docker 一键部署redis一主二从三哨兵模式(含密码,数据持久化)

1、 临时关闭selinux然后再打开

关闭selinux：setenforce 0
打开selinux：setenforce 1

2、在当前文件夹创建 redis 目录

mkdir redis-sentinel

3、进入目录 redis

cd  redis

4、创建 docker-compose.yml文件用于部署 redis集群(一主二从)

version: '3.7'
services:
  master:
    image: redis
    container_name: redis-master
    restart: always
    command: redis-server --port 6379 --requirepass lch2199.  --appendonly yes
    ports:
      - 6379:6379
    volumes:
      - /app/data/redis:/data

  slave1:
    image: redis
    container_name: redis-slave-1
    restart: always
    command: redis-server --slaveof 192.168.0.6 6379 --port 6380  --requirepass lch2199. --masterauth lch2199.  --appendonly yes
    ports:
      - 6380:6380
    volumes:
      - /app/data/redis:/data

  slave2:
    image: redis
    container_name: redis-slave-2
    restart: always
    command: redis-server --slaveof 192.168.0.6 6379 --port 6381  --requirepass lch2199. --masterauth lch2199.  --appendonly yes
    ports:
      - 6381:6381
    volumes:
      - /app/data/redis:/data

其中/app/data/redis是宿主主机的路径(/app/data/redis)

5、启动/关闭 redis 集群

启动：docker-compose up -d
关闭：docker-compose down

6、在当前文件夹创建 redis-sentinel 目录

mkdir redis-sentinel

7、进入目录 redis-sentinel

cd  redis-sentinel

8、创建 docker-compose.yml文件用于部署 redis-sentinel

version: '3.7'
services:
  sentinel1:
    image: redis
    container_name: redis-sentinel-1
    command: redis-sentinel /usr/local/etc/redis/sentinel.conf
    restart: always
    ports:
      - 26379:26379
    volumes:
      - ./sentinel1.conf:/usr/local/etc/redis/sentinel.conf

  sentinel2:
    image: redis
    container_name: redis-sentinel-2
    command: redis-sentinel /usr/local/etc/redis/sentinel.conf
    restart: always
    ports:
      - 26380:26379
    volumes:
      - ./sentinel2.conf:/usr/local/etc/redis/sentinel.conf

  sentinel3:
    image: redis
    container_name: redis-sentinel-3
    command: redis-sentinel /usr/local/etc/redis/sentinel.conf
    restart: always
    ports:
      - 26381:26379
    volumes:
      - ./sentinel3.conf:/usr/local/etc/redis/sentinel.conf

9、创建 sentinel.conf文件

port 26379
dir /tmp
# 自定义集群名，其中 192.168.8.188 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 192.168.0.6 6379 2
sentinel down-after-milliseconds mymaster 30000
sentinel parallel-syncs mymaster 1
sentinel auth-pass mymaster test@dbuser2018
sentinel failover-timeout mymaster 180000
sentinel deny-scripts-reconfig yes

10、将sentinel.conf文件复制三份

cp sentinel.conf sentinel1.conf
cp sentinel.conf sentinel2.conf
cp sentinel.conf sentinel3.conf

11、启动/关闭 redis-sentinel 集群

启动：docker-compose up -d
关闭：docker-compose down

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