首先 准备一个配置文件路径 

mkdir /usr/local/etc/redis/sentinel/sentinel -p

cd /usr/local/etc/redis/sentinel/sentinel

配置三个哨兵的配置文件 我们设置端口 号 26379、26380 、26381 

 配置主机点  

从节点的 配置 

运行 compose.yml 文件

文件存在  

cd /usr/local/etc/redis/sentinel/sentinel

vi docker-compose.yml

version: '3'

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services:

  redis-sentinel-1:

    image: redis

    container_name: redis-sentinel-1

    restart: always

    # 为了规避Docker中端口映射可能带来的问题

    # 这里选择使用host网络

    network_mode: host

    volumes:

      - ./redis-sentinel-1.conf:/usr/local/etc/redis/redis-sentinel.conf

    # 指定时区，保证容器内时间正确

    environment:

      TZ: "Asia/Shanghai" 

    command: ["redis-sentinel", "/usr/local/etc/redis/redis-sentinel.conf"]

  redis-sentinel-2:

    image: redis

    container_name: redis-sentinel-2

    restart: always

    network_mode: host

    volumes:

      - ./redis-sentinel-2.conf:/usr/local/etc/redis/redis-sentinel.conf

    environment:

      TZ: "Asia/Shanghai" 

    command: ["redis-sentinel", "/usr/local/etc/redis/redis-sentinel.conf"]

  redis-sentinel-3:

    image: redis

    container_name: redis-sentinel-3

    restart: always

    network_mode: host

    volumes:

      - ./redis-sentinel-3.conf:/usr/local/etc/redis/redis-sentinel.conf

    environment:

      TZ: "Asia/Shanghai"

    command: ["redis-sentinel", "/usr/local/etc/redis/redis-sentinel.conf"]


在dockers 里面 运行 启动  

cd /usr/local/etc/redis/sentinel/server

docker-compose up -d

cd /usr/local/etc/redis/sentinel/sentinel

docker-compose up -d

#查看主从信息

info replication

测试 

停止主节点

docker stop redis-server-master

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#进入从1redis-server-slave-1查看角色是否被修过为主节点

docker exec -it redis-server-slave-1 /bin/bash

redis-cli -p 6380 -a 123456

info replication

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#进入从1redis-server-slave-2查看角色是否被修过为主节点

docker exec -it redis-server-slave-2 /bin/bash

redis-cli -p 6381 -a 123456

info replication

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