redis-cluster's Introduction

How to set up Redis Cluster

Pull Redis Image

$docker pull redis

Create redis configuration file

port 6379
cluster-enabled yes
cluster-config-file nodes.conf
cluster-node-timeout 5000
appendonly yes

Create network

$docker create network java_backend

Create Redis Instances

$ docker run -d --net java_backend -v /home/ubuntu/redis/redis.conf:/usr/local/etc/redis/redis.conf --name redis-1 redis redis-server /usr/local/etc/redis/redis.conf
$ docker run -d --net java_backend -v /home/ubuntu/redis/redis.conf:/usr/local/etc/redis/redis.conf --name redis-2 redis redis-server /usr/local/etc/redis/redis.conf
$ docker run -d --net java_backend -v /home/ubuntu/redis/redis.conf:/usr/local/etc/redis/redis.conf --name redis-3 redis redis-server /usr/local/etc/redis/redis.conf
$ docker run -d --net java_backend -v /home/ubuntu/redis/redis.conf:/usr/local/etc/redis/redis.conf --name redis-4 redis redis-server /usr/local/etc/redis/redis.conf
$ docker run -d --net java_backend -v /home/ubuntu/redis/redis.conf:/usr/local/etc/redis/redis.conf --name redis-5 redis redis-server /usr/local/etc/redis/redis.conf
$ docker run -d --net java_backend -v /home/ubuntu/redis/redis.conf:/usr/local/etc/redis/redis.conf --name redis-6 redis redis-server /usr/local/etc/redis/redis.conf

Executing these command will create 6 Redis instances, for demo purpose i am create container in one machine, on production environment we should container in different instances.

Create Cluster

$ docker exec redis-1 redis-cli --cluster create 172.29.0.2:6379 172.29.0.3:6379 172.29.0.4:6379 172.29.0.5:6379 172.29.0.6:6379 172.29.0.7:6379 --cluster-replicas 1

This command will create cluster with 3 master node and 3 slaves