version: '2.3'
services:
    mysql2:
        image: mysql:5.7
        restart: always
        environment:
            MYSQL_ROOT_PASSWORD: clickhouse
        ports:
            - 3348:3306
    mysql3:
        image: mysql:5.7
        restart: always
        environment:
            MYSQL_ROOT_PASSWORD: clickhouse
        ports:
            - 3388:3306
    mysql4:
        image: mysql:5.7
        restart: always
        environment:
            MYSQL_ROOT_PASSWORD: clickhouse
        ports:
            - 3368:3306