1、查询最新redis镜像
docker search redis
2、下载redis镜像
docker pull redis
3、创建一个文件夹，以及创建redis-cluster.tmpl模板文件
mkdir redis-cluster-d
cd redis-cluster-d
vi redis-cluster.tmpl
port ${PORT}
masterauth 123456
requirepass 123456
cluster-enabled yes
cluster-config-file nodes.conf
cluster-node-timeout 5000
cluster-announce-ip 172.17.0.1
cluster-announce-port ${PORT}
cluster-announce-bus-port 1${PORT}
appendonly yes
参数描述
(1)port(端口号)
(2)masterauth(设置集群节点间访问密码，跟下面一致)
(3)requirepass(设置redis访问密码)
(4)cluster-enabled yes(启动集群模式)
(5)cluster-config-file nodes.conf(集群节点信息文件)
(6)cluster-node-timeout 5000(redis节点宕机被发现的时间)
(7)cluster-announce-ip(集群节点的汇报ip，防止nat，预先填写为网关ip后续需要手动修改配置文件)
(8)cluster-announce-port(集群节点的汇报port，防止nat)
(9)cluster-announce-bus-port(集群节点的汇报bus-port，防止nat)
(10) appendonly yes(开启aof)
4、在 redis-cluster下生成conf和data目标，并生成配置信息
执行以下命令，按模板生成文件以及文件夹
for port in `seq 7001 7006`; do
mkdir -p ./${port}/conf
&& PORT=${port} envsubst < ./redis-cluster.tmpl > ./${port}/conf/redis.conf
&& mkdir -p ./${port}/data;
done
5、创建6个redis容器
for port in `seq 7001 7006`; do
docker run -d --net=host -v /root/redis-cluster-d/${port}/conf/redis.conf:/etc/redis/redis.conf -v /root/redis-cluster-d/${port}/data:/data --restart always --name=redis-${port} redis redis-server /etc/redis/redis.conf;
done
6、进入任意一个已运行的redis容器
docker exec -it redis-7001 bash
执行集群指令
redis-cli -a 123456 --cluster create 192.168.52.19:7001 192.168.52.19:7002 192.168.52.19:7003 192.168.52.19:7004 192.168.52.19:7005 192.168.52.19:7006 --cluster-replicas 1
7、检查集群状态
容器内验证:
redis-cli -c -a 123456 -h 192.168.52.19 -p 7001
Centos中验证:
yum install redis -y
redis-cli -c -a 123456 -h 192.168.52.19 -p 7001
redis-cli -a 123456 -h 192.168.52.19 -p 7001 cluster nodes
检查集群健康状态
redis-cli -a 123456 --cluster check 192.168.52.19:7001