Redis哨兵模式(Docker)

1. 获取配置

   #----------------------------------------------------------
   拉取镜像 docker pull redis:latest
   #----------------------------------------------------------
   创建容器 docker run --name redis -d redis:latest
   #----------------------------------------------------------
   获取版本 docker exec redis redis-server --version
   #----------------------------------------------------------
   删除容器 docker rm -f redis
   #----------------------------------------------------------
   获取配置 http://download.redis.io/releases 解压获取 redis.conf sentinel.conf
   注意事项 redis.conf sentinel.conf 同镜像中Redis版本必须一致 否则容器启动异常
   #----------------------------------------------------------

2. 编辑配置

   #----------------------------------------------------------
   /opt/redis/conf/redis_6380.conf |# bind 127.0.0.1 -::1|protected-mode no|appendonly yes|appendfsync always|# appendfsync everysec|port 6380|
   /opt/redis/conf/redis_6381.conf |# bind 127.0.0.1 -::1|protected-mode no|appendonly yes|appendfsync always|# appendfsync everysec|port 6381|
   /opt/redis/conf/redis_6382.conf |# bind 127.0.0.1 -::1|protected-mode no|appendonly yes|appendfsync always|# appendfsync everysec|port 6382|
   #-------------------------主从模式-------------------------
   /opt/redis/conf/redis_6381.conf |replicaof <host-ip> 6380|
   /opt/redis/conf/redis_6382.conf |replicaof <host-ip> 6380|
   #-------------------------哨兵模式-------------------------
   /opt/redis/conf/sentinel_26380.conf |# bind 127.0.0.1 192.168.1.1|protected-mode no|sentinel monitor mymaster <host-ip> 6380 1|sentinel down-after-milliseconds mymaster 5000|sentinel failover-timeout mymaster 10000|port 26380|
   /opt/redis/conf/sentinel_26381.conf |# bind 127.0.0.1 192.168.1.1|protected-mode no|sentinel monitor mymaster <host-ip> 6380 1|sentinel down-after-milliseconds mymaster 5000|sentinel failover-timeout mymaster 10000|port 26381|
   /opt/redis/conf/sentinel_26382.conf |# bind 127.0.0.1 192.168.1.1|protected-mode no|sentinel monitor mymaster <host-ip> 6380 1|sentinel down-after-milliseconds mymaster 5000|sentinel failover-timeout mymaster 10000|port 26382|
   #----------------------------------------------------------

3. 一主二从

   #-------------------------一主二从-------------------------
   docker rm -f redis_6380 redis_6381 redis_6382
   #----------------------------------------------------------
   docker run --name redis_6380 \
   --restart=always \
   --network host \
   -v /opt/redis/conf/redis_6380.conf:/etc/redis/redis.conf \
   -v /opt/redis/data/6380:/data \
   -d redis:latest \
   redis-server /etc/redis/redis.conf
   #----------------------------------------------------------
   docker run --name redis_6381 \
   --restart=always \
   --network host \
   -v /opt/redis/conf/redis_6381.conf:/etc/redis/redis.conf \
   -v /opt/redis/data/6381:/data \
   -d redis:latest \
   redis-server /etc/redis/redis.conf
   #----------------------------------------------------------
   docker run --name redis_6382 \
   --restart=always \
   --network host \
   -v /opt/redis/conf/redis_6382.conf:/etc/redis/redis.conf \
   -v /opt/redis/data/6382:/data \
   -d redis:latest \
   redis-server /etc/redis/redis.conf
   #----------------------------------------------------------
   firewall-cmd --zone=public --add-port=6380/tcp --permanent && firewall-cmd --reload
   firewall-cmd --zone=public --add-port=6381/tcp --permanent && firewall-cmd --reload
   firewall-cmd --zone=public --add-port=6382/tcp --permanent && firewall-cmd --reload
   #----------------------------------------------------------
   # 主从模式下 主节点可以增删改查 从节点只能查 主节点宕机则集群只能查 主节点恢复则集群自动恢复
   #----------------------------------------------------------

4. 三个哨兵

   #-------------------------三个哨兵-------------------------
   docker rm -f sentinel_26380 sentinel_26381 sentinel_26382
   #----------------------------------------------------------
   docker run --name sentinel_26380 \
   --restart=always \
   --network host \
   -v /opt/redis/conf/sentinel_26380.conf:/etc/redis/sentinel.conf \
   -d redis:latest \
   redis-sentinel /etc/redis/sentinel.conf
   #----------------------------------------------------------
   docker run --name sentinel_26381 \
   --restart=always \
   --network host \
   -v /opt/redis/conf/sentinel_26381.conf:/etc/redis/sentinel.conf \
   -d redis:latest \
   redis-sentinel /etc/redis/sentinel.conf
   #----------------------------------------------------------
   docker run --name sentinel_26382 \
   --restart=always \
   --network host \
   -v /opt/redis/conf/sentinel_26382.conf:/etc/redis/sentinel.conf \
   -d redis:latest \
   redis-sentinel /etc/redis/sentinel.conf
   #----------------------------------------------------------
   firewall-cmd --zone=public --add-port=26380/tcp --permanent && firewall-cmd --reload
   firewall-cmd --zone=public --add-port=26381/tcp --permanent && firewall-cmd --reload
   firewall-cmd --zone=public --add-port=26382/tcp --permanent && firewall-cmd --reload
   #----------------------------------------------------------
   # 哨兵模式下 主节点宕机 从节点被切换为主节点 主节点恢复后变为从节点 哨兵数量至少2个 否则无法执行切换
   #----------------------------------------------------------

5. 项目配置

   #----------------------------------------------------------
   spring:
     redis:
       sentinel:
         master: mymaster # 哨兵模式下的主节点名称
         nodes: <host-ip>:26380,<host-ip>:26381,<host-ip>:26382 # 哨兵节点的地址列表
         password: ''  # 设置哨兵节点的密码
       lettuce:
         pool:
           max-active: 8   # 最大连接数据库连接数,设 0 为没有限制
           max-idle: 8     # 最大等待连接中的数量,设 0 为没有限制
           max-wait: -1ms  # 最大建立连接等待时间。如果超过此时间将接到异常。设为-1表示无限制。
           min-idle: 0     # 最小等待连接中的数量,设 0 为没有限制
         shutdown-timeout: 100ms
   #----------------------------------------------------------
   	@Value("${spring.redis.sentinel.nodes}")
   	private String sentinelNodes;
   
   	@Value("${spring.redis.sentinel.master}")
   	private String sentinelMaster;
   
   	@Value("${spring.redis.sentinel.password}")
   	private String sentinelPassword;
   
       public RedisCacheManager redisCacheManager() {
           log.info("===============(1)创建缓存管理器RedisCacheManager");
           RedisCacheManager redisCacheManager = new RedisCacheManager();
           redisCacheManager.setRedisManager(redisManager());
           //redis中针对不同用户缓存(此处的id需要对应user实体中的id字段,用于唯一标识)
           redisCacheManager.setPrincipalIdFieldName("id");
           //用户权限信息缓存时间
           redisCacheManager.setExpire(200000);
           return redisCacheManager;
       }
   
   	@Bean
   	public RedisManager redisManager() {
   		log.info("===============(2)创建RedisManager,连接Redis..URL= " + sentinelNodes + ", masterName=" + sentinelMaster);
   		RedisManager redisManager = new RedisManager();
   		redisManager.setHost(sentinelNodes);
   		if (!StringUtils.isEmpty(sentinelPassword)) {
   			redisManager.setPassword(sentinelPassword);
   		}
   		return redisManager;
   	}
   #----------------------------------------------------------