name: otel-arcade

networks:
  arcade:
    driver: bridge

services:
  otel-collector-agent:
    image: ${COLLECTOR_IMAGE:-otel/opentelemetry-collector-contrib:0.159.0}
    command: ["--config=/etc/otelcol-contrib/config.yaml"]
    environment:
      HONEYCOMB_API_KEY: ${HONEYCOMB_API_KEY:-}
      OTEL_EXPORTER_ENDPOINT: ${OTEL_EXPORTER_ENDPOINT:-api.honeycomb.io:443}
    volumes:
      - ./collector-agent-config.yaml:/etc/otelcol-contrib/config.yaml:ro
    ports:
      - "4317:4317"   # OTLP gRPC
      - "4318:4318"   # OTLP HTTP
      - "9888:8888"   # Collector self-metrics (Prometheus)
    networks: [arcade]

  score-api:
    build: ./services/score-api
    environment:
      OTEL_SERVICE_NAME: score-api
      OTEL_EXPORTER_OTLP_ENDPOINT: otel-collector-agent:4317
      LEADERBOARD_URL: http://leaderboard:5000
      SCORE_API_DB: /tmp/scores.db
    ports:
      - "8080:8080"
    depends_on: [otel-collector-agent]
    healthcheck:
      test: ["CMD", "wget", "-q", "--spider", "http://localhost:8080/health"]
      interval: 5s
      timeout: 3s
      retries: 5
      start_period: 5s
    networks: [arcade]

  leaderboard:
    build: ./services/leaderboard
    environment:
      OTEL_SERVICE_NAME: leaderboard
      OTEL_EXPORTER_OTLP_ENDPOINT: otel-collector-agent:4317
      LEADERBOARD_DB: /tmp/leaderboard.db
    ports:
      - "5050:5000"
    depends_on: [otel-collector-agent]
    healthcheck:
      test: ["CMD", "python", "-c", "import urllib.request; urllib.request.urlopen('http://localhost:5000/health').read()"]
      interval: 5s
      timeout: 3s
      retries: 5
      start_period: 8s
    networks: [arcade]

  arcade-ui:
    build: ./services/arcade-ui
    environment:
      OTEL_SERVICE_NAME: arcade-ui
      OTEL_EXPORTER_OTLP_ENDPOINT: http://otel-collector-agent:4317
      SCORE_API_URL: http://score-api:8080
      LEADERBOARD_URL: http://leaderboard:5000
      COLLECTOR_CONFIG_PATH: /app/collector-agent-config.yaml
      COLLECTOR_CONTAINER_NAME: otel-arcade-otel-collector-agent-1
      COLLECTOR_METRICS_URL: http://otel-collector-agent:8888/metrics
      COLLECTOR_OTLP_HTTP: http://otel-collector-agent:4318
      PORT: "3000"
      GATEWAY_CONTAINER_NAME: otel-arcade-otel-collector-gateway-1
      GATEWAY_NETWORK: otel-arcade_arcade
      GATEWAY_CONFIG_PATH: /app/collector-gateway-config.yaml
      GATEWAY_CONFIG_HOST_PATH: ${PWD}/collector-gateway-config.yaml
      LOADGEN_CONTAINER_NAME: otel-arcade-loadgen-1
      LOADGEN_IMAGE: otel-arcade-loadgen
      HONEYCOMB_API_KEY: ${HONEYCOMB_API_KEY:-}
      OTEL_EXPORTER_ENDPOINT: ${OTEL_EXPORTER_ENDPOINT:-api.honeycomb.io:443}
      ENV_FILE_PATH: /app/.env
    volumes:
      - ./collector-agent-config.yaml:/app/collector-agent-config.yaml
      - ./collector-gateway-config.yaml:/app/collector-gateway-config.yaml
      - ./.env:/app/.env
      - /var/run/docker.sock:/var/run/docker.sock
    ports:
      - "3000:3000"
    depends_on:
      otel-collector-agent:
        condition: service_started
      score-api:
        condition: service_healthy
      leaderboard:
        condition: service_healthy
    healthcheck:
      test: ["CMD", "wget", "-q", "--spider", "http://localhost:3000/health"]
      interval: 5s
      timeout: 3s
      retries: 5
      start_period: 5s
    networks: [arcade]

  visualizer:
    build: ./visualizer
    environment:
      PORT: "8090"
      OTLP_PORT: "4318"
      COLLECTOR_METRICS_URL: http://otel-collector-agent:8888/metrics
      GATEWAY_METRICS_URL: http://otel-collector-gateway:8888/metrics
      SCRAPE_INTERVAL_MS: "5000"
      COLLECTOR_CONFIG_PATH: /app/collector-agent-config.yaml
      GATEWAY_CONFIG_PATH: /app/collector-gateway-config.yaml
    volumes:
      - ./collector-agent-config.yaml:/app/collector-agent-config.yaml:ro
      - ./collector-gateway-config.yaml:/app/collector-gateway-config.yaml:ro
    ports:
      - "8090:8090"
      # Visualizer's OTLP receiver is reached by the Collector via the
      # `arcade` network on port 4318; no host port mapping needed.
    networks: [arcade]
    healthcheck:
      test: ["CMD", "wget", "-q", "--spider", "http://localhost:8090/health"]
      interval: 5s
      timeout: 3s
      retries: 5
      start_period: 5s

  loadgen:
    build: ./loadgen
    profiles: ["load"]   # `docker compose --profile load up loadgen` to start.
    environment:
      LOADGEN_RPS: ${LOADGEN_RPS:-5}
      SCORE_API_URL: http://score-api:8080
    depends_on:
      score-api:
        condition: service_healthy
    networks: [arcade]