How to Install and configure Redis on ElasticBeanstalk

Question

How do I install and configure Redis on AWS ElasticBeanstalk? Does anyone know how to write an .ebextension script to accomplish that?

Answer 1

AWS Elastic Beanstalk does provide resource configuration via the .ebextensions folder. Essentially you need to tell Elastic Beanstalk what you would like provisioned in addition to your application. For provisioning into a default vpc. You need to

create an .ebextensions folder

add an elasticache.config file

and include the following contents.

Resources:
  MyCacheSecurityGroup:
    Type: "AWS::EC2::SecurityGroup"
    Properties:
      GroupDescription: "Lock cache down to webserver access only"
      SecurityGroupIngress :
        - IpProtocol : "tcp"
          FromPort :
            Fn::GetOptionSetting:
              OptionName : "CachePort"
              DefaultValue: "6379"
          ToPort :
            Fn::GetOptionSetting:
              OptionName : "CachePort"
              DefaultValue: "6379"
          SourceSecurityGroupName:
            Ref: "AWSEBSecurityGroup"
  MyElastiCache:
    Type: "AWS::ElastiCache::CacheCluster"
    Properties:
      CacheNodeType:
        Fn::GetOptionSetting:
          OptionName : "CacheNodeType"
          DefaultValue : "cache.t1.micro"
      NumCacheNodes:
        Fn::GetOptionSetting:
          OptionName : "NumCacheNodes"
          DefaultValue : "1"
      Engine:
        Fn::GetOptionSetting:
          OptionName : "Engine"
          DefaultValue : "redis"
      VpcSecurityGroupIds:
        -
          Fn::GetAtt:
            - MyCacheSecurityGroup
            - GroupId

Outputs:
  ElastiCache:
    Description : "ID of ElastiCache Cache Cluster with Redis Engine"
    Value :
      Ref : "MyElastiCache"

Referenced from: "How to add ElasticCache resources to Elastic Beanstalk VPC" http://docs.aws.amazon.com/elasticbeanstalk/latest/dg/customize-environment-resources-elasticache.html