cloud-platform-terraform-elasticache-cluster

This Terraform module will create an ElastiCache Redis Cluster Replication Group in AWS. The module is built for the Redis engine. This module does not support Memcached.

Usage

module "example_team_ec_cluster" {
  source = "github.com/ministryofjustice/cloud-platform-terraform-elasticache-cluster"

  // The first two inputs are provided by the pipeline for cloud-platform. See the example for more detail.

  cluster_name                  = "cloud-platform-live-0"
  cluster_state_bucket          = "live-0-state-bucket"
  team_name                     = "example-repo"
  engine_version                = "4.0.10"
  parameter_group_name          = "default.redis4.0"
  node_type                     = "cache.m3.medium"
  number_cache_clusters         = "3"
  replication_group_description = "example description"
  business-unit                 = "example-bu"
  application                   = "exampleapp"
  is-production                 = "false"
  environment-name              = "development"
  infrastructure-support        = "example-team@digtal.justice.gov.uk"
}

Inputs

Name	Description	Type	Default	Required
engine_version	Redis ElastiCache engine version	string	`4.0.10`	no
parameter_group_name	ElastiCache engine parameter group name	string	`default.redis4.0`	no
node_type	The instance type of the EC cluster	string	`cache.m3.medium`	no
cluster_name	The name of the cluster (eg.: cloud-platform-live-0)	string	-	yes
cluster_state_bucket	The name of the S3 bucket holding the terraform state for the cluster	string	-	yes

Tags

Some of the inputs are tags. All infrastructure resources need to be tagged according to the MOJ techincal guidence. The tags are stored as variables that you will need to fill out as part of your module.

Name	Description	Type	Default	Required
application		string	-	yes
business-unit	Area of the MOJ responsible for the service	string	`mojdigital`	yes
environment-name		string	-	yes
infrastructure-support	The team responsible for managing the infrastructure. Should be of the form team-email	string	-	yes
is-production		string	`false`	yes
team_name		string	-	yes

Outputs

Name	Description
primary_endpoint_address	The address of the endpoint for the primary node in the replication group, if the cluster mode is disabled.
member_clusters	The identifiers of all the nodes that are part of this replication group.
auth_token	The password used to access the Redis protected server.

Reading Material