Redis高可用方案一主多从+哨兵

sudo mkdir -p /etc/docker
sudo tee /etc/docker/daemon.json <<-'EOF'
{
  "registry-mirrors": ["https://99pqbp6o.mirror.aliyuncs.com"]
}
EOF
sudo systemctl daemon-reload
sudo systemctl restart docker

sudo pip install docker-compose

我要进入到创建文件夹的目录
cd /usr/local


我要创建的目录
mkdir docker


与上面同理
cd docker


mkdir redis
cd redis


vi docker-compose.yml
按一下  i 键进入编辑模式


version: '3.1'
services:
  master:
    image: redis
    container_name: redis-master
    ports:
      - 6379:6379


  slave1:
    image: redis
    container_name: redis-slave-1
    ports:
      - 6380:6379
    command: redis-server --slaveof redis-master 6379


  slave2:
    image: redis
    container_name: redis-slave-2
    ports:
      - 6381:6379
    command: redis-server --slaveof redis-master 6379
:!wq


保存退出


运行这样，一主多从的redis环境搭好了，还差个，集群的哨兵模式
docker-compose up -d

cd /usr/local/docker
mkdir sentinel
cd sentinel


vi docker-compose.yml


按一下  i 键进入编辑模式


version: '3.1'
services:
  sentinel1:
    image: redis
    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
    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
    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
 :!wq
 
 //下面的操作来三次  文件名 sentinel1.conf  sentinel2.conf  sentinel1.conf
 //名字是死的，和上面的数据卷要对应好
 vi sentinel1.conf
 
 port 26379
dir /tmp
# 自定义集群名，其中 127.0.0.1 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 127.0.0.1 6379 2
sentinel down-after-milliseconds mymaster 30000
sentinel parallel-syncs mymaster 1
sentinel failover-timeout mymaster 180000
sentinel deny-scripts-reconfig yes
 

docker exec -it redis-sentinel-1 /bin/bash
redis-cli -p 26379
sentinel master mymaster
sentinel slaves mymaster