compose_for_testing.yaml

services:
    db:
      image: postgres:alpine
      restart: always
      environment:
        POSTGRES_PASSWORD: changeme          # don't do this
        PGUSER: postgres                     # don't do this
      healthcheck:
        test: ["CMD-SHELL", "pg_isready"]
        interval: 1s
        timeout: 5s
        retries: 10
      ports:
        - 5432:5432
      networks:
        - backend

    adminer:
      image: adminer
      restart: always
      ports:
        - 8080:8080
      networks:
        - backend

          #    api:
          #      build: ./Dockerfile.testing
          #      depends_on:
          #        db:
          #          condition: service_healthy
          #      ports:
          #        - 3000:3000
          #      networks:
          #        - backend

networks:
  backend:
    driver: bridge