version: '3'

services:

  mysql-master:
    build: .
    ports:
     - "3320:3306"
    environment:
     - REPLICATION_MASTER=true

  mysql-slave:
    build: .
    ports:
     - "3321:3306"
    environment:
     - REPLICATION_SLAVE=true
     - MYSQL_PORT_3306_TCP_ADDR=127.0.0.1
     - MYSQL_PORT_3306_TCP_PORT=3320