version: "3.4"

services:
  maria-db:
    image: mariadb
    volumes:
      - "./db/mariadb:/docker-entrypoint-initdb.d"
    networks:
      - default
    ports:
      - "8084:3306"
    environment:
      #- "MARIADB_USER=root"
      - "MARIADB_ROOT_PASSWORD=admin_pass"
    command: --transaction-isolation=READ-COMMITTED --binlog-format=ROW

  mysql-db:
    image: mysql
    volumes:
      - "./db/mysql:/docker-entrypoint-initdb.d"
    networks:
      - default
    ports:
      - "8086:3306"
    environment:
      #- "MYSQL_USER=root"
      - "MYSQL_ROOT_PASSWORD=admin_pass"
    command: --default-authentication-plugin=mysql_native_password

  postgres-db:
    image: postgres
    volumes:
      - "./db/postgres:/docker-entrypoint-initdb.d"
    networks:
      - default
    ports:
      - "8087:5432"
    environment:
      - "POSTGRES_USER=admin"
      - "POSTGRES_PASSWORD=admin_pass"

  ui:
    image: adminer
    restart: always
    networks:
      - default
    ports:
      - "8083:8080"
    depends_on:
      - mysql-db
      - postgres-db