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

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docker 搭建 redis 集群(Redis-Cluster集群)讲解
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