gc_index_relay/compose.yaml

services:
  postgres:
    image: docker.io/apache/age:release_PG17_1.6.0
    container_name: postgress_01
    restart: unless-stopped
    # Host port matches setup.sh, .env.example, and config defaults (5455 → container 5432).
    ports:
      - "5455:5432"
    # Named volume avoids host uid mismatches (do not combine image postgres user with user: 1000 + ./pgdata).
    volumes:
      - pgdata:/var/lib/postgresql/data
    environment:
      POSTGRES_DB: ${POSTGRES_DB:-gc_index_relay_dev}
      POSTGRES_USER: ${POSTGRES_USER:-postgres}
      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-postgres}
    command: >
            postgres
    deploy:
      resources:
        limits:
          cpus: "1.00"
          memory: 1G
        reservations:
          cpus: "0.50"
          memory: 512M
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U ${POSTGRES_USER:-postgres} -d ${POSTGRES_DB:-gc_index_relay_dev}"]
      interval: 10s
      timeout: 5s
      retries: 5

  setup:
    build:
      context: .
      dockerfile: ./docker/setup.Dockerfile
    command: ["/usr/local/bin/usersetup.sh"]
    restart: no
    depends_on:
      postgres:
        condition: service_healthy
    environment:
      # Docker DNS name of this service (not localhost from .env — that is for host-side mix).
      POSTGRES_HOST: postgres
      POSTGRES_USER: ${POSTGRES_USER:-postgres}
      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-postgres}
      POSTGRES_DB: ${POSTGRES_DB:-gc_index_relay_dev}
      POSTGRES_RUNTIME_USER: ${POSTGRES_RUNTIME_USER:-gc_index_relay}
      POSTGRES_RUNTIME_PASSWORD: ${POSTGRES_RUNTIME_PASSWORD:-gc_index_relay_runtime}

  migrator:
    build:
      context: .
      dockerfile: ./docker/server.Dockerfile
    command: ["/app/bin/migrate"]
    restart: no
    depends_on:
      postgres:
        condition: service_healthy
      setup:
        condition: service_completed_successfully
    environment:
      # Inside the compose network Postgres listens on 5432; 5455 is only the host publish port.
      DATABASE_URL: "ecto://${POSTGRES_USER:-postgres}:${POSTGRES_PASSWORD:-postgres}@postgres:5432/${POSTGRES_DB:-gc_index_relay_dev}"
      SECRET_KEY_BASE: ${SECRET_KEY_BASE:-0000000000000000000000000000000000000000000000000000000000000000}

  mercury:
    build:
      context: .
      dockerfile: ./docker/server.Dockerfile
    command: ["/app/bin/server"]
    restart: unless-stopped
    depends_on:
      postgres:
        condition: service_healthy
      migrator:
        condition: service_completed_successfully
    ports:
      - "4000:4000"
    environment:
      DATABASE_URL: "ecto://${POSTGRES_RUNTIME_USER:-gc_index_relay}:${POSTGRES_RUNTIME_PASSWORD:-gc_index_relay_runtime}@postgres:5432/${POSTGRES_DB:-gc_index_relay_dev}"
      SECRET_KEY_BASE: ${SECRET_KEY_BASE:-0000000000000000000000000000000000000000000000000000000000000000}

volumes:
  pgdata: