newKeySet[String]()

  override def heartbeatStream(
      responseObserver: StreamObserver[CoordinatorCommand],
@@ -38,6 +40,7 @@ class CoordinatorGrpcServer extends CoordinatorServiceGrpc.CoordinatorServiceImp
        lastInstanceId = frame.getInstanceId
        if !firstFrameSeen then
          firstFrameSeen = true
+          activeStreams.add(frame.getInstanceId)
          log.infof(
            "First heartbeat from instance %s (host=%s http=%d grpc=%d)",
            frame.getInstanceId,
@@ -60,10 +63,19 @@ class CoordinatorGrpcServer extends CoordinatorServiceGrpc.CoordinatorServiceImp

      override def onError(t: Throwable): Unit =
        log.warnf(t, "Heartbeat stream error for instance %s", lastInstanceId)
-        if lastInstanceId.nonEmpty then failoverService.onInstanceStreamDropped(lastInstanceId)
+        if lastInstanceId.nonEmpty then
+          activeStreams.remove(lastInstanceId)
+          failoverService
+            .onInstanceStreamDropped(lastInstanceId)
+            .subscribe()
+            .`with`(
+              _ => (),
+              ex => log.warnf(ex, "Failover for %s failed", lastInstanceId),
+            )

      override def onCompleted: Unit =
        log.infof("Heartbeat stream completed for instance %s", lastInstanceId)
+        activeStreams.remove(lastInstanceId)

  override def batchResubscribeGames(
      request: BatchResubscribeRequest,
@@ -108,7 +120,18 @@ class CoordinatorGrpcServer extends CoordinatorServiceGrpc.CoordinatorServiceImp
    val instanceId = request.getInstanceId
    log.infof("Drain request for instance %s", instanceId)
    val gamesBefore = instanceRegistry.getInstance(instanceId).map(_.subscriptionCount).getOrElse(0)
-    failoverService.onInstanceStreamDropped(instanceId)
-    val response = DrainInstanceResponse.newBuilder().setGamesMigrated(gamesBefore).build()
-    responseObserver.onNext(response)
-    responseObserver.onCompleted()
+    failoverService
+      .onInstanceStreamDropped(instanceId)
+      .subscribe()
+      .`with`(
+        _ =>
+          val response = DrainInstanceResponse.newBuilder().setGamesMigrated(gamesBefore).build()
+          responseObserver.onNext(response)
+          responseObserver.onCompleted(),
+        ex =>
+          log.warnf(ex, "Drain failed for %s", instanceId)
+          responseObserver.onError(ex),
+      )
+
+  def hasActiveStream(instanceId: String): Boolean =
+    activeStreams.contains(instanceId)
@@ -70,7 +70,13 @@ class CoordinatorResource:
  @Produces(Array(MediaType.APPLICATION_JSON))
  def triggerFailover(@PathParam("instanceId") instanceId: String): scala.collection.Map[String, String] =
    log.infof("Manual failover triggered for instance %s", instanceId)
-    failoverService.onInstanceStreamDropped(instanceId)
+    failoverService
+      .onInstanceStreamDropped(instanceId)
+      .subscribe()
+      .`with`(
+        _ => (),
+        ex => log.warnf(ex, "Manual failover for %s failed", instanceId),
+      )
    Map("status" -> "failover_started", "instanceId" -> instanceId)

  @POST
@@ -45,6 +45,10 @@ class AutoScaler:
    Gauge
      .builder("nowchess.coordinator.load.average", avgLoadRef, _.get())
      .register(meterRegistry)
+    meterRegistry.counter("nowchess.coordinator.scale.events", "direction", "up").increment(0)
+    meterRegistry.counter("nowchess.coordinator.scale.events", "direction", "down").increment(0)
+    meterRegistry.counter("nowchess.coordinator.scale.failures", "direction", "up").increment(0)
+    meterRegistry.counter("nowchess.coordinator.scale.failures", "direction", "down").increment(0)
    ()

  // scalafix:off DisableSyntax.asInstanceOf
@@ -1,5 +1,6 @@
 package de.nowchess.coordinator.service

+import jakarta.annotation.PostConstruct
 import jakarta.enterprise.context.ApplicationScoped
 import jakarta.inject.Inject
 import io.quarkus.redis.datasource.RedisDataSource
@@ -11,6 +12,7 @@ import org.jboss.logging.Logger
 import scala.compiletime.uninitialized
 import scala.util.Try
 import java.time.Instant
+import java.util.concurrent.TimeUnit
 import de.nowchess.coordinator.grpc.CoreGrpcClient

@ApplicationScoped
@@ -41,6 +43,11 @@ class CacheEvictionManager:
  def setRedisPrefix(prefix: String): Unit =
    redisPrefix = prefix

+  @PostConstruct
+  def initializeMetrics(): Unit =
+    meterRegistry.timer("nowchess.coordinator.cache.eviction.duration").record(0L, TimeUnit.MILLISECONDS)
+    meterRegistry.counter("nowchess.coordinator.cache.evictions").increment(0)
+
  def evictStaleGames: Unit =
    meterRegistry.timer("nowchess.coordinator.cache.eviction.duration").record((() => runEviction()): Runnable)

@@ -8,6 +8,9 @@ import scala.compiletime.uninitialized
 import org.jboss.logging.Logger
 import de.nowchess.coordinator.dto.InstanceMetadata
 import de.nowchess.coordinator.grpc.CoreGrpcClient
+import de.nowchess.coordinator.config.CoordinatorConfig
+import io.smallrye.mutiny.Uni
+import java.time.Duration

@ApplicationScoped
 class FailoverService:
@@ -21,6 +24,9 @@ class FailoverService:
  @Inject
  private var coreGrpcClient: CoreGrpcClient = uninitialized

+  @Inject
+  private var config: CoordinatorConfig = uninitialized
+
  private val log         = Logger.getLogger(classOf[FailoverService])
  private var redisPrefix = "nowchess"
  // scalafix:on DisableSyntax.var
@@ -28,7 +34,7 @@ class FailoverService:
  def setRedisPrefix(prefix: String): Unit =
    redisPrefix = prefix

-  def onInstanceStreamDropped(instanceId: String): Unit =
+  def onInstanceStreamDropped(instanceId: String): Uni[Unit] =
    log.infof("Instance %s stream dropped, triggering failover", instanceId)

    val startTime = System.currentTimeMillis()
@@ -37,19 +43,32 @@ class FailoverService:
    val gameIds = getOrphanedGames(instanceId)
    log.infof("Found %d orphaned games for instance %s", gameIds.size, instanceId)

-    if gameIds.nonEmpty then
-      val healthyInstances = instanceRegistry.getAllInstances
-        .filter(_.state == "HEALTHY")
-        .sortBy(_.subscriptionCount)
+    if gameIds.isEmpty then
+      cleanupDeadInstance(instanceId)
+      Uni.createFrom().item(())
+    else
+      waitForHealthyInstanceAsync()
+        .onItem()
+        .transform { _ =>
+          val healthyInstances = instanceRegistry.getAllInstances
+            .filter(_.state == "HEALTHY")
+            .sortBy(_.subscriptionCount)
+          distributeGames(gameIds, healthyInstances, instanceId)

-      if healthyInstances.nonEmpty then
-        distributeGames(gameIds, healthyInstances, instanceId)
-
-        val elapsed = System.currentTimeMillis() - startTime
-        log.infof("Failover completed in %dms for instance %s", elapsed, instanceId)
-      else log.warnf("No healthy instances available for failover of %s", instanceId)
-
-    cleanupDeadInstance(instanceId)
+          val elapsed = System.currentTimeMillis() - startTime
+          log.infof("Failover completed in %dms for instance %s", elapsed, instanceId)
+          cleanupDeadInstance(instanceId)
+          ()
+        }
+        .onFailure()
+        .recoverWithItem { _ =>
+          log.errorf(
+            "No healthy instance appeared within %s — games orphaned for %s",
+            config.failoverWaitTimeout,
+            instanceId,
+          )
+          ()
+        }

  private def getOrphanedGames(instanceId: String): List[String] =
    val setKey = s"$redisPrefix:instance:$instanceId:games"
@@ -101,3 +120,16 @@ class FailoverService:
    val setKey = s"$redisPrefix:instance:$instanceId:games"
    redis.key(classOf[String]).del(setKey)
    log.infof("Cleaned up games set for instance %s", instanceId)
+
+  private def waitForHealthyInstanceAsync(): Uni[InstanceMetadata] =
+    Uni.createFrom().deferred(() =>
+      instanceRegistry.getAllInstances
+        .filter(_.state == "HEALTHY")
+        .sortBy(_.subscriptionCount)
+        .headOption match
+          case Some(inst) => Uni.createFrom().item(inst)
+          case None       => Uni.createFrom().failure(new RuntimeException("no healthy instance"))
+    ).onFailure()
+      .retry()
+      .withBackOff(Duration.ofMillis(500))
+      .expireIn(config.failoverWaitTimeout.toMillis)
@@ -1,17 +1,24 @@
 package de.nowchess.coordinator.service

+import jakarta.annotation.PostConstruct
 import jakarta.enterprise.context.ApplicationScoped
+import jakarta.enterprise.event.Observes
 import jakarta.enterprise.inject.Instance
 import jakarta.inject.Inject
 import de.nowchess.coordinator.config.CoordinatorConfig
 import io.fabric8.kubernetes.client.KubernetesClient
 import io.fabric8.kubernetes.api.model.Pod
+import io.fabric8.kubernetes.client.Watcher
+import io.fabric8.kubernetes.client.WatcherException
 import io.micrometer.core.instrument.MeterRegistry
 import io.quarkus.redis.datasource.RedisDataSource
+import io.quarkus.runtime.StartupEvent
 import scala.jdk.CollectionConverters.*
 import org.jboss.logging.Logger
 import scala.compiletime.uninitialized
 import java.time.Instant
+import de.nowchess.coordinator.grpc.CoordinatorGrpcServer
+import de.nowchess.coordinator.dto.InstanceMetadata

@ApplicationScoped
 class HealthMonitor:
@@ -31,6 +38,12 @@ class HealthMonitor:
  @Inject
  private var meterRegistry: MeterRegistry = uninitialized

+  @Inject
+  private var grpcServer: CoordinatorGrpcServer = uninitialized
+
+  @Inject
+  private var failoverService: FailoverService = uninitialized
+
  private val log         = Logger.getLogger(classOf[HealthMonitor])
  private var redisPrefix = "nowchess"
  // scalafix:on DisableSyntax.var
@@ -42,16 +55,33 @@ class HealthMonitor:
  def setRedisPrefix(prefix: String): Unit =
    redisPrefix = prefix

+  @PostConstruct
+  def initializeMetrics(): Unit =
+    meterRegistry.counter("nowchess.coordinator.health.checks").increment(0)
+    meterRegistry.counter("nowchess.coordinator.pods.unhealthy").increment(0)
+
+  def onStartup(@Observes ev: StartupEvent): Unit =
+    instanceRegistry.loadAllFromRedis()
+    val loaded = instanceRegistry.getAllInstances
+    log.infof("Startup: loaded %d instances from Redis", loaded.size)
+    if loaded.nonEmpty then
+      val timeoutMs = config.startupValidationTimeout.toMillis
+      Thread.ofVirtual().start(() => validateStartupInstances(timeoutMs))
+    startPodWatch()
+
  def checkInstanceHealth: Unit =
    meterRegistry.counter("nowchess.coordinator.health.checks").increment()
    val evicted = instanceRegistry.evictStaleInstances(config.instanceDeadTimeout)
-    if evicted.nonEmpty then log.warnf("Evicted %d stale instances: %s", evicted.size, evicted.mkString(", "))
+    if evicted.nonEmpty then
+      log.warnf("Evicted %d stale instances: %s", evicted.size, evicted.mkString(", "))
+      evicted.foreach(deleteK8sPod)
    val instances = instanceRegistry.getAllInstances
    instances.foreach { inst =>
      val isHealthy = checkHealth(inst.instanceId)
      if !isHealthy && inst.state == "HEALTHY" then
        log.warnf("Instance %s marked unhealthy", inst.instanceId)
        instanceRegistry.markInstanceDead(inst.instanceId)
+        deleteK8sPod(inst.instanceId)
    }

  private def checkHealth(instanceId: String): Boolean =
@@ -89,10 +119,43 @@ class HealthMonitor:
          true
    }

