一、基础概览
1、redis集群最少需要6个节点，且redis集群下只有db0,不支持多db。
2、开放端口
节点访问：6391-6393
集群连接：16391-16393
二、准备容器挂载的目录
1.创建根目录
mkdir /server cd /server
2.创建容器目录。然后给每个节点创建对应的目录和配置文件
服务器1 192.168.79.131 init.sh
for port in$(seq 6391 6393); \ do \ mkdir-p /server/redis-cluster/redis-node-${port}/{conf,data} touch /server/redis-cluster/redis-node-${port}/conf/redis.conf cat << EOF >/server/redis-cluster/redis-node-${port}/conf/redis.conf #端口port ${port}bind 0.0.0.0 #启用集群模式cluster-enabled yescluster-config-file nodes.conf #超时时间cluster-node-timeout 5000# 集群连接地址及端口cluster-announce-ip 192.168.79.131 cluster-announce-port ${port}cluster-announce-bus-port 1${port}appendonly yes#集群加密masterauth 123456requirepass 123456EOF done
服务器2 192.168.79.132 init.sh
for port in$(seq 6391 6393); \ do \ mkdir-p /server/redis-cluster/redis-node-${port}/{conf,data} touch /server/redis-cluster/redis-node-${port}/conf/redis.conf cat << EOF >/server/redis-cluster/redis-node-${port}/conf/redis.conf #端口port ${port}bind 0.0.0.0 #启用集群模式cluster-enabled yescluster-config-file nodes.conf #超时时间cluster-node-timeout 5000# 集群连接地址及端口cluster-announce-ip 192.168.79.132 cluster-announce-port ${port}cluster-announce-bus-port 1${port}protected-mode no appendonly yes#集群加密masterauth 123456requirepass 123456EOF done
三、使用 docker-compose.yml 运行 redis 容器
version: '3'services: redis1: container_name: redis1 image: redis:7.0.5 network_mode: host restart: always volumes: - /server/redis-cluster/redis-node-6391/conf/redis.conf:/etc/redis/redis.conf - /server/redis-cluster/redis-node-6391/data:/data environment: -TZ=Asia/Shanghai -LANG=en_US.UTF-8 ports: -'6391:6379'#服务端口-'16391:16379'#集群端口 command: ["redis-server", "/etc/redis/redis.conf"] privileged: true#环境变量 redis2: container_name: redis2 image: redis:7.0.5 network_mode: host restart: always volumes: - /server/redis-cluster/redis-node-6392/conf/redis.conf:/etc/redis/redis.conf - /server/redis-cluster/redis-node-6392/data:/data environment: -TZ=Asia/Shanghai -LANG=en_US.UTF-8 ports: -'6392:6379'#服务端口-'16392:16379'#集群端口 command: ["redis-server", "/etc/redis/redis.conf"] privileged: true#环境变量 redis3: container_name: redis3 image: redis:7.0.5 network_mode: host restart: always volumes: - /server/redis-cluster/redis-node-6393/conf/redis.conf:/etc/redis/redis.conf - /server/redis-cluster/redis-node-6393/data:/data environment: -TZ=Asia/Shanghai -LANG=en_US.UTF-8 ports: -'6393:6379'#服务端口-'16393:16379'#集群端口 command: ["redis-server", "/etc/redis/redis.conf"] privileged: true#环境变量
分别在两台服务器上执行
docker-compose up -d
四、组建 redis 集群
随便进一台服务器进行配置
进入某一个容器
docker exec -it redis1 /bin/bash
组建集群
redis-cli -p6391-a123456--cluster create 192.168.79.131:6391 192.168.79.131:6392 192.168.79.131:6393 192.168.79.132:6391 192.168.79.132:6392 192.168.79.132:6393 --cluster-replicas1
输入yes即可
五、查看集群信息
主从关系
redis-cli -p6391-a123456#查看节点cluster nodes
