docker-compose.yml

services:
  app:
    build: ./app
    environment:
      - OTEL_SERVICE_NAME=my-app
      - OTEL_EXPORTER_METRICS_ENDPOINT=http://otel-collector:4317
      - OTEL_EXPORTER_TRACES_ENDPOINT=http://jaeger:4317
    ports:
      - "8080:8080"
    depends_on:
      - otel-collector
      - jaeger
    networks:
      - otel-net

  otel-collector:
    image: otel/opentelemetry-collector:latest
    command: ["--config=/etc/otel-collector-config.yaml"]
    volumes:
      - ./otel-collector-config.yaml:/etc/otel-collector-config.yaml
    ports:
      - "1888:1888" # pprof extension
      - "8888:8888" # Prometheus metrics exposed by the Collector
      - "8889:8889" # Prometheus exporter metrics
      - "13133:13133" # health_check extension
      - "4317:4317" # OTLP gRPC receiver
      - "4318:4318" # OTLP http receiver
      - "55679:55679" # zpages extension
    networks:
      - otel-net

  jaeger:
    image: jaegertracing/all-in-one:latest
    environment:
      - COLLECTOR_ZIPKIN_HOST_PORT=:9411
    ports:
      - "16686:16686"  # Jaeger UI
      - "14317:4317" # OTLP gRPC receiver
      - "14318:4318" # OTLP HTTP receiver
      - "9411:9411"
    networks:
      - otel-net

  prometheus:
    image: prom/prometheus:latest
    volumes:
      - ./prometheus.yml:/etc/prometheus/prometheus.yml
    ports:
      - "9090:9090"
    networks:
      - otel-net

  grafana:
    image: grafana/grafana:latest
    ports:
      - "3000:3000"
    environment:
      - GF_SECURITY_ADMIN_PASSWORD=admin
      - GF_PATHS_PROVISIONING=/etc/grafana/provisioning
      - GF_AUTH_ANONYMOUS_ENABLED=true
      - GF_AUTH_ANONYMOUS_ORG_ROLE=Admin
      - GF_FEATURE_TOGGLES_ENABLE=alertingSimplifiedRouting,alertingQueryAndExpressionsStepMode
    entrypoint:
      - sh
      - -euc
      - |
        mkdir -p /etc/grafana/provisioning/datasources
        cat <<EOF > /etc/grafana/provisioning/datasources/ds.yaml
        apiVersion: 1
        datasources:
        - name: Prometheus
          type: prometheus
          orgId: 1
          url: http://prometheus:9090
          basicAuth: false
          isDefault: true
          version: 1
          editable: false
        - name: Loki
          type: loki
          access: proxy
          orgId: 1
          url: http://loki:3100
          basicAuth: false
          isDefault: false
          version: 1
          editable: false
        - name: Jaeger
          type: jaeger
          access: proxy
          orgId: 1
          url: http://jaeger:16686
          basicAuth: false
          isDefault: false
          version: 1
          editable: false
        EOF
        /run.sh
    networks:
      - otel-net
    depends_on:
      - prometheus

  loki:
    image: grafana/loki:latest
    ports:
      - "3100:3100"
    networks:
      - otel-net

networks:
  otel-net:
    driver: bridge