ronaldour / redis-cluster-opsworks

Redis Cluster using AWS OpsWorks

This repository contains all the code required to deploy all the infrastructure for a Redis cluster in AWS using Opsworks and CloudFormation

Prerequisites

• AWS CLI already configured
• An S3 Bucket created for storing the Cloud Formation templates

Deployment

Deploy the stack using the scripts on the commands folder or use aws cli commands

1. Sync the cloud formation templates to the S3 bucket

$ ./commands/sync.sh

2. Create the stack

$ ../commands/create.sh

Parameters of the master Cloud Formation template

• TemplatesBucketName: The S3 bucket name for the CF templates

OpsWorks configuration

The OpsWorks layers pull the chef recipes from https://github.com/ronaldour/redis-cluster-chef.git

Test

Replication

• Connect your Redis client to the master and store a value

$ redis-cli -h <MASTER_IP>
  6379> Set key value

• Connect your Redis client to any slave and check the value

$ redis-cli -h <SLAVE_IP>
  6379> Get key
  6379> value

Failover

• Connect your Redis client to any Slave and check the master ip address

$ redis-cli -h <SLAVE_IP>
  6379> info Replication

• Disconnect the master node

$ redis-cli -h <MASTER_IP>
  6379> DEBUG sleep 90

• Check the master ip on any slave again, it should have been changed