services:

  postgres:
    image: postgres:17.5-alpine3.21
    hostname: postgres
    networks:
      - postgres_net
      - traefik_traefik_proxy
    # or set shared memory limit when deploy via swarm stack
    deploy:
      mode: replicated
      replicas: 1
      restart_policy:
        condition: on-failure
      labels:
        # Custom labels
        - "com.xbazzi.stack=postgresql"
        - "com.xbazzi.critical=true"

      placement:
        constraints:
          - node.hostname == db1
    volumes:
      - /var/lib/postgresql/data:/var/lib/postgresql/data
    #  - type: tmpfs
    #    target: /dev/shm
    #    tmpfs:
    #      size: 134217728 # 128*2^20 bytes = 128Mb
    environment:
      POSTGRES_PASSWORD: password

  adminer:
    image: adminer
    networks:
      - postgres_net
      - traefik_traefik_proxy
    deploy:
      mode: replicated
      replicas: 1
      restart_policy:
        condition: on-failure
      labels:
        # Enable Service discovery for Traefik
        - "traefik.enable=true"
        # Define the nginx router rule
        - "traefik.http.routers.adminer.rule=Host(`adminer.lan.xbazzi.com`)"
        # Expose nginx on the HTTPS entrypoint
        - "traefik.http.routers.adminer.entrypoints=websecure"
        # Enable TLS
        - "traefik.http.routers.adminer.tls=true"
        # Expose the nginx port number to Traefik
        - "traefik.http.services.adminer.loadbalancer.server.port=8080"

        # Custom labels
        - "com.xbazzi.stack=adminer"
        - "com.xbazzi.critical=true"
      placement:
        constraints:
          - node.hostname == db1

networks:
  postgres_net:
    driver: overlay
    attachable: true
    
  traefik_traefik_proxy:
    external: true