-  def watchK8sPods: Unit =
+  private def startPodWatch(): Unit =
+    kubeClientOpt match
+      case None => log.debug("K8s client unavailable, skipping pod watch")
+      case Some(kube) =>
+        try
+          kube
+            .pods()
+            .inNamespace(config.k8sNamespace)
+            .withLabel(config.k8sRolloutLabelSelector)
+            .watch(new Watcher[Pod]:
+              override def eventReceived(action: Watcher.Action, pod: Pod): Unit =
+                action match
+                  case Watcher.Action.DELETED =>
+                    handlePodGone(pod)
+                  case Watcher.Action.MODIFIED
+                      if Option(pod.getMetadata.getDeletionTimestamp).isDefined =>
+                    handlePodTerminating(pod)
+                  case _ => ()
+
+              override def onClose(cause: WatcherException): Unit =
+                if cause != null then
+                  log.warnf(cause, "Pod watch closed, restarting")
+                  startPodWatch()
+            )
+          log.info("Pod watch started")
+        catch
+          case ex: Exception => log.warnf(ex, "Failed to start pod watch")
+
+  private def isPodReady(pod: Pod): Boolean =
+    Option(pod.getStatus)
+      .flatMap(s => Option(s.getConditions))
+      .exists(_.asScala.exists(cond => cond.getType == "Ready" && cond.getStatus == "True"))
+
+  private def deleteK8sPod(instanceId: String): Unit =
    kubeClientOpt match
      case None =>
-        log.debug("Kubernetes client not available for pod watch")
+        log.debugf("Kubernetes client not available, skipping pod deletion for %s", instanceId)
      case Some(kube) =>
        try
          val pods = kube
@@ -103,28 +166,59 @@ class HealthMonitor:
            .getItems
            .asScala

-          val instances = instanceRegistry.getAllInstances
-          instances.foreach { inst =>
-            val matchingPod = pods.find { pod =>
-              pod.getMetadata.getName.contains(inst.instanceId)
-            }
-
-            matchingPod match
-              case Some(pod) =>
-                val isReady = isPodReady(pod)
-                if !isReady && inst.state == "HEALTHY" then
-                  meterRegistry.counter("nowchess.coordinator.pods.unhealthy").increment()
-                  log.warnf("Pod %s not ready, marking instance %s dead", pod.getMetadata.getName, inst.instanceId)
-                  instanceRegistry.markInstanceDead(inst.instanceId)
-              case None =>
-                log.warnf("No pod found for instance %s, evicting from registry", inst.instanceId)
-                instanceRegistry.removeInstance(inst.instanceId)
-          }
+          pods.find(pod => pod.getMetadata.getName.contains(instanceId)) match
+            case Some(pod) =>
+              val podName = pod.getMetadata.getName
+              kube.pods().inNamespace(config.k8sNamespace).withName(podName).delete()
+              meterRegistry.counter("nowchess.coordinator.pods.deleted").increment()
+              log.infof("Deleted pod %s for dead instance %s", podName, instanceId)
+            case None =>
+              log.debugf("No pod found for instance %s, skipping deletion", instanceId)
        catch
          case ex: Exception =>
-            log.warnf(ex, "Failed to watch k8s pods")
+            log.warnf(ex, "Failed to delete pod for instance %s", instanceId)

-  private def isPodReady(pod: Pod): Boolean =
-    Option(pod.getStatus)
-      .flatMap(s => Option(s.getConditions))
-      .exists(_.asScala.exists(cond => cond.getType == "Ready" && cond.getStatus == "True"))
+  private def validateStartupInstances(timeoutMs: Long): Unit =
+    Thread.sleep(timeoutMs)
+    instanceRegistry.getAllInstances.foreach { inst =>
+      if !grpcServer.hasActiveStream(inst.instanceId) then
+        log.warnf(
+          "Startup: instance %s did not reconnect within %dms — evicting",
+          inst.instanceId,
+          timeoutMs,
+        )
+        instanceRegistry.removeInstance(inst.instanceId)
+        deleteK8sPod(inst.instanceId)
+    }
+
+  private def handlePodTerminating(pod: Pod): Unit =
+    findRegisteredInstance(pod).foreach { inst =>
+      if inst.state == "HEALTHY" then
+        meterRegistry.counter("nowchess.coordinator.pods.unhealthy").increment()
+        log.warnf(
+          "Pod %s terminating — marking instance %s dead",
+          pod.getMetadata.getName,
+          inst.instanceId,
+        )
+        instanceRegistry.markInstanceDead(inst.instanceId)
+    }
+
+  private def handlePodGone(pod: Pod): Unit =
+    findRegisteredInstance(pod).foreach { inst =>
+      log.warnf(
+        "Pod %s deleted — triggering failover for %s",
+        pod.getMetadata.getName,
+        inst.instanceId,
+      )
+      failoverService
+        .onInstanceStreamDropped(inst.instanceId)
+        .subscribe()
+        .`with`(
+          _ => (),
+          ex => log.warnf(ex, "Failover for %s failed", inst.instanceId),
+        )
+    }
+
+  private def findRegisteredInstance(pod: Pod): Option[InstanceMetadata] =
+    val podName = pod.getMetadata.getName
+    instanceRegistry.getAllInstances.find(inst => podName.contains(inst.instanceId))
@@ -4,6 +4,7 @@ import jakarta.annotation.PostConstruct
 import jakarta.enterprise.context.ApplicationScoped
 import jakarta.inject.Inject
 import io.quarkus.redis.datasource.ReactiveRedisDataSource
+import io.quarkus.redis.datasource.RedisDataSource
 import scala.jdk.CollectionConverters.*
 import scala.compiletime.uninitialized
 import com.fasterxml.jackson.databind.ObjectMapper
@@ -19,7 +20,10 @@ class InstanceRegistry:
  // scalafix:off DisableSyntax.var
  @Inject
  private var redis: ReactiveRedisDataSource = uninitialized
-  private var redisPrefix                    = "nowchess"
+
+  @Inject
+  private var syncRedis: RedisDataSource = uninitialized
+  private var redisPrefix                = "nowchess"

  @Inject
  private var meterRegistry: MeterRegistry = uninitialized
@@ -34,11 +38,29 @@ class InstanceRegistry:
    Gauge
      .builder("nowchess.coordinator.instances.active", instances, m => m.size().toDouble)
      .register(meterRegistry)
+    meterRegistry.counter("nowchess.coordinator.instances.joined").increment(0)
+    meterRegistry.counter("nowchess.coordinator.instances.removed").increment(0)
+    meterRegistry.counter("nowchess.coordinator.instances.evicted").increment(0)
    ()

  def setRedisPrefix(prefix: String): Unit =
    redisPrefix = prefix

+  def loadAllFromRedis(): Unit =
+    val keys = syncRedis.key(classOf[String]).keys(s"$redisPrefix:instances:*")
+    keys.asScala.foreach { key =>
+      val instanceId = key.stripPrefix(s"$redisPrefix:instances:")
+      val json       = syncRedis.value(classOf[String]).get(key)
+      if json != null then
+        try
+          val metadata = mapper.readValue(json, classOf[InstanceMetadata])
+          instances.put(instanceId, metadata)
+          log.infof("Startup: loaded instance %s from Redis", instanceId)
+        catch
+          case ex: Exception =>
+            log.warnf(ex, "Startup: failed to parse instance %s", instanceId)
+    }
+
  def getInstance(instanceId: String): Option[InstanceMetadata] =
    Option(instances.get(instanceId))

@@ -1,3 +1,3 @@
 MAJOR=0
-MINOR=16
+MINOR=18
 PATCH=0
@@ -935,3 +935,263 @@
 * **redis:** update Redis configuration with max pool size and waiting parameters ([5baf6a7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5baf6a7cdbea484fc49c02e2b5a1c3919b7fa2c4))
 * update main class path in build configuration and adjust VCS directory mapping ([7b1f8b1](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/7b1f8b117623d327232a1a92a8a44d18582e0189))
 * update move validation to check for king safety ([#13](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/13)) ([e5e20c5](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/e5e20c566e368b12ca1dc59680c34e9112bf6762))
+##  (2026-05-11)
+
+### Features
+
+* add GameRules stub with PositionStatus enum ([76d4168](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/76d4168038de23e5d6083d4e8f0504fbf31d15a3))
+* add initialization metrics for various services ([d438e97](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d438e97f32bdde0bfc63c1b4a8cc810cdd093166))
+* add MovedInCheck/Checkmate/Stalemate MoveResult variants (stub dispatch) ([8b7ec57](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/8b7ec57e5ea6ee1615a1883848a426dc07d26364))
+* **config:** update application.yml for PostgreSQL and remove staging/production configurations ([2404e61](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2404e6164c3b50ffccbea5238d636060d6abe4d6))
+* **config:** update application.yml for staging and production environments ([6113432](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6113432a14c476a3a0dfc0d449e17d023697f2ba))
+* configure logging and add OpenTelemetry support ([#49](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/49)) ([d57c488](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d57c4886612d1d92da0e1b79209fc83e6ef537a1))
+* implement GameRules with isInCheck, legalMoves, gameStatus ([94a02ff](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/94a02ff6849436d9496c70a0f16c21666dae8e4e))
+* implement legal castling ([#1](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/1)) ([00d326c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/00d326c1ba67711fbe180f04e1100c3f01dd0254))
+* **logging:** add DEBUG/INFO/WARN logging across services (NCS-72) ([#41](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/41)) ([804a4bf](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/804a4bf179e3dfb19e2be4390e7e543caf5237c6))
+* NCS-10 Implement Pawn Promotion ([#12](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/12)) ([13bfc16](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/13bfc16cfe25db78ec607db523ca6d993c13430c))
+* NCS-11 50-move rule ([#9](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/9)) ([412ed98](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/412ed986a95703a3b282276540153480ceed229d))
+* NCS-13 Implement Threefold Repetition ([#31](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/31)) ([767d305](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/767d3051a76c266050b6335774d66e2db2273c16))
+* NCS-14 implemented insufficient moves rule ([#30](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/30)) ([b0399a4](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b0399a4e489950083066c9538df9a84dcc7a4613))
+* NCS-16 Core Separation via Patterns ([#10](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/10)) ([1361dfc](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/1361dfc89553b146864fb8ff3526cf12cf3f293a))
+* NCS-17 Implement basic ScalaFX UI ([#14](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/14)) ([3ff8031](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3ff80318b4f16c59733a46498581a5c27f048287))
+* NCS-21 Write Scripts to automate certain tasks ([#15](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/15)) ([8051871](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/80518719d536a087d339fe02530825dc07f8b388))
+* NCS-25 Add linters to keep quality up ([#27](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/27)) ([fd4e67d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/fd4e67d4f782a7e955822d90cb909d0a81676fb2))
+* NCS-37 Quarkus integration ([#35](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/35)) ([f088c4e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/f088c4e9ffcc498d3d1b6f01e8f50042d5830d55))
+* NCS-40 Rework Draw System ([#34](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/34)) ([33e785d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/33e785d22af87724839b62ae91dfe74a05b398c3))
+* NCS-41 Bot Platform ([#33](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/33)) ([8744bee](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/8744bee2dd20966dae90a09c21a43d5b06f59e00))
+* NCS-53 changed IO to MicroService for easier scaling ([#37](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/37)) ([b5a2966](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b5a2966adafa9650f0f7d601bdeb8fdd13710327))
+* NCS-6 Implementing FEN & PGN ([#7](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/7)) ([f28e69d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/f28e69dc181416aa2f221fdc4b45c2cda5efbf07))
+* NCS-78 Add Traceability to the Applications ([#48](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/48)) ([c96a09b](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c96a09bb5cee59fc23205bb63baa8b217a7e1b00))
+* NCS-9 En passant implementation ([#8](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/8)) ([919beb3](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/919beb3b4bfa8caf2f90976a415fe9b19b7e9747))
+* **rule:** Rules as a microservice ([#39](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/39)) ([093134d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/093134d36c6844ba02a36a28d5d044f09291cd1d))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+* wire check/checkmate/stalemate into processMove and gameLoop ([5264a22](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5264a225418b885c5e6ea6411b96f85e38837f6c))
+
+### Bug Fixes
+
+* add missing kings to gameLoop capture test board ([aedd787](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/aedd787b77203c2af934751dba7b784eaf165032))
+* **auth:** change InternalAuthFilter to use @Singleton and add HTTP tests for secret validation ([c08d530](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c08d5303eb9e70d36c8eebf6a061ccb71e118fe5))
+* **auth:** update InternalAuthFilter to use @ApplicationScoped and add index-dependency configuration ([6e0fd95](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6e0fd9523e001756ce7109e639ebb54be4fcdabf))
+* correct test board positions and captureOutput/withInput interaction ([f0481e2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/f0481e2561b779df00925b46ee281dc36a795150))
+* **heartbeat:** inject ObjectMapper into InstanceHeartbeatService ([#42](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/42)) ([0c98151](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/0c981517da1f94cd10ae396e47bde2b35d0b3ba0))
+* IO microservice ([#38](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/38)) ([a386f57](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/a386f57c21d34ead6cc6f92836c52b714597e289))
+* Lints ([dc224ab](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/dc224abe26acf5361c56956006e1cc51b75b0b7e))
+* **redis:** add max pool wait time and switch to ReactiveRedisDataSource for heartbeat updates ([33e5017](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/33e5017f51a998327b180f778f73964cc10c05d3))
+* **redis:** enhance GameRedisSubscriberManager to use ReactiveRedisDataSource and improve subscription handling ([0eb752d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/0eb752d4935377f75aab710b7f4eda4b29098e6a))
+* **redis:** prevent concurrent Redis heartbeat refreshes using AtomicBoolean ([847b132](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/847b13202cb909d18ca3304c27ebe17ce2312b8e))
+* **redis:** simplify refreshRedisHeartbeat logic and ensure proper error handling ([1813ea1](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/1813ea1d2d5d093f7925f87371b5e29820bf1136))
+* **redis:** update Redis configuration with max pool size and waiting parameters ([5baf6a7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5baf6a7cdbea484fc49c02e2b5a1c3919b7fa2c4))
+* update main class path in build configuration and adjust VCS directory mapping ([7b1f8b1](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/7b1f8b117623d327232a1a92a8a44d18582e0189))
+* update move validation to check for king safety ([#13](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/13)) ([e5e20c5](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/e5e20c566e368b12ca1dc59680c34e9112bf6762))
+##  (2026-05-12)
+
+### Features
+
+* add GameRules stub with PositionStatus enum ([76d4168](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/76d4168038de23e5d6083d4e8f0504fbf31d15a3))
+* add initialization metrics for various services ([d438e97](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d438e97f32bdde0bfc63c1b4a8cc810cdd093166))
+* add MovedInCheck/Checkmate/Stalemate MoveResult variants (stub dispatch) ([8b7ec57](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/8b7ec57e5ea6ee1615a1883848a426dc07d26364))
+* add OpenTelemetry trace configuration with parentbased sampler ([3904d5a](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3904d5ad8ad4930ddee65287a7bfab785a6148f5))
+* **config:** update application.yml for PostgreSQL and remove staging/production configurations ([2404e61](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2404e6164c3b50ffccbea5238d636060d6abe4d6))
+* **config:** update application.yml for staging and production environments ([6113432](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6113432a14c476a3a0dfc0d449e17d023697f2ba))
+* configure logging and add OpenTelemetry support ([#49](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/49)) ([d57c488](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d57c4886612d1d92da0e1b79209fc83e6ef537a1))
+* implement GameRules with isInCheck, legalMoves, gameStatus ([94a02ff](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/94a02ff6849436d9496c70a0f16c21666dae8e4e))
+* implement legal castling ([#1](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/1)) ([00d326c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/00d326c1ba67711fbe180f04e1100c3f01dd0254))
+* **logging:** add DEBUG/INFO/WARN logging across services (NCS-72) ([#41](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/41)) ([804a4bf](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/804a4bf179e3dfb19e2be4390e7e543caf5237c6))
+* NCS-10 Implement Pawn Promotion ([#12](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/12)) ([13bfc16](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/13bfc16cfe25db78ec607db523ca6d993c13430c))
+* NCS-11 50-move rule ([#9](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/9)) ([412ed98](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/412ed986a95703a3b282276540153480ceed229d))
+* NCS-13 Implement Threefold Repetition ([#31](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/31)) ([767d305](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/767d3051a76c266050b6335774d66e2db2273c16))
+* NCS-14 implemented insufficient moves rule ([#30](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/30)) ([b0399a4](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b0399a4e489950083066c9538df9a84dcc7a4613))
+* NCS-16 Core Separation via Patterns ([#10](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/10)) ([1361dfc](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/1361dfc89553b146864fb8ff3526cf12cf3f293a))
+* NCS-17 Implement basic ScalaFX UI ([#14](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/14)) ([3ff8031](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3ff80318b4f16c59733a46498581a5c27f048287))
+* NCS-21 Write Scripts to automate certain tasks ([#15](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/15)) ([8051871](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/80518719d536a087d339fe02530825dc07f8b388))
+* NCS-25 Add linters to keep quality up ([#27](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/27)) ([fd4e67d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/fd4e67d4f782a7e955822d90cb909d0a81676fb2))
+* NCS-37 Quarkus integration ([#35](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/35)) ([f088c4e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/f088c4e9ffcc498d3d1b6f01e8f50042d5830d55))
+* NCS-40 Rework Draw System ([#34](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/34)) ([33e785d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/33e785d22af87724839b62ae91dfe74a05b398c3))
+* NCS-41 Bot Platform ([#33](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/33)) ([8744bee](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/8744bee2dd20966dae90a09c21a43d5b06f59e00))
+* NCS-53 changed IO to MicroService for easier scaling ([#37](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/37)) ([b5a2966](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b5a2966adafa9650f0f7d601bdeb8fdd13710327))
+* NCS-6 Implementing FEN & PGN ([#7](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/7)) ([f28e69d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/f28e69dc181416aa2f221fdc4b45c2cda5efbf07))
+* NCS-78 Add Traceability to the Applications ([#48](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/48)) ([c96a09b](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c96a09bb5cee59fc23205bb63baa8b217a7e1b00))
+* NCS-9 En passant implementation ([#8](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/8)) ([919beb3](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/919beb3b4bfa8caf2f90976a415fe9b19b7e9747))
+* **rule:** Rules as a microservice ([#39](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/39)) ([093134d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/093134d36c6844ba02a36a28d5d044f09291cd1d))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+* wire check/checkmate/stalemate into processMove and gameLoop ([5264a22](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5264a225418b885c5e6ea6411b96f85e38837f6c))
+
+### Bug Fixes
+
+* add missing kings to gameLoop capture test board ([aedd787](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/aedd787b77203c2af934751dba7b784eaf165032))
+* **auth:** change InternalAuthFilter to use @Singleton and add HTTP tests for secret validation ([c08d530](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c08d5303eb9e70d36c8eebf6a061ccb71e118fe5))
+* **auth:** update InternalAuthFilter to use @ApplicationScoped and add index-dependency configuration ([6e0fd95](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6e0fd9523e001756ce7109e639ebb54be4fcdabf))
+* correct test board positions and captureOutput/withInput interaction ([f0481e2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/f0481e2561b779df00925b46ee281dc36a795150))
+* **heartbeat:** inject ObjectMapper into InstanceHeartbeatService ([#42](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/42)) ([0c98151](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/0c981517da1f94cd10ae396e47bde2b35d0b3ba0))
+* IO microservice ([#38](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/38)) ([a386f57](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/a386f57c21d34ead6cc6f92836c52b714597e289))
+* Lints ([dc224ab](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/dc224abe26acf5361c56956006e1cc51b75b0b7e))
+* **redis:** add max pool wait time and switch to ReactiveRedisDataSource for heartbeat updates ([33e5017](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/33e5017f51a998327b180f778f73964cc10c05d3))
+* **redis:** enhance GameRedisSubscriberManager to use ReactiveRedisDataSource and improve subscription handling ([0eb752d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/0eb752d4935377f75aab710b7f4eda4b29098e6a))
+* **redis:** prevent concurrent Redis heartbeat refreshes using AtomicBoolean ([847b132](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/847b13202cb909d18ca3304c27ebe17ce2312b8e))
+* **redis:** simplify refreshRedisHeartbeat logic and ensure proper error handling ([1813ea1](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/1813ea1d2d5d093f7925f87371b5e29820bf1136))
+* **redis:** update Redis configuration with max pool size and waiting parameters ([5baf6a7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5baf6a7cdbea484fc49c02e2b5a1c3919b7fa2c4))
+* update main class path in build configuration and adjust VCS directory mapping ([7b1f8b1](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/7b1f8b117623d327232a1a92a8a44d18582e0189))
+* update move validation to check for king safety ([#13](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/13)) ([e5e20c5](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/e5e20c566e368b12ca1dc59680c34e9112bf6762))
+##  (2026-05-12)
+
+### Features
+
+* add authentication permissions for metrics endpoints in application.yml ([04edd4d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/04edd4d6fd8a63196c36f6d67992832febc9bebb))
+* add GameRules stub with PositionStatus enum ([76d4168](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/76d4168038de23e5d6083d4e8f0504fbf31d15a3))
+* add initialization metrics for various services ([d438e97](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d438e97f32bdde0bfc63c1b4a8cc810cdd093166))
+* add MovedInCheck/Checkmate/Stalemate MoveResult variants (stub dispatch) ([8b7ec57](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/8b7ec57e5ea6ee1615a1883848a426dc07d26364))
+* add OpenTelemetry trace configuration with parentbased sampler ([3904d5a](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3904d5ad8ad4930ddee65287a7bfab785a6148f5))
+* **config:** update application.yml for PostgreSQL and remove staging/production configurations ([2404e61](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2404e6164c3b50ffccbea5238d636060d6abe4d6))
+* **config:** update application.yml for staging and production environments ([6113432](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6113432a14c476a3a0dfc0d449e17d023697f2ba))
+* configure logging and add OpenTelemetry support ([#49](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/49)) ([d57c488](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d57c4886612d1d92da0e1b79209fc83e6ef537a1))
+* implement GameRules with isInCheck, legalMoves, gameStatus ([94a02ff](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/94a02ff6849436d9496c70a0f16c21666dae8e4e))
+* implement legal castling ([#1](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/1)) ([00d326c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/00d326c1ba67711fbe180f04e1100c3f01dd0254))
+* **logging:** add DEBUG/INFO/WARN logging across services (NCS-72) ([#41](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/41)) ([804a4bf](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/804a4bf179e3dfb19e2be4390e7e543caf5237c6))
+* NCS-10 Implement Pawn Promotion ([#12](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/12)) ([13bfc16](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/13bfc16cfe25db78ec607db523ca6d993c13430c))
+* NCS-11 50-move rule ([#9](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/9)) ([412ed98](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/412ed986a95703a3b282276540153480ceed229d))
+* NCS-13 Implement Threefold Repetition ([#31](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/31)) ([767d305](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/767d3051a76c266050b6335774d66e2db2273c16))
+* NCS-14 implemented insufficient moves rule ([#30](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/30)) ([b0399a4](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b0399a4e489950083066c9538df9a84dcc7a4613))
+* NCS-16 Core Separation via Patterns ([#10](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/10)) ([1361dfc](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/1361dfc89553b146864fb8ff3526cf12cf3f293a))
+* NCS-17 Implement basic ScalaFX UI ([#14](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/14)) ([3ff8031](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3ff80318b4f16c59733a46498581a5c27f048287))
+* NCS-21 Write Scripts to automate certain tasks ([#15](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/15)) ([8051871](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/80518719d536a087d339fe02530825dc07f8b388))
+* NCS-25 Add linters to keep quality up ([#27](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/27)) ([fd4e67d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/fd4e67d4f782a7e955822d90cb909d0a81676fb2))
+* NCS-37 Quarkus integration ([#35](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/35)) ([f088c4e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/f088c4e9ffcc498d3d1b6f01e8f50042d5830d55))
+* NCS-40 Rework Draw System ([#34](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/34)) ([33e785d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/33e785d22af87724839b62ae91dfe74a05b398c3))
+* NCS-41 Bot Platform ([#33](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/33)) ([8744bee](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/8744bee2dd20966dae90a09c21a43d5b06f59e00))
+* NCS-53 changed IO to MicroService for easier scaling ([#37](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/37)) ([b5a2966](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b5a2966adafa9650f0f7d601bdeb8fdd13710327))
+* NCS-6 Implementing FEN & PGN ([#7](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/7)) ([f28e69d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/f28e69dc181416aa2f221fdc4b45c2cda5efbf07))
+* NCS-78 Add Traceability to the Applications ([#48](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/48)) ([c96a09b](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c96a09bb5cee59fc23205bb63baa8b217a7e1b00))
+* NCS-9 En passant implementation ([#8](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/8)) ([919beb3](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/919beb3b4bfa8caf2f90976a415fe9b19b7e9747))
+* **rule:** Rules as a microservice ([#39](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/39)) ([093134d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/093134d36c6844ba02a36a28d5d044f09291cd1d))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+* wire check/checkmate/stalemate into processMove and gameLoop ([5264a22](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5264a225418b885c5e6ea6411b96f85e38837f6c))
+
+### Bug Fixes
+
+* add missing kings to gameLoop capture test board ([aedd787](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/aedd787b77203c2af934751dba7b784eaf165032))
+* **auth:** change InternalAuthFilter to use @Singleton and add HTTP tests for secret validation ([c08d530](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c08d5303eb9e70d36c8eebf6a061ccb71e118fe5))
+* **auth:** update InternalAuthFilter to use @ApplicationScoped and add index-dependency configuration ([6e0fd95](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6e0fd9523e001756ce7109e639ebb54be4fcdabf))
+* correct test board positions and captureOutput/withInput interaction ([f0481e2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/f0481e2561b779df00925b46ee281dc36a795150))
+* **heartbeat:** inject ObjectMapper into InstanceHeartbeatService ([#42](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/42)) ([0c98151](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/0c981517da1f94cd10ae396e47bde2b35d0b3ba0))
+* IO microservice ([#38](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/38)) ([a386f57](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/a386f57c21d34ead6cc6f92836c52b714597e289))
+* Lints ([dc224ab](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/dc224abe26acf5361c56956006e1cc51b75b0b7e))
+* **redis:** add max pool wait time and switch to ReactiveRedisDataSource for heartbeat updates ([33e5017](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/33e5017f51a998327b180f778f73964cc10c05d3))
+* **redis:** enhance GameRedisSubscriberManager to use ReactiveRedisDataSource and improve subscription handling ([0eb752d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/0eb752d4935377f75aab710b7f4eda4b29098e6a))
+* **redis:** prevent concurrent Redis heartbeat refreshes using AtomicBoolean ([847b132](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/847b13202cb909d18ca3304c27ebe17ce2312b8e))
+* **redis:** simplify refreshRedisHeartbeat logic and ensure proper error handling ([1813ea1](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/1813ea1d2d5d093f7925f87371b5e29820bf1136))
+* **redis:** update Redis configuration with max pool size and waiting parameters ([5baf6a7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5baf6a7cdbea484fc49c02e2b5a1c3919b7fa2c4))
+* update main class path in build configuration and adjust VCS directory mapping ([7b1f8b1](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/7b1f8b117623d327232a1a92a8a44d18582e0189))
+* update move validation to check for king safety ([#13](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/13)) ([e5e20c5](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/e5e20c566e368b12ca1dc59680c34e9112bf6762))
+##  (2026-05-12)
+
+### Features
+
+* add authentication permissions for metrics endpoints in application.yml ([04edd4d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/04edd4d6fd8a63196c36f6d67992832febc9bebb))
+* add GameRules stub with PositionStatus enum ([76d4168](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/76d4168038de23e5d6083d4e8f0504fbf31d15a3))
+* add initialization metrics for various services ([d438e97](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d438e97f32bdde0bfc63c1b4a8cc810cdd093166))
+* add MovedInCheck/Checkmate/Stalemate MoveResult variants (stub dispatch) ([8b7ec57](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/8b7ec57e5ea6ee1615a1883848a426dc07d26364))
+* add OpenTelemetry trace configuration with parentbased sampler ([3904d5a](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3904d5ad8ad4930ddee65287a7bfab785a6148f5))
+* **config:** update application.yml for PostgreSQL and remove staging/production configurations ([2404e61](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2404e6164c3b50ffccbea5238d636060d6abe4d6))
+* **config:** update application.yml for staging and production environments ([6113432](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6113432a14c476a3a0dfc0d449e17d023697f2ba))
+* configure logging and add OpenTelemetry support ([#49](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/49)) ([d57c488](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d57c4886612d1d92da0e1b79209fc83e6ef537a1))
+* implement GameRules with isInCheck, legalMoves, gameStatus ([94a02ff](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/94a02ff6849436d9496c70a0f16c21666dae8e4e))
+* implement legal castling ([#1](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/1)) ([00d326c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/00d326c1ba67711fbe180f04e1100c3f01dd0254))
+* **logging:** add DEBUG/INFO/WARN logging across services (NCS-72) ([#41](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/41)) ([804a4bf](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/804a4bf179e3dfb19e2be4390e7e543caf5237c6))
+* NCS-10 Implement Pawn Promotion ([#12](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/12)) ([13bfc16](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/13bfc16cfe25db78ec607db523ca6d993c13430c))
+* NCS-11 50-move rule ([#9](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/9)) ([412ed98](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/412ed986a95703a3b282276540153480ceed229d))
+* NCS-13 Implement Threefold Repetition ([#31](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/31)) ([767d305](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/767d3051a76c266050b6335774d66e2db2273c16))
+* NCS-14 implemented insufficient moves rule ([#30](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/30)) ([b0399a4](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b0399a4e489950083066c9538df9a84dcc7a4613))
+* NCS-16 Core Separation via Patterns ([#10](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/10)) ([1361dfc](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/1361dfc89553b146864fb8ff3526cf12cf3f293a))
+* NCS-17 Implement basic ScalaFX UI ([#14](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/14)) ([3ff8031](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3ff80318b4f16c59733a46498581a5c27f048287))
+* NCS-21 Write Scripts to automate certain tasks ([#15](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/15)) ([8051871](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/80518719d536a087d339fe02530825dc07f8b388))
+* NCS-25 Add linters to keep quality up ([#27](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/27)) ([fd4e67d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/fd4e67d4f782a7e955822d90cb909d0a81676fb2))
+* NCS-37 Quarkus integration ([#35](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/35)) ([f088c4e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/f088c4e9ffcc498d3d1b6f01e8f50042d5830d55))
+* NCS-40 Rework Draw System ([#34](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/34)) ([33e785d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/33e785d22af87724839b62ae91dfe74a05b398c3))
+* NCS-41 Bot Platform ([#33](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/33)) ([8744bee](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/8744bee2dd20966dae90a09c21a43d5b06f59e00))
+* NCS-53 changed IO to MicroService for easier scaling ([#37](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/37)) ([b5a2966](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b5a2966adafa9650f0f7d601bdeb8fdd13710327))
+* NCS-6 Implementing FEN & PGN ([#7](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/7)) ([f28e69d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/f28e69dc181416aa2f221fdc4b45c2cda5efbf07))
+* NCS-78 Add Traceability to the Applications ([#48](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/48)) ([c96a09b](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c96a09bb5cee59fc23205bb63baa8b217a7e1b00))
+* NCS-9 En passant implementation ([#8](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/8)) ([919beb3](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/919beb3b4bfa8caf2f90976a415fe9b19b7e9747))
+* **rule:** Rules as a microservice ([#39](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/39)) ([093134d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/093134d36c6844ba02a36a28d5d044f09291cd1d))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+* update application.yml with new API root paths and add Micrometer and OpenTelemetry dependencies ([72ce262](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/72ce262bc491f94297700e6002fb5d0812e2cc2a))
+* wire check/checkmate/stalemate into processMove and gameLoop ([5264a22](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5264a225418b885c5e6ea6411b96f85e38837f6c))
+
+### Bug Fixes
+
+* add missing kings to gameLoop capture test board ([aedd787](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/aedd787b77203c2af934751dba7b784eaf165032))
+* **auth:** change InternalAuthFilter to use @Singleton and add HTTP tests for secret validation ([c08d530](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c08d5303eb9e70d36c8eebf6a061ccb71e118fe5))
+* **auth:** update InternalAuthFilter to use @ApplicationScoped and add index-dependency configuration ([6e0fd95](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6e0fd9523e001756ce7109e639ebb54be4fcdabf))
+* correct test board positions and captureOutput/withInput interaction ([f0481e2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/f0481e2561b779df00925b46ee281dc36a795150))
+* **heartbeat:** inject ObjectMapper into InstanceHeartbeatService ([#42](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/42)) ([0c98151](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/0c981517da1f94cd10ae396e47bde2b35d0b3ba0))
+* IO microservice ([#38](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/38)) ([a386f57](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/a386f57c21d34ead6cc6f92836c52b714597e289))
+* Lints ([dc224ab](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/dc224abe26acf5361c56956006e1cc51b75b0b7e))
+* **redis:** add max pool wait time and switch to ReactiveRedisDataSource for heartbeat updates ([33e5017](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/33e5017f51a998327b180f778f73964cc10c05d3))
+* **redis:** enhance GameRedisSubscriberManager to use ReactiveRedisDataSource and improve subscription handling ([0eb752d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/0eb752d4935377f75aab710b7f4eda4b29098e6a))
+* **redis:** prevent concurrent Redis heartbeat refreshes using AtomicBoolean ([847b132](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/847b13202cb909d18ca3304c27ebe17ce2312b8e))
+* **redis:** simplify refreshRedisHeartbeat logic and ensure proper error handling ([1813ea1](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/1813ea1d2d5d093f7925f87371b5e29820bf1136))
+* **redis:** update Redis configuration with max pool size and waiting parameters ([5baf6a7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5baf6a7cdbea484fc49c02e2b5a1c3919b7fa2c4))
+* update main class path in build configuration and adjust VCS directory mapping ([7b1f8b1](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/7b1f8b117623d327232a1a92a8a44d18582e0189))
+* update move validation to check for king safety ([#13](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/13)) ([e5e20c5](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/e5e20c566e368b12ca1dc59680c34e9112bf6762))
+
+### Reverts
+
+* Revert "feat: add authentication permissions for metrics endpoints in application.yml" ([a298417](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/a298417b9e4d68dc73bbf40be63d9484536e9f83))
+* Revert "refactor: update metrics paths formatting in application.yml for clarity" ([3870566](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/38705663498d5f47c40dafe2f26198589ede8656))
+##  (2026-05-13)
+
+### Features
+
+* add authentication permissions for metrics endpoints in application.yml ([04edd4d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/04edd4d6fd8a63196c36f6d67992832febc9bebb))
+* add CORS configuration and reorder JWT settings in application.yml ([a49f9be](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/a49f9be146f04c14561c305d980846a92f8c12b2))
+* add GameRules stub with PositionStatus enum ([76d4168](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/76d4168038de23e5d6083d4e8f0504fbf31d15a3))
+* add initialization metrics for various services ([d438e97](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d438e97f32bdde0bfc63c1b4a8cc810cdd093166))
+* add MovedInCheck/Checkmate/Stalemate MoveResult variants (stub dispatch) ([8b7ec57](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/8b7ec57e5ea6ee1615a1883848a426dc07d26364))
+* add OpenTelemetry trace configuration with parentbased sampler ([3904d5a](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3904d5ad8ad4930ddee65287a7bfab785a6148f5))
+* **config:** update application.yml for PostgreSQL and remove staging/production configurations ([2404e61](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2404e6164c3b50ffccbea5238d636060d6abe4d6))
+* **config:** update application.yml for staging and production environments ([6113432](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6113432a14c476a3a0dfc0d449e17d023697f2ba))
+* configure logging and add OpenTelemetry support ([#49](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/49)) ([d57c488](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d57c4886612d1d92da0e1b79209fc83e6ef537a1))
+* implement GameRules with isInCheck, legalMoves, gameStatus ([94a02ff](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/94a02ff6849436d9496c70a0f16c21666dae8e4e))
+* implement legal castling ([#1](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/1)) ([00d326c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/00d326c1ba67711fbe180f04e1100c3f01dd0254))
+* **logging:** add DEBUG/INFO/WARN logging across services (NCS-72) ([#41](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/41)) ([804a4bf](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/804a4bf179e3dfb19e2be4390e7e543caf5237c6))
+* NCS-10 Implement Pawn Promotion ([#12](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/12)) ([13bfc16](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/13bfc16cfe25db78ec607db523ca6d993c13430c))
+* NCS-11 50-move rule ([#9](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/9)) ([412ed98](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/412ed986a95703a3b282276540153480ceed229d))
+* NCS-13 Implement Threefold Repetition ([#31](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/31)) ([767d305](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/767d3051a76c266050b6335774d66e2db2273c16))
+* NCS-14 implemented insufficient moves rule ([#30](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/30)) ([b0399a4](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b0399a4e489950083066c9538df9a84dcc7a4613))
+* NCS-16 Core Separation via Patterns ([#10](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/10)) ([1361dfc](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/1361dfc89553b146864fb8ff3526cf12cf3f293a))
+* NCS-17 Implement basic ScalaFX UI ([#14](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/14)) ([3ff8031](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3ff80318b4f16c59733a46498581a5c27f048287))
+* NCS-21 Write Scripts to automate certain tasks ([#15](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/15)) ([8051871](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/80518719d536a087d339fe02530825dc07f8b388))
+* NCS-25 Add linters to keep quality up ([#27](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/27)) ([fd4e67d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/fd4e67d4f782a7e955822d90cb909d0a81676fb2))
+* NCS-37 Quarkus integration ([#35](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/35)) ([f088c4e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/f088c4e9ffcc498d3d1b6f01e8f50042d5830d55))
+* NCS-40 Rework Draw System ([#34](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/34)) ([33e785d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/33e785d22af87724839b62ae91dfe74a05b398c3))
+* NCS-41 Bot Platform ([#33](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/33)) ([8744bee](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/8744bee2dd20966dae90a09c21a43d5b06f59e00))
+* NCS-53 changed IO to MicroService for easier scaling ([#37](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/37)) ([b5a2966](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b5a2966adafa9650f0f7d601bdeb8fdd13710327))
+* NCS-6 Implementing FEN & PGN ([#7](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/7)) ([f28e69d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/f28e69dc181416aa2f221fdc4b45c2cda5efbf07))
+* NCS-78 Add Traceability to the Applications ([#48](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/48)) ([c96a09b](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c96a09bb5cee59fc23205bb63baa8b217a7e1b00))
+* NCS-9 En passant implementation ([#8](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/8)) ([919beb3](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/919beb3b4bfa8caf2f90976a415fe9b19b7e9747))
+* **rule:** Rules as a microservice ([#39](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/39)) ([093134d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/093134d36c6844ba02a36a28d5d044f09291cd1d))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+* update application.yml with new API root paths and add Micrometer and OpenTelemetry dependencies ([72ce262](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/72ce262bc491f94297700e6002fb5d0812e2cc2a))
+* wire check/checkmate/stalemate into processMove and gameLoop ([5264a22](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5264a225418b885c5e6ea6411b96f85e38837f6c))
+
+### Bug Fixes
+
+* add missing kings to gameLoop capture test board ([aedd787](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/aedd787b77203c2af934751dba7b784eaf165032))
+* **auth:** change InternalAuthFilter to use @Singleton and add HTTP tests for secret validation ([c08d530](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c08d5303eb9e70d36c8eebf6a061ccb71e118fe5))
+* **auth:** update InternalAuthFilter to use @ApplicationScoped and add index-dependency configuration ([6e0fd95](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6e0fd9523e001756ce7109e639ebb54be4fcdabf))
+* correct test board positions and captureOutput/withInput interaction ([f0481e2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/f0481e2561b779df00925b46ee281dc36a795150))
+* **heartbeat:** inject ObjectMapper into InstanceHeartbeatService ([#42](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/42)) ([0c98151](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/0c981517da1f94cd10ae396e47bde2b35d0b3ba0))
+* IO microservice ([#38](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/38)) ([a386f57](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/a386f57c21d34ead6cc6f92836c52b714597e289))
+* Lints ([dc224ab](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/dc224abe26acf5361c56956006e1cc51b75b0b7e))
+* **redis:** add max pool wait time and switch to ReactiveRedisDataSource for heartbeat updates ([33e5017](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/33e5017f51a998327b180f778f73964cc10c05d3))
+* **redis:** enhance GameRedisSubscriberManager to use ReactiveRedisDataSource and improve subscription handling ([0eb752d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/0eb752d4935377f75aab710b7f4eda4b29098e6a))
+* **redis:** prevent concurrent Redis heartbeat refreshes using AtomicBoolean ([847b132](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/847b13202cb909d18ca3304c27ebe17ce2312b8e))
+* **redis:** simplify refreshRedisHeartbeat logic and ensure proper error handling ([1813ea1](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/1813ea1d2d5d093f7925f87371b5e29820bf1136))
+* **redis:** update Redis configuration with max pool size and waiting parameters ([5baf6a7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5baf6a7cdbea484fc49c02e2b5a1c3919b7fa2c4))
+* update main class path in build configuration and adjust VCS directory mapping ([7b1f8b1](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/7b1f8b117623d327232a1a92a8a44d18582e0189))
+* update move validation to check for king safety ([#13](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/13)) ([e5e20c5](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/e5e20c566e368b12ca1dc59680c34e9112bf6762))
+
+### Reverts
+
+* Revert "feat: add authentication permissions for metrics endpoints in application.yml" ([a298417](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/a298417b9e4d68dc73bbf40be63d9484536e9f83))
+* Revert "refactor: update metrics paths formatting in application.yml for clarity" ([3870566](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/38705663498d5f47c40dafe2f26198589ede8656))
@@ -73,27 +73,24 @@ nowchess:
        url: http://localhost:8085

 "%deployed":
-  quarkus:
-    log:
-      console:
-        json: true
-    otel:
-      exporter:
-        otlp:
-          endpoint: ${OTEL_EXPORTER_OTLP_ENDPOINT:http://localhost:4317}
-  mp:
-    jwt:
-      verify:
-        publickey:
-          location: ${JWT_PUBLIC_KEY_PATH:keys/public.pem}
-        issuer: nowchess
  quarkus:
    http:
+      root-path: /api
      cors:
        ~: true
        origins: ${CORS_ORIGINS}
        methods: GET,POST,PUT,DELETE,OPTIONS
        headers: Content-Type,Accept,Authorization
+    log:
+      console:
+        json: true
+    otel:
+      traces:
+        sampler: parentbased_traceidratio
+        sampler-arg: 0.1
+      exporter:
+        otlp:
+          endpoint: ${OTEL_EXPORTER_OTLP_ENDPOINT:http://localhost:4317}
    grpc:
      clients:
        rule-grpc:
@@ -112,6 +109,12 @@ nowchess:
        url: ${RULE_SERVICE_URL}
      store-service:
        url: ${STORE_SERVICE_URL}
+  mp:
+    jwt:
+      verify:
+        publickey:
+          location: ${JWT_PUBLIC_KEY_PATH:keys/public.pem}
+        issuer: nowchess
  nowchess:
    redis:
      host: ${REDIS_HOST}
@@ -48,6 +48,21 @@ class RedisGameRegistry extends GameRegistry:
    Gauge
      .builder("nowchess.games.active", GameEngine.activeGamesCount, _.get().toDouble)
      .register(meterRegistry)
+    meterRegistry.counter("nowchess.games.cache.hits", "source", "local").increment(0)
+    meterRegistry.counter("nowchess.games.cache.hits", "source", "redis").increment(0)
+    meterRegistry.counter("nowchess.games.cache.hits", "source", "db").increment(0)
+    meterRegistry.counter("nowchess.games.cache.misses").increment(0)
+    meterRegistry.counter("nowchess.games.started").increment(0)
+    meterRegistry.counter("nowchess.games.completed", "result", "checkmate").increment(0)
+    meterRegistry.counter("nowchess.games.completed", "result", "draw.agreement").increment(0)
+    meterRegistry.counter("nowchess.games.completed", "result", "draw.fifty_move").increment(0)
+    meterRegistry.counter("nowchess.games.completed", "result", "draw.threefold").increment(0)
+    meterRegistry.counter("nowchess.games.completed", "result", "draw.stalemate").increment(0)
+    meterRegistry.counter("nowchess.games.completed", "result", "draw.insufficient").increment(0)
+    meterRegistry.counter("nowchess.games.completed", "result", "resignation").increment(0)
+    meterRegistry.counter("nowchess.games.completed", "result", "timeout").increment(0)
+    meterRegistry.counter("nowchess.moves.processed").increment(0)
+    meterRegistry.timer("nowchess.moves.duration").record(0L, java.util.concurrent.TimeUnit.MILLISECONDS)
    ()

