docker-compose搭建redis集群之哨兵模式

# 哨兵sentinel实例运行的端口 默认26379  
port 26379
# 哨兵sentinel的工作目录
dir /tmp
# 自定义集群名，其中 192.168.2.2 为 redis-master 的 ip，6379 为 redis-master 的端口，2 为最小投票数（因为有 3 台 Sentinel 所以可以设置成 2）
sentinel monitor mymaster 192.168.2.2 6379 2
# 指定多少毫秒之后 主节点没有应答哨兵sentinel 此时 哨兵主观上认为主节点下线 默认30秒  
sentinel down-after-milliseconds mymaster 30000
sentinel parallel-syncs mymaster 1
sentinel auth-pass mymaster 123456
sentinel failover-timeout mymaster 180000
sentinel deny-scripts-reconfig yes

version: '3.7'
services:
  sentinel1:
    image: redis
    container_name: redis-sentinel-1
    command: redis-sentinel /usr/local/etc/redis/sentinel.conf
    restart: always
    ports:
      - 26379:26379
    volumes:
      - /home/redis-sentinel/sentinel.conf:/usr/local/etc/redis/sentinel.conf

version: '3.7'
services:
    sentinel2:
        image: redis
        container_name: redis-sentinel-2
        command: redis-sentinel /usr/local/etc/redis/sentinel.conf
        restart: always
        ports:
          - 26379:26379
        volumes:
          - /home/redis-sentinel/sentinel.conf:/usr/local/etc/redis/sentinel.conf

version: '3.7'
services:
    sentinel3:
        image: redis
        container_name: redis-sentinel-2
        command: redis-sentinel /usr/local/etc/redis/sentinel.conf
        restart: always
        ports:
          - 26379:26379
        volumes:
          - /home/redis-sentinel/sentinel.conf:/usr/local/etc/redis/sentinel.conf

# 查看redis-sentinel是否启动成功
docker ps 
# 进入redis-sentinel容器中,查看redis连接状态
docker exec -it 容器id bash
redis-cli -p 26379
# 执行如下命令,查看redis主信息
sentinel master mymaster

 # 执行如下命令,查看从redis信息是否正常
sentinel slaves mymaster