docker-compose.yml

---
# DO NOT USE IN PRODUCTION.
# Docker Compose file to create a database instances FOR TESTING ONLY. Sensitive settings are saved
# in plain text here and service configurations favor convenience over security.
# DO NOT USE IN PRODUCTION.
#
# Recall that MYSQL_ALLOW_EMPTY_PASSWORD allows empty password for root user.
version: '3'
services:
  # mariadb:
    # image: mariadb:latest
    # ports:
      # - '127.0.0.1:3307:3307'
    # volumes:
      # - ./configs/docker/mariadb/conf.d:/etc/mysql/conf.d:ro
      # - ./configs/docker/mariadb/docker-entrypoint-initdb.d:/docker-entrypoint-initdb.d
    # environment:
      # - MYSQL_ALLOW_EMPTY_PASSWORD=yes
      # - MYSQL_PASSWORD=tester
      # - MYSQL_USER=tester
  mysql:
    image: mysql:latest
    ports:
      - '127.0.0.1:3306:3306'
    volumes:
      - ./configs/docker/mysql/conf.d:/etc/mysql/conf.d:ro
      - ./configs/docker/mysql/docker-entrypoint-initdb.d:/docker-entrypoint-initdb.d
    environment:
      - MYSQL_ALLOW_EMPTY_PASSWORD=yes
      - MYSQL_PASSWORD=tester
      - MYSQL_USER=tester
  postgresql:
    image: postgres:alpine
    ports:
      - '127.0.0.1:5432:5432'
    environment:
      - POSTGRES_PASSWORD=tester
      - POSTGRES_USER=tester

...