version: '3' services: master: image: redis container_name: redis-master command: redis-server ports: - 6480:6379 slave1: image: redis container_name: redis-slave-1 ports: - 6481:6379 command: redis-server --slaveof redis-master 6379 slave2: image: redis container_name: redis-slave-2 ports: - 6482:6379 command: redis-server --slaveof redis-master 6379