Redis HA
Docker 搭建 Redis 集群
基于4.0.14版本搭建一主两从环境，docker-compose.yml 配置如下：
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version: '3.1'
services:
master:
image: redis:4.0.14
container_name: redis-master
ports:
- 6379:6379
slave1:
image: redis:4.0.14
container_name: redis-slave-1
ports:
- 6380:6379
command: redis-server --slaveof redis-master 6379
slave2:
image: redis:4.0.14
container_name: redis-slave-2
ports:
- 6381:6379
command: redis-server --slaveof redis-master 6379
Docker 搭建 Redis Sentinel 集群
- 需要三份 sentinel.conf 配置文件，分别为：
sentinel1.conf，sentinel2.conf，sentinel3.conf，配置文件内容相同1 2 3 4 5 6 7 8
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
-
基于
4.0.14版本，需要创建三个Redis Sentinel 服务，docker-compose.yml 配置如下：1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28
version: '3.1' services: sentinel1: image: redis:4.0.14 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:4.0.14 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:4.0.14 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
检查集群
查看集群是否生效,进入 Sentinel 容器
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docker exec -it redis-sentinel-1 /bin/bash
redis-cli -p 26379
sentinel master mymaster
sentinel slaves mymaster