redis哨兵模式(一主二从三哨兵)

 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:

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  redis-sentinel-1:

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    image: redis

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    container_name: redis-sentinel-1

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    restart: always

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    # 为了规避Docker中端口映射可能带来的问题

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    # 这里选择使用host网络

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    network_mode: host

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    volumes:

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

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    # 指定时区，保证容器内时间正确

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    environment:

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      TZ: "Asia/Shanghai" 

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

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  redis-sentinel-2:

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    image: redis

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    container_name: redis-sentinel-2

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    restart: always

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    network_mode: host

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    volumes:

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

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    environment:

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      TZ: "Asia/Shanghai" 

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

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  redis-sentinel-3:

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    image: redis

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    container_name: redis-sentinel-3

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    restart: always

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    network_mode: host

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    volumes:

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

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    environment:

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      TZ: "Asia/Shanghai"

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    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

 

​

 

#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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