Terraform module to provision an ElastiCache Memcached Cluster
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IMPORTANT: The master branch is used in source just as an example. In your code, do not pin to master because there may be breaking changes between releases.
Instead pin to the release tag (e.g. ?ref=tags/x.y.z) of one of our latest releases.
For a complete example, see examples/complete.
For automated tests of the complete example using bats and Terratest (which tests and deploys the example on AWS), see test.
provider "aws" {
region = var.region
}
module "vpc" {
source = "git::https://github.com/cloudposse/terraform-aws-vpc.git?ref=tags/0.8.1"
namespace = var.namespace
stage = var.stage
name = var.name
cidr_block = "172.16.0.0/16"
}
module "subnets" {
source = "git::https://github.com/cloudposse/terraform-aws-dynamic-subnets.git?ref=tags/0.18.1"
availability_zones = var.availability_zones
namespace = var.namespace
stage = var.stage
name = var.name
vpc_id = module.vpc.vpc_id
igw_id = module.vpc.igw_id
cidr_block = module.vpc.vpc_cidr_block
nat_gateway_enabled = false
nat_instance_enabled = false
}
module "memcached" {
source = "git::https://github.com/cloudposse/terraform-aws-elasticache-memcached.git?ref=master"
namespace = var.namespace
stage = var.stage
name = var.name
availability_zones = var.availability_zones
vpc_id = module.vpc.vpc_id
allowed_security_groups = [module.vpc.vpc_default_security_group_id]
subnets = module.subnets.private_subnet_ids
cluster_size = var.cluster_size
instance_type = var.instance_type
engine_version = var.engine_version
apply_immediately = true
zone_id = var.zone_id
}Review the complete example to see how to use this module.
Available targets:
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lint Lint terraform code
| Name | Version |
|---|---|
| terraform | ~> 0.12.0 |
| aws | ~> 2.0 |
| null | ~> 2.0 |
| Name | Version |
|---|---|
| aws | ~> 2.0 |
| null | ~> 2.0 |
| Name | Description | Type | Default | Required |
|---|---|---|---|---|
| alarm_actions | Alarm actions | list(string) |
[] |
no |
| alarm_cpu_threshold_percent | CPU threshold alarm level | number |
75 |
no |
| alarm_memory_threshold_bytes | Alarm memory threshold bytes | number |
10000000 |
no |
| allowed_cidr_blocks | List of CIDR blocks that are allowed ingress to the cluster's Security Group created in the module | list(string) |
[] |
no |
| allowed_security_groups | List of Security Group IDs that are allowed ingress to the cluster's Security Group created in the module | list(string) |
[] |
no |
| apply_immediately | Specifies whether any database modifications are applied immediately, or during the next maintenance window | bool |
true |
no |
| attributes | Additional attributes (_e.g._ "1") | list(string) |
[] |
no |
| availability_zones | List of Availability Zones for the cluster | list(string) |
n/a | yes |
| cluster_size | Cluster size | number |
1 |
no |
| delimiter | Delimiter between name, namespace, stage and attributes |
string |
"-" |
no |
| elasticache_parameter_group_family | ElastiCache parameter group family | string |
"memcached1.5" |
no |
| elasticache_subnet_group_name | Subnet group name for the ElastiCache instance | string |
"" |
no |
| enabled | Set to false to prevent the module from creating any resources | bool |
true |
no |
| engine_version | Memcached engine version. For more info, see https://docs.aws.amazon.com/AmazonElastiCache/latest/mem-ug/supported-engine-versions.html | string |
"1.5.16" |
no |
| existing_security_groups | List of existing Security Group IDs to place the cluster into. Set use_existing_security_groups to true to enable using existing_security_groups as Security Groups for the cluster |
list(string) |
[] |
no |
| instance_type | Elastic cache instance type | string |
"cache.t2.micro" |
no |
| maintenance_window | Maintenance window | string |
"wed:03:00-wed:04:00" |
no |
| max_item_size | Max item size | number |
10485760 |
no |
| name | Name of the application | string |
n/a | yes |
| namespace | Namespace (e.g. eg or cp) |
string |
"" |
no |
| notification_topic_arn | Notification topic arn | string |
"" |
no |
| port | Memcached port | number |
11211 |
no |
| stage | Stage (e.g. prod, dev, staging) |
string |
"" |
no |
| subnets | AWS subnet ids | list(string) |
[] |
no |
| tags | Additional tags (_e.g._ map("BusinessUnit","ABC") | map(string) |
{} |
no |
| use_existing_security_groups | Flag to enable/disable creation of Security Group in the module. Set to true to disable Security Group creation and provide a list of existing security Group IDs in existing_security_groups to place the cluster into |
bool |
false |
no |
| vpc_id | VPC ID | string |
"" |
no |
| zone_id | Route53 DNS Zone ID | string |
"" |
no |
| Name | Description |
|---|---|
| cluster_address | Cluster address |
| cluster_configuration_endpoint | Cluster configuration endpoint |
| cluster_id | Cluster ID |
| cluster_urls | Cluster URLs |
| hostname | Cluster hostname |
| security_group_id | Security Group ID |
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Check out these related projects.
- terraform-aws-elasticache-redis - Terraform module to provision an ElastiCache Redis Cluster
- terraform-aws-elasticache-cloudwatch-sns-alarms - Terraform module that configures CloudWatch SNS alerts for ElastiCache
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