# Local telemetry stack for Garage: Prometheus (metrics), Jaeger (traces), Grafana (UI).
# Garage is supposed to run on the host separatelty and be reachable on the docker bridge

services:
  prometheus:
    image: docker.io/prom/prometheus:${PROMETHEUS_TAG}
    command:
      - --config.file=/etc/prometheus/prometheus.yml
      - --storage.tsdb.retention.time=7d
    volumes:
      - ./prometheus.yml:/etc/prometheus/prometheus.yml:ro,z
      - prometheus:/prometheus
    ports:
      - "9090:9090"
    extra_hosts:
      - "host.docker.internal:host-gateway"

  jaeger:
    # Jaeger v2 all-in-one: receives OTLP directly, keeps traces in memory
    image: docker.io/jaegertracing/jaeger:${JAEGER_TAG}
    ports:
      - "4317:4317"   # OTLP gRPC (Garage admin.trace_sink)
      - "4318:4318"   # OTLP HTTP
      - "16686:16686" # Jaeger UI

  grafana:
    image: docker.io/grafana/grafana:${GRAFANA_TAG}
    environment:
      # Anonymous viewers can browse dashboards and use Explore;
      # log in as admin/admin to save changes
      GF_AUTH_ANONYMOUS_ENABLED: "true"
      GF_USERS_VIEWERS_CAN_EDIT: "true"
    volumes:
      - ./grafana/provisioning/datasources:/etc/grafana/provisioning/datasources:ro,z
      - ./grafana/provisioning/dashboards:/etc/grafana/provisioning/dashboards:ro,z
      - ./grafana-garage-dashboard-prometheus.json:/etc/grafana/dashboards/garage.json:ro,z
      - grafana:/var/lib/grafana
    ports:
      - "3000:3000"
    depends_on: [prometheus, jaeger]

volumes:
  prometheus:
  grafana: