Code Quality

Terraform AWS MemoryDB Cluster

Terraform module which creates a MemoryDB Cluster. The focus on this module lies within it's simplicity by providing default values that should make sense for most use cases.

Inputs

Name	Description	Type	Default	Required
auto_minor_version_upgrade	When set to true, the cluster will automatically receive minor engine version upgrades after launch.	bool	true	no
description	Description for the cluster.	string	n/a	yes
engine_version	Version number of the Redis engine to be used for the cluster.	string	n/a	yes
maintenance_window	Specifies the weekly time range during which maintenance on the cluster is performed.	string	"sun:23:00-mon:01:30"	no
name	Name of the cluster.	string	n/a	yes
node_type	The compute and memory capacity of the nodes in the cluster.	string	n/a	yes
num_replicas_per_shard	The number of replicas to apply to each shard.	number	n/a	yes
num_shards	The number of shards in the cluster.	number	n/a	yes
parameters	A list of parameters to apply to the cluster.	list(object({ name = string value = string }))	[ { "name": "activedefrag", "value": "yes" } ]	no
port	The port number on which each of the nodes accepts connections.	number	6379	no
recipients	List of email addresses to notify when the cluster is in an unhealthy state.	list(string)	[]	no
security_group_ids	Set of VPC Security Group ID-s to associate with this cluster.	list(string)	n/a	yes
snapshot_retention_limit	The number of days for which MemoryDB retains automatic snapshots before deleting them.	number	0	no
snapshot_window	The daily time range (in UTC) during which MemoryDB begins taking a daily snapshot of your shard.	string	"05:00-09:00"	no
subnet_ids	List of VPC subnet ID-s to associate with this cluster.	list(string)	n/a	yes
tags	Tags to add to the AWS Customer Managed Key.	map(any)	{}	no
tls_enabled	A flag to enable in-transit encryption on the cluster.	bool	true	no
users	A map of users to create in the cluster.	map( object( { access_string = string, tags = map(string) } ) )	{ "admin": { "access_string": "on ~* &* +@all", "tags": { "user": "admin" } }, "readonly": { "access_string": "on ~* &* -@all +@read", "tags": { "user": "readonly" } } }	no

Outputs

Name	Description
arn	The ARN of the cluster.
cluster_endpoint_address	DNS hostname of the cluster configuration endpoint.
cluster_endpoint_port	Port number that the cluster configuration endpoint is listening on.
name	The name of the Memory DB Cluster.

Providers

Name	Version
aws	>= 4.36

Resources

• resource.aws_memorydb_cluster.main (main.tf#7)

Examples

Full

module "basic-example" {
  source = "../../"

  description            = "PHP Sessions"
  engine_version         = "6.2"
  name                   = "session"
  node_type              = "db.t4g.small"
  num_replicas_per_shard = 0
  num_shards             = 1
  security_group_ids     = ["sg-123456789"]
  subnet_ids             = ["subnet-123456789", "subnet-987654321"]
}