docker-compose.yml

version: '3.2'

# This example starts a database, prepares some test data, 
# runs some kind of test and finally shuts down the database

services:
  test-database:
    image: mariadb:latest 
    environment:
      MARIADB_ROOT_PASSWORD: "ganzgeheim"
      MARIADB_PASSWORD: "geheim"
      MARIADB_USER: "testuser"
      MARIADB_DATABASE: "testdb"
    container_name: mytest
    ports:
      - "3306:3306"

  prepare:
    image: prepare:latest
    build:
      context: prepare
    depends_on:
      test-database:
        condition: service_started
    network_mode: service:test-database

  test-app:
    image: test-app
    build:
      context: testapp
    depends_on:
      prepare:
        condition: service_completed_successfully
    network_mode: service:test-database

  shutdown:
    image: shutdown:latest
    build:
      context: shutdown
    depends_on:
      test-app:
        condition: service_completed_successfully
    volumes:
      - "/var/run/docker.sock:/var/run/docker.sock"