docker 搭建 redis 集群（哨兵模式）

文件结构

1. redis-sentinel

 1-1.  docker-compose.yml

1-2. sentinel

   1-2-1 docker-compose.yml
   
  1-2-2 sentinel.conf
   
  1-2-3 sentinel1.conf
  
  1-2-4 sentinel2.conf
  
  1-2-5 sentinel3.conf

1、docker-compose 文件实现一主两从

编写docker-compose.yml文件，内容如下：

version: '3.7'
services:
  master:
    image: redis
    container_name: redis-master
    restart: always
    command: redis-server --requirepass GaosiDev --masterauth GaosiDev  
    ports:
      - 6380:6379

  slave1:
    image: redis
    container_name: redis-slave-1
    restart: always
    command: redis-server --slaveof redis-master 6379  --requirepass GaosiDev --masterauth GaosiDev  
    ports:
      - 6381:6379


  slave2:
    image: redis
    container_name: redis-slave-2
    restart: always
    command: redis-server --slaveof redis-master 6379  --requirepass GaosiDev --masterauth GaosiDev  
    ports:
      - 6382:6379

docker-compose 文件实现 sentinel

version: '2'
services:
  sentinel1:
    image: redis       ## 镜像
    container_name: redis-sentinel-1
    ports:
    - "26379:26379"
    command: redis-sentinel /usr/local/etc/redis/sentinel.conf
    volumes:
    - "./sentinel1.conf:/usr/local/etc/redis/sentinel.conf"
  sentinel2:
    image: redis                ## 镜像
    container_name: redis-sentinel-2
    ports:
    - "26380:26379"           
    command: redis-sentinel /usr/local/etc/redis/sentinel.conf
    volumes:
    - "./sentinel2.conf:/usr/local/etc/redis/sentinel.conf"
  sentinel3:
    image: redis                ## 镜像
    container_name: redis-sentinel-3
    ports:
    - "26381:26379"           
    command: redis-sentinel /usr/local/etc/redis/sentinel.conf
    volumes:
    - ./sentinel3.conf:/usr/local/etc/redis/sentinel.conf
networks:
  default:
    external:
      name: redis-sentinel_default    ##通过（docker inspect 主节点容器id）来查看，对应 NetworkMode 

编辑 sentinel.conf 文件

port 26379
dir /tmp
#172.18.0.3填写自己的主节点ip，通过（docker inspect 主节点容器id）来查看，对应 IPAddress
sentinel monitor mymaster 172.17.0.4 6379 2
sentinel auth-pass mymaster GaosiDev 
sentinel down-after-milliseconds mymaster 30000
sentinel parallel-syncs mymaster 1
sentinel failover-timeout mymaster 10000  
sentinel deny-scripts-reconfig yes

参考链接

https://www.cnblogs.com/ruiyeclub/p/12355073.html

https://www.cnblogs.com/JulianHuang/p/12650721.html