  private def cacheKey(gameId: String) = s"${redisConfig.prefix}:game:entry:$gameId"
@@ -65,6 +65,7 @@ class InstanceHeartbeatService:

  def onStart(@Observes event: StartupEvent): Unit =
    Gauge.builder("nowchess.instance.subscriptions", subscriptionCount, _.get().toDouble).register(meterRegistry)
+    meterRegistry.counter("nowchess.heartbeat.failures").increment(0)
    if coordinatorEnabled then
      try
        shuttingDown = false
@@ -1,3 +1,3 @@
 MAJOR=0
-MINOR=32
+MINOR=37
 PATCH=0
@@ -228,3 +228,71 @@
 ### Bug Fixes

 * IO microservice ([#38](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/38)) ([a386f57](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/a386f57c21d34ead6cc6f92836c52b714597e289))
+##  (2026-05-12)
+
+### Features
+
+* add OpenTelemetry trace configuration with parentbased sampler ([3904d5a](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3904d5ad8ad4930ddee65287a7bfab785a6148f5))
+* **config:** update application.yml for PostgreSQL and remove staging/production configurations ([2404e61](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2404e6164c3b50ffccbea5238d636060d6abe4d6))
+* **config:** update application.yml for staging and production environments ([6113432](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6113432a14c476a3a0dfc0d449e17d023697f2ba))
+* NCS-14 implemented insufficient moves rule ([#30](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/30)) ([b0399a4](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b0399a4e489950083066c9538df9a84dcc7a4613))
+* NCS-25 Add linters to keep quality up ([#27](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/27)) ([fd4e67d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/fd4e67d4f782a7e955822d90cb909d0a81676fb2))
+* NCS-29 JSON - Cherry Picked ([#28](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/28)) ([dbcafd2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/dbcafd286993e0604a6fa286c5543581a149439e))
+* NCS-30 FEN Parser using ParserCombinators ([#21](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/21)) ([b4bc72f](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b4bc72f7e49f94d6e1bc805c68680e5fe8ef8e36))
+* NCS-31 FastParse FEN ([#22](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/22)) ([7a045d3](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/7a045d31d757bbc5aa6f4bad2664ebe8b8519cac))
+* NCS-37 Quarkus integration ([#35](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/35)) ([f088c4e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/f088c4e9ffcc498d3d1b6f01e8f50042d5830d55))
+* NCS-41 Bot Platform ([#33](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/33)) ([8744bee](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/8744bee2dd20966dae90a09c21a43d5b06f59e00))
+* NCS-53 changed IO to MicroService for easier scaling ([#37](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/37)) ([b5a2966](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b5a2966adafa9650f0f7d601bdeb8fdd13710327))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+
+### Bug Fixes
+
+* IO microservice ([#38](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/38)) ([a386f57](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/a386f57c21d34ead6cc6f92836c52b714597e289))
+##  (2026-05-12)
+
+### Features
+
+* add authentication permissions for metrics endpoints in application.yml ([04edd4d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/04edd4d6fd8a63196c36f6d67992832febc9bebb))
+* add OpenTelemetry trace configuration with parentbased sampler ([3904d5a](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3904d5ad8ad4930ddee65287a7bfab785a6148f5))
+* **config:** update application.yml for PostgreSQL and remove staging/production configurations ([2404e61](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2404e6164c3b50ffccbea5238d636060d6abe4d6))
+* **config:** update application.yml for staging and production environments ([6113432](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6113432a14c476a3a0dfc0d449e17d023697f2ba))
+* NCS-14 implemented insufficient moves rule ([#30](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/30)) ([b0399a4](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b0399a4e489950083066c9538df9a84dcc7a4613))
+* NCS-25 Add linters to keep quality up ([#27](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/27)) ([fd4e67d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/fd4e67d4f782a7e955822d90cb909d0a81676fb2))
+* NCS-29 JSON - Cherry Picked ([#28](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/28)) ([dbcafd2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/dbcafd286993e0604a6fa286c5543581a149439e))
+* NCS-30 FEN Parser using ParserCombinators ([#21](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/21)) ([b4bc72f](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b4bc72f7e49f94d6e1bc805c68680e5fe8ef8e36))
+* NCS-31 FastParse FEN ([#22](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/22)) ([7a045d3](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/7a045d31d757bbc5aa6f4bad2664ebe8b8519cac))
+* NCS-37 Quarkus integration ([#35](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/35)) ([f088c4e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/f088c4e9ffcc498d3d1b6f01e8f50042d5830d55))
+* NCS-41 Bot Platform ([#33](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/33)) ([8744bee](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/8744bee2dd20966dae90a09c21a43d5b06f59e00))
+* NCS-53 changed IO to MicroService for easier scaling ([#37](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/37)) ([b5a2966](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b5a2966adafa9650f0f7d601bdeb8fdd13710327))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+
+### Bug Fixes
+
+* IO microservice ([#38](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/38)) ([a386f57](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/a386f57c21d34ead6cc6f92836c52b714597e289))
+##  (2026-05-12)
+
+### Features
+
+* add authentication permissions for metrics endpoints in application.yml ([04edd4d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/04edd4d6fd8a63196c36f6d67992832febc9bebb))
+* add OpenTelemetry trace configuration with parentbased sampler ([3904d5a](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3904d5ad8ad4930ddee65287a7bfab785a6148f5))
+* **config:** update application.yml for PostgreSQL and remove staging/production configurations ([2404e61](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2404e6164c3b50ffccbea5238d636060d6abe4d6))
+* **config:** update application.yml for staging and production environments ([6113432](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6113432a14c476a3a0dfc0d449e17d023697f2ba))
+* NCS-14 implemented insufficient moves rule ([#30](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/30)) ([b0399a4](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b0399a4e489950083066c9538df9a84dcc7a4613))
+* NCS-25 Add linters to keep quality up ([#27](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/27)) ([fd4e67d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/fd4e67d4f782a7e955822d90cb909d0a81676fb2))
+* NCS-29 JSON - Cherry Picked ([#28](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/28)) ([dbcafd2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/dbcafd286993e0604a6fa286c5543581a149439e))
+* NCS-30 FEN Parser using ParserCombinators ([#21](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/21)) ([b4bc72f](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b4bc72f7e49f94d6e1bc805c68680e5fe8ef8e36))
+* NCS-31 FastParse FEN ([#22](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/22)) ([7a045d3](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/7a045d31d757bbc5aa6f4bad2664ebe8b8519cac))
+* NCS-37 Quarkus integration ([#35](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/35)) ([f088c4e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/f088c4e9ffcc498d3d1b6f01e8f50042d5830d55))
+* NCS-41 Bot Platform ([#33](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/33)) ([8744bee](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/8744bee2dd20966dae90a09c21a43d5b06f59e00))
+* NCS-53 changed IO to MicroService for easier scaling ([#37](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/37)) ([b5a2966](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b5a2966adafa9650f0f7d601bdeb8fdd13710327))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+* update application.yml with new API root paths and add Micrometer and OpenTelemetry dependencies ([72ce262](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/72ce262bc491f94297700e6002fb5d0812e2cc2a))
+
+### Bug Fixes
+
+* IO microservice ([#38](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/38)) ([a386f57](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/a386f57c21d34ead6cc6f92836c52b714597e289))
+
+### Reverts
+
+* Revert "feat: add authentication permissions for metrics endpoints in application.yml" ([a298417](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/a298417b9e4d68dc73bbf40be63d9484536e9f83))
+* Revert "refactor: update metrics paths formatting in application.yml for clarity" ([3870566](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/38705663498d5f47c40dafe2f26198589ede8656))
@@ -68,6 +68,9 @@ dependencies {
    implementation("io.quarkus:quarkus-grpc")
    implementation("io.quarkus:quarkus-smallrye-health")
    implementation("io.quarkus:quarkus-smallrye-openapi")
+    implementation("io.quarkus:quarkus-micrometer")
+    implementation("io.quarkus:quarkus-micrometer-registry-prometheus")
+    implementation("io.quarkus:quarkus-opentelemetry")

