services:
  postgres:
    image: postgres:16.4
    shm_size: 256mb
    command: |
        postgres
          -c shared_preload_libraries=pg_stat_statements
          -c pg_stat_statements.track=all
          -c max_connections=200
          -c shared_buffers=256MB
          -c effective_cache_size=8GB
          -c work_mem=16MB
          -c maintenance_work_mem=128MB
          -c min_wal_size=128MB
          -c max_wal_size=2GB
          -c checkpoint_completion_target=0.9
          -c wal_buffers=16MB
          -c default_statistics_target=100
    ports:
      - 5432:5432
    volumes:
      - postgres-volume:/var/lib/postgresql/data
    environment:
      - POSTGRES_DB=postgres
      - POSTGRES_USER=postgres
      - POSTGRES_PASSWORD=postgres

  grafana:
    image: grafana/grafana:11.1.4
    shm_size: 256mb
    ports:
      - 3000:3000
    extra_hosts:
      - "host.docker.internal:host-gateway"
    volumes:
      - grafana-volume:/var/lib/grafana
      - ./deploy/grafana-ds.yaml:/etc/grafana/provisioning/datasources/datasources.yaml

  prometheus:
    image: prom/prometheus:v2.54.0
    shm_size: 256mb
    user: root
    ports:
      - 9090:9090
    extra_hosts:
      - "host.docker.internal:host-gateway"
    volumes:
      - prometheus-volume:/etc/prometheus
      - ./deploy/prometheus.yml:/etc/prometheus/prometheus.yml

  node_exporter:
    image: quay.io/prometheus/node-exporter:latest
    command:
      - '--path.rootfs=/host'
    ports:
      - 9100:9100
    extra_hosts:
      - "host.docker.internal:host-gateway"
    pid: host
    volumes:
      - '/:/host:ro,rslave'

  otel-collector:
    image: otel/opentelemetry-collector-contrib:0.108.0
    volumes:
      - ./deploy/otel-collector.yaml:/etc/otelcol-contrib/config.yaml
    ports:
      - 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

  tempo-init:
    image: &tempoImage grafana/tempo:2.3.1
    user: root
    entrypoint:
      - "chown"
      - "10001:10001"
      - "/var/tempo"
    volumes:
      - tempo-volume:/var/tempo

  tempo:
    image: *tempoImage
    command: [ "-config.file=/etc/tempo.yaml" ]
    volumes:
      - ./deploy/tempo.yaml:/etc/tempo.yaml
      - tempo-volume:/var/tempo
    depends_on:
      - tempo-init

  # backend:
  #   build: .
  #     # dockerfile: ./dockerfile
  #   volumes:
  #     - ./:/app
  #   ports:
  #     - 8080:8080

volumes:
  postgres-volume:
  grafana-volume:
  tempo-volume:
  prometheus-volume: