services:
  redis-master:
    image: redis:7-alpine
    command: redis-server --appendonly yes
    volumes:
      - redis-data:/data
    ports:
      - "6379:6379"

  redis-replica:
    image: redis:7-alpine
    command: redis-server --replicaof redis-master 6379
    depends_on:
      - redis-master

  redis-sentinel:
    image: redis:7-alpine
    command: redis-sentinel /etc/redis/sentinel.conf
    volumes:
      - ./sentinel.conf:/etc/redis/sentinel.conf
    depends_on:
      - redis-master
      - redis-replica

volumes:
  redis-data:

port 26379
sentinel monitor mymaster redis-master 6379 2
sentinel down-after-milliseconds mymaster 5000
sentinel failover-timeout mymaster 10000