docker-compose.yml

services:
  # It creates a network for the services
  base:
    image: registry.k8s.io/pause:3.8

  postgres:
    image: ghcr.io/sergelogvinov/postgresql:15.6
    shm_size: 1g
    # It uses the network created by the base service
    network_mode: "service:base"
    # Disable fsync to speed up the tests
    command: -c fsync=off
    # Default user and password
    environment:
      - POSTGRES_USER=myservice
      - POSTGRES_PASSWORD=myservice
      - POSTGRES_DB=myservice

    # Docker will wait for the service to be ready before continuing (depends_on)
    healthcheck:
      test: ["CMD-SHELL", "psql -U myservice -d myservice -c 'SELECT 1'"]
      interval: 10s
      timeout: 5s
      retries: 10
      start_period: 10s

  unittest:
    build:
      context: .
      target: release
      dockerfile: Dockerfile
    # It uses the network created by the base service
    network_mode: "service:base"
    # Run the container, than we can run the tests inside the container
    command: /pause
    depends_on:
      - postgres