    testImplementation(platform("org.junit:junit-bom:5.13.4"))
    testImplementation("org.junit.jupiter:junit-jupiter")
@@ -17,3 +17,19 @@ quarkus:
 nowchess:
  internal:
    secret: ${INTERNAL_SECRET:123abc}
+
+"%deployed":
+  quarkus:
+    log:
+      console:
+        json: true
+    otel:
+      traces:
+        sampler: parentbased_traceidratio
+        sampler-arg: 0.1
+      exporter:
+        otlp:
+          endpoint: ${OTEL_EXPORTER_OTLP_ENDPOINT:http://localhost:4317}
+  nowchess:
+    internal:
+      secret: ${INTERNAL_SECRET}
@@ -1,3 +1,3 @@
 MAJOR=0
-MINOR=19
+MINOR=22
 PATCH=0
@@ -93,3 +93,66 @@
 * NCS-78 Add Traceability to the Applications ([#46](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/46)) ([649566e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/649566eb3fcf38f91c8896a739f74ea318af312d))
 * NCS-78 Add Traceability to the Applications ([#47](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/47)) ([87dfc6c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/87dfc6c2bcce7f7d58fc641bd8d468a2e584c108))
 * true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+##  (2026-05-11)
+
+### Features
+
+* add initialization metrics for various services ([d438e97](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d438e97f32bdde0bfc63c1b4a8cc810cdd093166))
+* **config:** update application.yml for PostgreSQL and remove staging/production configurations ([2404e61](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2404e6164c3b50ffccbea5238d636060d6abe4d6))
+* **config:** update application.yml for staging and production environments ([6113432](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6113432a14c476a3a0dfc0d449e17d023697f2ba))
+* configure logging and add OpenTelemetry support ([#49](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/49)) ([d57c488](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d57c4886612d1d92da0e1b79209fc83e6ef537a1))
+* **docker:** add .dockerignore and .gitignore files for build exclusions ([c987d8e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c987d8e258c0e6c4cfbdaa8381c64c410d7a2b83))
+* **docker:** add Dockerfiles for building Quarkus application in native and JVM modes ([3f2d2bb](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3f2d2bb4c97fa8cddba66e1da4427c54236dfeed))
+* **docker:** add Dockerfiles for Quarkus application in JVM and native modes ([34b9933](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/34b993304670cf2aa62cd2f6460cee7b9864b08e))
+* NCS-78 Add Traceability to the Applications ([#46](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/46)) ([649566e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/649566eb3fcf38f91c8896a739f74ea318af312d))
+* NCS-78 Add Traceability to the Applications ([#47](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/47)) ([87dfc6c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/87dfc6c2bcce7f7d58fc641bd8d468a2e584c108))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+##  (2026-05-12)
+
+### Features
+
+* add initialization metrics for various services ([d438e97](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d438e97f32bdde0bfc63c1b4a8cc810cdd093166))
+* add OpenTelemetry trace configuration with parentbased sampler ([3904d5a](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3904d5ad8ad4930ddee65287a7bfab785a6148f5))
+* **config:** update application.yml for PostgreSQL and remove staging/production configurations ([2404e61](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2404e6164c3b50ffccbea5238d636060d6abe4d6))
+* **config:** update application.yml for staging and production environments ([6113432](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6113432a14c476a3a0dfc0d449e17d023697f2ba))
+* configure logging and add OpenTelemetry support ([#49](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/49)) ([d57c488](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d57c4886612d1d92da0e1b79209fc83e6ef537a1))
+* **docker:** add .dockerignore and .gitignore files for build exclusions ([c987d8e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c987d8e258c0e6c4cfbdaa8381c64c410d7a2b83))
+* **docker:** add Dockerfiles for building Quarkus application in native and JVM modes ([3f2d2bb](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3f2d2bb4c97fa8cddba66e1da4427c54236dfeed))
+* **docker:** add Dockerfiles for Quarkus application in JVM and native modes ([34b9933](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/34b993304670cf2aa62cd2f6460cee7b9864b08e))
+* NCS-78 Add Traceability to the Applications ([#46](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/46)) ([649566e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/649566eb3fcf38f91c8896a739f74ea318af312d))
+* NCS-78 Add Traceability to the Applications ([#47](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/47)) ([87dfc6c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/87dfc6c2bcce7f7d58fc641bd8d468a2e584c108))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+##  (2026-05-12)
+
+### Features
+
+* add initialization metrics for various services ([d438e97](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d438e97f32bdde0bfc63c1b4a8cc810cdd093166))
+* add OpenTelemetry trace configuration with parentbased sampler ([3904d5a](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3904d5ad8ad4930ddee65287a7bfab785a6148f5))
+* **config:** update application.yml for PostgreSQL and remove staging/production configurations ([2404e61](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2404e6164c3b50ffccbea5238d636060d6abe4d6))
+* **config:** update application.yml for staging and production environments ([6113432](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6113432a14c476a3a0dfc0d449e17d023697f2ba))
+* configure logging and add OpenTelemetry support ([#49](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/49)) ([d57c488](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d57c4886612d1d92da0e1b79209fc83e6ef537a1))
+* **docker:** add .dockerignore and .gitignore files for build exclusions ([c987d8e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c987d8e258c0e6c4cfbdaa8381c64c410d7a2b83))
+* **docker:** add Dockerfiles for building Quarkus application in native and JVM modes ([3f2d2bb](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3f2d2bb4c97fa8cddba66e1da4427c54236dfeed))
+* **docker:** add Dockerfiles for Quarkus application in JVM and native modes ([34b9933](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/34b993304670cf2aa62cd2f6460cee7b9864b08e))
+* NCS-78 Add Traceability to the Applications ([#46](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/46)) ([649566e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/649566eb3fcf38f91c8896a739f74ea318af312d))
+* NCS-78 Add Traceability to the Applications ([#47](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/47)) ([87dfc6c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/87dfc6c2bcce7f7d58fc641bd8d468a2e584c108))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+##  (2026-05-12)
+
+### Features
+
+* add initialization metrics for various services ([d438e97](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d438e97f32bdde0bfc63c1b4a8cc810cdd093166))
+* add OpenTelemetry trace configuration with parentbased sampler ([3904d5a](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3904d5ad8ad4930ddee65287a7bfab785a6148f5))
+* **config:** update application.yml for PostgreSQL and remove staging/production configurations ([2404e61](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2404e6164c3b50ffccbea5238d636060d6abe4d6))
+* **config:** update application.yml for staging and production environments ([6113432](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6113432a14c476a3a0dfc0d449e17d023697f2ba))
+* configure logging and add OpenTelemetry support ([#49](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/49)) ([d57c488](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d57c4886612d1d92da0e1b79209fc83e6ef537a1))
+* **docker:** add .dockerignore and .gitignore files for build exclusions ([c987d8e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c987d8e258c0e6c4cfbdaa8381c64c410d7a2b83))
+* **docker:** add Dockerfiles for building Quarkus application in native and JVM modes ([3f2d2bb](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3f2d2bb4c97fa8cddba66e1da4427c54236dfeed))
+* **docker:** add Dockerfiles for Quarkus application in JVM and native modes ([34b9933](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/34b993304670cf2aa62cd2f6460cee7b9864b08e))
+* NCS-78 Add Traceability to the Applications ([#46](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/46)) ([649566e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/649566eb3fcf38f91c8896a739f74ea318af312d))
+* NCS-78 Add Traceability to the Applications ([#47](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/47)) ([87dfc6c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/87dfc6c2bcce7f7d58fc641bd8d468a2e584c108))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+
+### Reverts
+
+* Revert "refactor: update metrics paths formatting in application.yml for clarity" ([3870566](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/38705663498d5f47c40dafe2f26198589ede8656))
@@ -22,6 +22,9 @@ nowchess:
      console:
        json: true
    otel:
+      traces:
+        sampler: parentbased_traceidratio
+        sampler-arg: 0.1
      exporter:
        otlp:
          endpoint: ${OTEL_EXPORTER_OTLP_ENDPOINT:http://localhost:4317}
@@ -9,11 +9,13 @@ import de.nowchess.io.fen.FenParser
 import io.micrometer.core.instrument.MeterRegistry
 import io.quarkus.redis.datasource.RedisDataSource
 import io.quarkus.runtime.StartupEvent
+import jakarta.annotation.PostConstruct
 import jakarta.enterprise.context.ApplicationScoped
 import jakarta.enterprise.event.Observes
 import jakarta.inject.Inject
 import scala.compiletime.uninitialized
 import java.util.function.Consumer
+import java.util.concurrent.TimeUnit

@ApplicationScoped
 class OfficialBotService:
@@ -29,6 +31,13 @@ class OfficialBotService:
  private val terminalStatuses =
    Set("checkmate", "resign", "timeout", "stalemate", "insufficientMaterial", "draw")

+  @PostConstruct
+  def initializeMetrics(): Unit =
+    BotController.listBots.foreach { bot =>
+      meterRegistry.timer("nowchess.bot.move.duration", "bot", bot).record(0L, TimeUnit.MILLISECONDS)
+      meterRegistry.counter("nowchess.bot.moves.computed", "bot", bot).increment(0)
+    }
+
  def onStart(@Observes event: StartupEvent): Unit =
    BotController.listBots.foreach(subscribeToEventChannel)

@@ -1,3 +1,3 @@
 MAJOR=0
-MINOR=9
+MINOR=13
 PATCH=0
@@ -239,3 +239,68 @@
 ### Bug Fixes

 * NCS-32 Queenside Castle doesn't care about pieces in the way ([#23](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/23)) ([fe8e3c0](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/fe8e3c05397f433bfa34d1999e9738c82790adf7))
+##  (2026-05-12)
+
+### Features
+
+* add OpenTelemetry trace configuration with parentbased sampler ([3904d5a](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3904d5ad8ad4930ddee65287a7bfab785a6148f5))
+* **config:** update application.yml for PostgreSQL and remove staging/production configurations ([2404e61](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2404e6164c3b50ffccbea5238d636060d6abe4d6))
+* **config:** update application.yml for staging and production environments ([6113432](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6113432a14c476a3a0dfc0d449e17d023697f2ba))
+* **docker:** update COPY command in native Dockerfile to reflect new build path ([952cf00](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/952cf00413fcbc5e9df1bad224d2e99f07064bf7))
+* NCS-13 Implement Threefold Repetition ([#31](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/31)) ([767d305](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/767d3051a76c266050b6335774d66e2db2273c16))
+* NCS-14 implemented insufficient moves rule ([#30](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/30)) ([b0399a4](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b0399a4e489950083066c9538df9a84dcc7a4613))
+* NCS-25 Add linters to keep quality up ([#27](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/27)) ([fd4e67d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/fd4e67d4f782a7e955822d90cb909d0a81676fb2))
+* NCS-37 Quarkus integration ([#35](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/35)) ([f088c4e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/f088c4e9ffcc498d3d1b6f01e8f50042d5830d55))
+* NCS-41 Bot Platform ([#33](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/33)) ([8744bee](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/8744bee2dd20966dae90a09c21a43d5b06f59e00))
+* **rule:** Rules as a microservice ([#39](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/39)) ([093134d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/093134d36c6844ba02a36a28d5d044f09291cd1d))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+
+### Bug Fixes
+
+* NCS-32 Queenside Castle doesn't care about pieces in the way ([#23](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/23)) ([fe8e3c0](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/fe8e3c05397f433bfa34d1999e9738c82790adf7))
+##  (2026-05-12)
+
+### Features
+
+* add authentication permissions for metrics endpoints in application.yml ([04edd4d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/04edd4d6fd8a63196c36f6d67992832febc9bebb))
+* add OpenTelemetry trace configuration with parentbased sampler ([3904d5a](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3904d5ad8ad4930ddee65287a7bfab785a6148f5))
+* **config:** update application.yml for PostgreSQL and remove staging/production configurations ([2404e61](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2404e6164c3b50ffccbea5238d636060d6abe4d6))
+* **config:** update application.yml for staging and production environments ([6113432](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6113432a14c476a3a0dfc0d449e17d023697f2ba))
+* **docker:** update COPY command in native Dockerfile to reflect new build path ([952cf00](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/952cf00413fcbc5e9df1bad224d2e99f07064bf7))
+* NCS-13 Implement Threefold Repetition ([#31](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/31)) ([767d305](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/767d3051a76c266050b6335774d66e2db2273c16))
+* NCS-14 implemented insufficient moves rule ([#30](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/30)) ([b0399a4](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b0399a4e489950083066c9538df9a84dcc7a4613))
+* NCS-25 Add linters to keep quality up ([#27](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/27)) ([fd4e67d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/fd4e67d4f782a7e955822d90cb909d0a81676fb2))
+* NCS-37 Quarkus integration ([#35](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/35)) ([f088c4e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/f088c4e9ffcc498d3d1b6f01e8f50042d5830d55))
+* NCS-41 Bot Platform ([#33](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/33)) ([8744bee](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/8744bee2dd20966dae90a09c21a43d5b06f59e00))
+* **rule:** Rules as a microservice ([#39](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/39)) ([093134d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/093134d36c6844ba02a36a28d5d044f09291cd1d))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+
+### Bug Fixes
+
+* NCS-32 Queenside Castle doesn't care about pieces in the way ([#23](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/23)) ([fe8e3c0](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/fe8e3c05397f433bfa34d1999e9738c82790adf7))
+##  (2026-05-12)
+
+### Features
+
+* add authentication permissions for metrics endpoints in application.yml ([04edd4d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/04edd4d6fd8a63196c36f6d67992832febc9bebb))
+* add OpenTelemetry trace configuration with parentbased sampler ([3904d5a](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3904d5ad8ad4930ddee65287a7bfab785a6148f5))
+* **config:** update application.yml for PostgreSQL and remove staging/production configurations ([2404e61](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2404e6164c3b50ffccbea5238d636060d6abe4d6))
+* **config:** update application.yml for staging and production environments ([6113432](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6113432a14c476a3a0dfc0d449e17d023697f2ba))
+* **docker:** update COPY command in native Dockerfile to reflect new build path ([952cf00](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/952cf00413fcbc5e9df1bad224d2e99f07064bf7))
+* NCS-13 Implement Threefold Repetition ([#31](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/31)) ([767d305](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/767d3051a76c266050b6335774d66e2db2273c16))
+* NCS-14 implemented insufficient moves rule ([#30](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/30)) ([b0399a4](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b0399a4e489950083066c9538df9a84dcc7a4613))
+* NCS-25 Add linters to keep quality up ([#27](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/27)) ([fd4e67d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/fd4e67d4f782a7e955822d90cb909d0a81676fb2))
+* NCS-37 Quarkus integration ([#35](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/35)) ([f088c4e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/f088c4e9ffcc498d3d1b6f01e8f50042d5830d55))
+* NCS-41 Bot Platform ([#33](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/33)) ([8744bee](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/8744bee2dd20966dae90a09c21a43d5b06f59e00))
+* **rule:** Rules as a microservice ([#39](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/39)) ([093134d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/093134d36c6844ba02a36a28d5d044f09291cd1d))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+* update application.yml with new API root paths and add Micrometer and OpenTelemetry dependencies ([72ce262](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/72ce262bc491f94297700e6002fb5d0812e2cc2a))
+
+### Bug Fixes
+
+* NCS-32 Queenside Castle doesn't care about pieces in the way ([#23](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/23)) ([fe8e3c0](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/fe8e3c05397f433bfa34d1999e9738c82790adf7))
+
+### Reverts
+
+* Revert "feat: add authentication permissions for metrics endpoints in application.yml" ([a298417](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/a298417b9e4d68dc73bbf40be63d9484536e9f83))
+* Revert "refactor: update metrics paths formatting in application.yml for clarity" ([3870566](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/38705663498d5f47c40dafe2f26198589ede8656))
@@ -66,6 +66,8 @@ dependencies {
    implementation("io.quarkus:quarkus-smallrye-jwt")
    implementation("io.quarkus:quarkus-smallrye-health")
    implementation("io.quarkus:quarkus-micrometer")
+    implementation("io.quarkus:quarkus-micrometer-registry-prometheus")
+    implementation("io.quarkus:quarkus-opentelemetry")
    implementation("io.quarkus:quarkus-arc")
    implementation("com.fasterxml.jackson.module:jackson-module-scala_3:${versions["JACKSON_SCALA"]!!}")

@@ -10,3 +10,19 @@ quarkus:
 nowchess:
  internal:
    secret: ${INTERNAL_SECRET:123abc}
+
+"%deployed":
+  quarkus:
+    log:
+      console:
+        json: true
+    otel:
+      traces:
+        sampler: parentbased_traceidratio
+        sampler-arg: 0.1
+      exporter:
+        otlp:
+          endpoint: ${OTEL_EXPORTER_OTLP_ENDPOINT:http://localhost:4317}
+  nowchess:
+    internal:
+      secret: ${INTERNAL_SECRET}
@@ -1,3 +1,3 @@
 MAJOR=0
-MINOR=15
+MINOR=18
 PATCH=0
@@ -127,3 +127,63 @@
 ### Bug Fixes

 * **redis:** update Redis configuration with max pool size and waiting parameters ([5baf6a7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5baf6a7cdbea484fc49c02e2b5a1c3919b7fa2c4))
+##  (2026-05-11)
+
+### Features
+
+* add initialization metrics for various services ([d438e97](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d438e97f32bdde0bfc63c1b4a8cc810cdd093166))
+* **config:** update application.yml for PostgreSQL and remove staging/production configurations ([2404e61](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2404e6164c3b50ffccbea5238d636060d6abe4d6))
+* **config:** update application.yml for staging and production environments ([6113432](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6113432a14c476a3a0dfc0d449e17d023697f2ba))
+* **config:** update application.yml to nest HTTP port configuration ([3efebd5](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3efebd5ed0493159c51f7246d18d59bac58cf875))
+* configure logging and add OpenTelemetry support ([#49](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/49)) ([d57c488](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d57c4886612d1d92da0e1b79209fc83e6ef537a1))
+* **docker:** add .dockerignore and .gitignore files for build exclusions ([c987d8e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c987d8e258c0e6c4cfbdaa8381c64c410d7a2b83))
+* **docker:** add Dockerfiles for building Quarkus application in native and JVM modes ([3f2d2bb](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3f2d2bb4c97fa8cddba66e1da4427c54236dfeed))
+* **docker:** add Dockerfiles for Quarkus application in JVM and native modes ([34b9933](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/34b993304670cf2aa62cd2f6460cee7b9864b08e))
+* NCS-78 Add Traceability to the Applications ([#46](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/46)) ([649566e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/649566eb3fcf38f91c8896a739f74ea318af312d))
+* NCS-78 Add Traceability to the Applications ([#47](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/47)) ([87dfc6c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/87dfc6c2bcce7f7d58fc641bd8d468a2e584c108))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+
+### Bug Fixes
+
+* **redis:** update Redis configuration with max pool size and waiting parameters ([5baf6a7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5baf6a7cdbea484fc49c02e2b5a1c3919b7fa2c4))
+##  (2026-05-12)
+
+### Features
+
+* add initialization metrics for various services ([d438e97](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d438e97f32bdde0bfc63c1b4a8cc810cdd093166))
+* add OpenTelemetry trace configuration with parentbased sampler ([3904d5a](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3904d5ad8ad4930ddee65287a7bfab785a6148f5))
+* **config:** update application.yml for PostgreSQL and remove staging/production configurations ([2404e61](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2404e6164c3b50ffccbea5238d636060d6abe4d6))
+* **config:** update application.yml for staging and production environments ([6113432](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6113432a14c476a3a0dfc0d449e17d023697f2ba))
+* **config:** update application.yml to nest HTTP port configuration ([3efebd5](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3efebd5ed0493159c51f7246d18d59bac58cf875))
+* configure logging and add OpenTelemetry support ([#49](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/49)) ([d57c488](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d57c4886612d1d92da0e1b79209fc83e6ef537a1))
+* **docker:** add .dockerignore and .gitignore files for build exclusions ([c987d8e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c987d8e258c0e6c4cfbdaa8381c64c410d7a2b83))
+* **docker:** add Dockerfiles for building Quarkus application in native and JVM modes ([3f2d2bb](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3f2d2bb4c97fa8cddba66e1da4427c54236dfeed))
+* **docker:** add Dockerfiles for Quarkus application in JVM and native modes ([34b9933](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/34b993304670cf2aa62cd2f6460cee7b9864b08e))
+* NCS-78 Add Traceability to the Applications ([#46](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/46)) ([649566e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/649566eb3fcf38f91c8896a739f74ea318af312d))
+* NCS-78 Add Traceability to the Applications ([#47](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/47)) ([87dfc6c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/87dfc6c2bcce7f7d58fc641bd8d468a2e584c108))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+
+### Bug Fixes
+
+* **redis:** update Redis configuration with max pool size and waiting parameters ([5baf6a7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5baf6a7cdbea484fc49c02e2b5a1c3919b7fa2c4))
+##  (2026-05-12)
+
+### Features
+
+* add initialization metrics for various services ([d438e97](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d438e97f32bdde0bfc63c1b4a8cc810cdd093166))
+* add OpenTelemetry trace configuration with parentbased sampler ([3904d5a](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3904d5ad8ad4930ddee65287a7bfab785a6148f5))
+* **config:** update application.yml for PostgreSQL and remove staging/production configurations ([2404e61](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2404e6164c3b50ffccbea5238d636060d6abe4d6))
+* **config:** update application.yml for staging and production environments ([6113432](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6113432a14c476a3a0dfc0d449e17d023697f2ba))
+* **config:** update application.yml to nest HTTP port configuration ([3efebd5](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3efebd5ed0493159c51f7246d18d59bac58cf875))
+* configure logging and add OpenTelemetry support ([#49](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/49)) ([d57c488](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d57c4886612d1d92da0e1b79209fc83e6ef537a1))
+* **docker:** add .dockerignore and .gitignore files for build exclusions ([c987d8e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c987d8e258c0e6c4cfbdaa8381c64c410d7a2b83))
+* **docker:** add Dockerfiles for building Quarkus application in native and JVM modes ([3f2d2bb](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3f2d2bb4c97fa8cddba66e1da4427c54236dfeed))
+* **docker:** add Dockerfiles for Quarkus application in JVM and native modes ([34b9933](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/34b993304670cf2aa62cd2f6460cee7b9864b08e))
+* NCS-78 Add Traceability to the Applications ([#46](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/46)) ([649566e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/649566eb3fcf38f91c8896a739f74ea318af312d))
+* NCS-78 Add Traceability to the Applications ([#47](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/47)) ([87dfc6c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/87dfc6c2bcce7f7d58fc641bd8d468a2e584c108))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+* update application.yml with new API root paths and add Micrometer and OpenTelemetry dependencies ([72ce262](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/72ce262bc491f94297700e6002fb5d0812e2cc2a))
+
+### Bug Fixes
+
+* **redis:** update Redis configuration with max pool size and waiting parameters ([5baf6a7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5baf6a7cdbea484fc49c02e2b5a1c3919b7fa2c4))
@@ -30,10 +30,15 @@ nowchess:

 "%deployed":
  quarkus:
+    http:
+      root-path: /api/store
    log:
      console:
        json: true
    otel:
+      traces:
+        sampler: parentbased_traceidratio
+        sampler-arg: 0.1
      exporter:
        otlp:
          endpoint: ${OTEL_EXPORTER_OTLP_ENDPOINT:http://localhost:4317}
@@ -4,6 +4,7 @@ import de.nowchess.api.dto.GameWritebackEventDto
 import de.nowchess.store.domain.GameRecord
 import de.nowchess.store.repository.GameRecordRepository
 import io.micrometer.core.instrument.{Counter, MeterRegistry, Timer}
+import jakarta.annotation.PostConstruct
 import jakarta.enterprise.context.ApplicationScoped
 import jakarta.inject.Inject
 import jakarta.transaction.Transactional
@@ -20,7 +21,14 @@ class GameWritebackService:

  @Inject
  var meterRegistry: MeterRegistry = uninitialized
-  // scalafix:on DisableSyntax.var
+  // scalafix:on
+
+  @PostConstruct
+  def initializeMetrics(): Unit =
+    meterRegistry.timer("nowchess.store.writeback.duration").record(0L, java.util.concurrent.TimeUnit.MILLISECONDS)
+    meterRegistry.counter("nowchess.store.writeback.skipped").increment(0)
+    meterRegistry.counter("nowchess.store.games.written", "operation", "create").increment(0)
+    meterRegistry.counter("nowchess.store.games.written", "operation", "update").increment(0)

  private lazy val writebackTimer: Timer =
    meterRegistry.timer("nowchess.store.writeback.duration")
@@ -1,3 +1,3 @@
 MAJOR=0
-MINOR=10
+MINOR=13
 PATCH=0
@@ -106,3 +106,75 @@
 * NCS-78 Add Traceability to the Applications ([#46](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/46)) ([649566e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/649566eb3fcf38f91c8896a739f74ea318af312d))
 * NCS-78 Add Traceability to the Applications ([#47](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/47)) ([87dfc6c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/87dfc6c2bcce7f7d58fc641bd8d468a2e584c108))
 * true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+##  (2026-05-11)
+
+### Features
+
+* add initialization metrics for various services ([d438e97](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d438e97f32bdde0bfc63c1b4a8cc810cdd093166))
+* **config:** update application.yml for PostgreSQL and remove staging/production configurations ([2404e61](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2404e6164c3b50ffccbea5238d636060d6abe4d6))
+* **config:** update application.yml for staging and production environments ([6113432](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6113432a14c476a3a0dfc0d449e17d023697f2ba))
+* configure logging and add OpenTelemetry support ([#49](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/49)) ([d57c488](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d57c4886612d1d92da0e1b79209fc83e6ef537a1))
+* **docker:** add .dockerignore and .gitignore files for build exclusions ([c987d8e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c987d8e258c0e6c4cfbdaa8381c64c410d7a2b83))
+* **docker:** add Dockerfiles for building Quarkus application in native and JVM modes ([3f2d2bb](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3f2d2bb4c97fa8cddba66e1da4427c54236dfeed))
+* **docker:** add Dockerfiles for Quarkus application in JVM and native modes ([34b9933](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/34b993304670cf2aa62cd2f6460cee7b9864b08e))
+* **docker:** add Dockerfiles for Quarkus application in JVM and native modes ([e5fe7d0](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/e5fe7d07a58e018151bb24f4ee37c06e72608ded))
+* **logging:** add DEBUG/INFO/WARN logging across services (NCS-72) ([#41](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/41)) ([804a4bf](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/804a4bf179e3dfb19e2be4390e7e543caf5237c6))
+* NCS-78 Add Traceability to the Applications ([#46](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/46)) ([649566e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/649566eb3fcf38f91c8896a739f74ea318af312d))
+* NCS-78 Add Traceability to the Applications ([#47](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/47)) ([87dfc6c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/87dfc6c2bcce7f7d58fc641bd8d468a2e584c108))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+##  (2026-05-12)
+
+### Features
+
+* add initialization metrics for various services ([d438e97](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d438e97f32bdde0bfc63c1b4a8cc810cdd093166))
+* add OpenTelemetry trace configuration with parentbased sampler ([3904d5a](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3904d5ad8ad4930ddee65287a7bfab785a6148f5))
+* **config:** update application.yml for PostgreSQL and remove staging/production configurations ([2404e61](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2404e6164c3b50ffccbea5238d636060d6abe4d6))
+* **config:** update application.yml for staging and production environments ([6113432](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6113432a14c476a3a0dfc0d449e17d023697f2ba))
+* configure logging and add OpenTelemetry support ([#49](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/49)) ([d57c488](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d57c4886612d1d92da0e1b79209fc83e6ef537a1))
+* **docker:** add .dockerignore and .gitignore files for build exclusions ([c987d8e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c987d8e258c0e6c4cfbdaa8381c64c410d7a2b83))
+* **docker:** add Dockerfiles for building Quarkus application in native and JVM modes ([3f2d2bb](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3f2d2bb4c97fa8cddba66e1da4427c54236dfeed))
+* **docker:** add Dockerfiles for Quarkus application in JVM and native modes ([34b9933](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/34b993304670cf2aa62cd2f6460cee7b9864b08e))
+* **docker:** add Dockerfiles for Quarkus application in JVM and native modes ([e5fe7d0](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/e5fe7d07a58e018151bb24f4ee37c06e72608ded))
+* **logging:** add DEBUG/INFO/WARN logging across services (NCS-72) ([#41](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/41)) ([804a4bf](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/804a4bf179e3dfb19e2be4390e7e543caf5237c6))
+* NCS-78 Add Traceability to the Applications ([#46](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/46)) ([649566e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/649566eb3fcf38f91c8896a739f74ea318af312d))
+* NCS-78 Add Traceability to the Applications ([#47](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/47)) ([87dfc6c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/87dfc6c2bcce7f7d58fc641bd8d468a2e584c108))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+##  (2026-05-12)
+
+### Features
+
+* add initialization metrics for various services ([d438e97](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d438e97f32bdde0bfc63c1b4a8cc810cdd093166))
+* add OpenTelemetry trace configuration with parentbased sampler ([3904d5a](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3904d5ad8ad4930ddee65287a7bfab785a6148f5))
+* **config:** update application.yml for PostgreSQL and remove staging/production configurations ([2404e61](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2404e6164c3b50ffccbea5238d636060d6abe4d6))
+* **config:** update application.yml for staging and production environments ([6113432](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6113432a14c476a3a0dfc0d449e17d023697f2ba))
+* configure logging and add OpenTelemetry support ([#49](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/49)) ([d57c488](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d57c4886612d1d92da0e1b79209fc83e6ef537a1))
+* **docker:** add .dockerignore and .gitignore files for build exclusions ([c987d8e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c987d8e258c0e6c4cfbdaa8381c64c410d7a2b83))
+* **docker:** add Dockerfiles for building Quarkus application in native and JVM modes ([3f2d2bb](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3f2d2bb4c97fa8cddba66e1da4427c54236dfeed))
+* **docker:** add Dockerfiles for Quarkus application in JVM and native modes ([34b9933](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/34b993304670cf2aa62cd2f6460cee7b9864b08e))
+* **docker:** add Dockerfiles for Quarkus application in JVM and native modes ([e5fe7d0](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/e5fe7d07a58e018151bb24f4ee37c06e72608ded))
+* **logging:** add DEBUG/INFO/WARN logging across services (NCS-72) ([#41](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/41)) ([804a4bf](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/804a4bf179e3dfb19e2be4390e7e543caf5237c6))
+* NCS-78 Add Traceability to the Applications ([#46](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/46)) ([649566e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/649566eb3fcf38f91c8896a739f74ea318af312d))
+* NCS-78 Add Traceability to the Applications ([#47](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/47)) ([87dfc6c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/87dfc6c2bcce7f7d58fc641bd8d468a2e584c108))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+##  (2026-05-12)
+
+### Features
+
+* add initialization metrics for various services ([d438e97](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d438e97f32bdde0bfc63c1b4a8cc810cdd093166))
+* add OpenTelemetry trace configuration with parentbased sampler ([3904d5a](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3904d5ad8ad4930ddee65287a7bfab785a6148f5))
+* **config:** update application.yml for PostgreSQL and remove staging/production configurations ([2404e61](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2404e6164c3b50ffccbea5238d636060d6abe4d6))
+* **config:** update application.yml for staging and production environments ([6113432](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6113432a14c476a3a0dfc0d449e17d023697f2ba))
+* configure logging and add OpenTelemetry support ([#49](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/49)) ([d57c488](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d57c4886612d1d92da0e1b79209fc83e6ef537a1))
+* **docker:** add .dockerignore and .gitignore files for build exclusions ([c987d8e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c987d8e258c0e6c4cfbdaa8381c64c410d7a2b83))
+* **docker:** add Dockerfiles for building Quarkus application in native and JVM modes ([3f2d2bb](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3f2d2bb4c97fa8cddba66e1da4427c54236dfeed))
+* **docker:** add Dockerfiles for Quarkus application in JVM and native modes ([34b9933](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/34b993304670cf2aa62cd2f6460cee7b9864b08e))
+* **docker:** add Dockerfiles for Quarkus application in JVM and native modes ([e5fe7d0](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/e5fe7d07a58e018151bb24f4ee37c06e72608ded))
+* **logging:** add DEBUG/INFO/WARN logging across services (NCS-72) ([#41](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/41)) ([804a4bf](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/804a4bf179e3dfb19e2be4390e7e543caf5237c6))
+* NCS-78 Add Traceability to the Applications ([#46](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/46)) ([649566e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/649566eb3fcf38f91c8896a739f74ea318af312d))
+* NCS-78 Add Traceability to the Applications ([#47](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/47)) ([87dfc6c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/87dfc6c2bcce7f7d58fc641bd8d468a2e584c108))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+* update application.yml with new API root paths and add Micrometer and OpenTelemetry dependencies ([72ce262](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/72ce262bc491f94297700e6002fb5d0812e2cc2a))
+
+### Reverts
+
+* Revert "refactor: update metrics paths formatting in application.yml for clarity" ([3870566](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/38705663498d5f47c40dafe2f26198589ede8656))
@@ -29,10 +29,15 @@ nowchess:

 "%deployed":
  quarkus:
+    http:
+      root-path: /ws
    log:
      console:
        json: true
    otel:
+      traces:
+        sampler: parentbased_traceidratio
+        sampler-arg: 0.1
      exporter:
        otlp:
          endpoint: ${OTEL_EXPORTER_OTLP_ENDPOINT:http://localhost:4317}
@@ -6,6 +6,7 @@ import io.quarkus.redis.datasource.RedisDataSource
 import io.quarkus.redis.datasource.pubsub.PubSubCommands
 import io.quarkus.websockets.next.*
 import io.smallrye.jwt.auth.principal.JWTParser
+import jakarta.annotation.PostConstruct
 import jakarta.inject.Inject
 import org.jboss.logging.Logger
 import scala.compiletime.uninitialized
@@ -34,6 +35,14 @@ class GameWebSocketResource:

  private val connections = new ConcurrentHashMap[String, ConnectionMeta]()

+  @PostConstruct
+  def initializeMetrics(): Unit = {
+    connectionsOpened
+    connectionsClosed
+    messagesReceived
+    activeGauge
+  }
+
  private lazy val connectionsOpened: Counter =
    meterRegistry.counter("nowchess.ws.connections.opened")

@@ -1,3 +1,3 @@
 MAJOR=0
-MINOR=9
+MINOR=13
 PATCH=0
Author	SHA1	Message	Date
LQ63	3bda9466b5	docs(tournament): spec Build & Test (NowChessSystems) TeamCity build failed Details Added tournament spec to docs	2026-05-13 13:32:52 +02:00
Janis	81b045d01b	feat: add coordinator startup validation and K8s pod watch Build & Test (NowChessSystems) TeamCity build failed Details On startup, load all known instances from Redis and wait 15s for them to reconnect via gRPC. Evict instances that don't reconnect within the timeout and delete their K8s pods. Replace one-shot pod status check with real fabric8 Watch. On pod Terminating event, mark instance dead. On pod Deleted event, trigger failover. Failover now waits reactively for at least one healthy instance before distributing orphaned games, up to 30s timeout. - Add startupValidationTimeout and failoverWaitTimeout config (15s, 30s) - CoordinatorGrpcServer tracks active gRPC streams - InstanceRegistry.loadAllFromRedis() scans and loads instances on startup - HealthMonitor startup observer validates instances and starts K8s watch - FailoverService.onInstanceStreamDropped returns Uni[Unit] for reactive wait - All failover service callers updated to subscribe to Uni result Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>	2026-05-13 09:55:38 +02:00
TeamCity	118acff0e5	ci: bump version with Build-80	2026-05-13 07:21:09 +00:00
Janis	a49f9be146	feat: add CORS configuration and reorder JWT settings in application.yml Build & Test (NowChessSystems) TeamCity build finished Details	2026-05-13 09:03:21 +02:00
TeamCity	2a5cfeee39	ci: bump version with Build-79	2026-05-12 22:21:53 +00:00
Janis	72ce262bc4	feat: update application.yml with new API root paths and add Micrometer and OpenTelemetry dependencies Build & Test (NowChessSystems) TeamCity build finished Details	2026-05-13 00:02:53 +02:00
Janis	a298417b9e	revert: Revert "feat: add authentication permissions for metrics endpoints in application.yml" This reverts commit `04edd4d6fd`.	2026-05-12 23:16:36 +02:00
Janis	3870566349	revert: Revert "refactor: update metrics paths formatting in application.yml for clarity" This reverts commit `760859d066`.	2026-05-12 23:16:28 +02:00
TeamCity	5f177e1415	ci: bump version with Build-78	2026-05-12 20:36:44 +00:00
Janis	760859d066	refactor: update metrics paths formatting in application.yml for clarity Build & Test (NowChessSystems) TeamCity build finished Details	2026-05-12 22:14:07 +02:00
Janis	04edd4d6fd	feat: add authentication permissions for metrics endpoints in application.yml Build & Test (NowChessSystems) TeamCity build failed Details	2026-05-12 22:07:50 +02:00
TeamCity	e81c3844ad	ci: bump version with Build-77	2026-05-12 17:18:14 +00:00
Janis	3904d5ad8a	feat: add OpenTelemetry trace configuration with parentbased sampler Build & Test (NowChessSystems) TeamCity build finished Details	2026-05-12 19:00:08 +02:00
TeamCity	58e08f3807	ci: bump version with Build-76	2026-05-11 21:05:41 +00:00
Janis	8ded402a0e	refactor: improve initializeMetrics method formatting for clarity Build & Test (NowChessSystems) TeamCity build finished Details	2026-05-11 22:46:22 +02:00
Janis	d438e97f32	feat: add initialization metrics for various services	2026-05-11 22:37:22 +02:00