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README.yaml
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README.yaml
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name: terraform-aws-rds-cluster
tags:
- aws
- terraform
- terraform-modules
- databases
- rds
- rds-database
- aurora
- mysql
- cluster
categories:
- terraform-modules/databases
license: APACHE2
github_repo: cloudposse/terraform-aws-rds-cluster
badges:
- name: Latest Release
image: https://img.shields.io/github/release/cloudposse/terraform-aws-rds-cluster.svg?style=for-the-badge
url: https://github.com/cloudposse/terraform-aws-rds-cluster/releases/latest
- name: Last Updated
image: https://img.shields.io/github/last-commit/cloudposse/terraform-aws-rds-cluster.svg?style=for-the-badge
url: https://github.com/cloudposse/terraform-aws-rds-cluster/commits
- name: Slack Community
image: https://slack.cloudposse.com/for-the-badge.svg
url: https://slack.cloudposse.com
# List any related terraform modules that this module may be used with or that this module depends on.
related:
- name: terraform-aws-rds
description: Terraform module to provision AWS RDS instances
url: https://github.com/cloudposse/terraform-aws-rds
- name: terraform-aws-rds-cloudwatch-sns-alarms
description: Terraform module that configures important RDS alerts using CloudWatch and sends them to an SNS topic
url: https://github.com/cloudposse/terraform-aws-rds-cloudwatch-sns-alarms
description: |-
Terraform module to provision an [`RDS Aurora`](https://aws.amazon.com/rds/aurora) cluster for MySQL or Postgres.
Supports [Amazon Aurora Serverless](https://aws.amazon.com/rds/aurora/serverless/).
usage: |2-
For a complete example, see [examples/complete](examples/complete).
For automated tests of the complete example using [bats](https://github.com/bats-core/bats-core) and [Terratest](https://github.com/gruntwork-io/terratest) (which tests and deploys the example on AWS), see [test](test).
[Basic example](examples/basic)
```hcl
module "rds_cluster_aurora_postgres" {
source = "cloudposse/rds-cluster/aws"
# Cloud Posse recommends pinning every module to a specific version
# version = "x.x.x"
name = "postgres"
engine = "aurora-postgresql"
cluster_family = "aurora-postgresql9.6"
# 1 writer, 1 reader
cluster_size = 2
# 1 writer, 3 reader
# cluster_size = 4
# 1 writer, 5 reader
# cluster_size = 6
namespace = "eg"
stage = "dev"
admin_user = "admin1"
admin_password = "Test123456789"
db_name = "dbname"
db_port = 5432
instance_type = "db.r4.large"
vpc_id = "vpc-xxxxxxxx"
security_groups = ["sg-xxxxxxxx"]
subnets = ["subnet-xxxxxxxx", "subnet-xxxxxxxx"]
zone_id = "Zxxxxxxxx"
}
```
[Serverless Aurora MySQL 5.6](examples/serverless_mysql)
```hcl
module "rds_cluster_aurora_mysql_serverless" {
source = "cloudposse/rds-cluster/aws"
# Cloud Posse recommends pinning every module to a specific version
# version = "x.x.x"
namespace = "eg"
stage = "dev"
name = "db"
engine = "aurora"
engine_mode = "serverless"
cluster_family = "aurora5.6"
cluster_size = 0
admin_user = "admin1"
admin_password = "Test123456789"
db_name = "dbname"
db_port = 3306
instance_type = "db.t2.small"
vpc_id = "vpc-xxxxxxxx"
security_groups = ["sg-xxxxxxxx"]
subnets = ["subnet-xxxxxxxx", "subnet-xxxxxxxx"]
zone_id = "Zxxxxxxxx"
enable_http_endpoint = true
scaling_configuration = [
{
auto_pause = true
max_capacity = 256
min_capacity = 2
seconds_until_auto_pause = 300
}
]
}
```
[Serverless Aurora 2.07.1 MySQL 5.7](examples/serverless_mysql57)
```hcl
module "rds_cluster_aurora_mysql_serverless" {
source = "cloudposse/rds-cluster/aws"
# Cloud Posse recommends pinning every module to a specific version
# version = "x.x.x"
namespace = "eg"
stage = "dev"
name = "db"
engine = "aurora-mysql"
engine_mode = "serverless"
engine_version = "5.7.mysql_aurora.2.07.1"
cluster_family = "aurora-mysql5.7"
cluster_size = 0
admin_user = "admin1"
admin_password = "Test123456789"
db_name = "dbname"
db_port = 3306
vpc_id = "vpc-xxxxxxxx"
security_groups = ["sg-xxxxxxxx"]
subnets = ["subnet-xxxxxxxx", "subnet-xxxxxxxx"]
zone_id = "Zxxxxxxxx"
enable_http_endpoint = true
scaling_configuration = [
{
auto_pause = true
max_capacity = 16
min_capacity = 1
seconds_until_auto_pause = 300
timeout_action = "ForceApplyCapacityChange"
}
]
}
```
[With cluster parameters](examples/with_cluster_parameters)
```hcl
module "rds_cluster_aurora_mysql" {
source = "cloudposse/rds-cluster/aws"
# Cloud Posse recommends pinning every module to a specific version
# version = "x.x.x"
engine = "aurora"
cluster_family = "aurora-mysql5.7"
cluster_size = 2
namespace = "eg"
stage = "dev"
name = "db"
admin_user = "admin1"
admin_password = "Test123456789"
db_name = "dbname"
instance_type = "db.t2.small"
vpc_id = "vpc-xxxxxxx"
security_groups = ["sg-xxxxxxxx"]
subnets = ["subnet-xxxxxxxx", "subnet-xxxxxxxx"]
zone_id = "Zxxxxxxxx"
cluster_parameters = [
{
name = "character_set_client"
value = "utf8"
},
{
name = "character_set_connection"
value = "utf8"
},
{
name = "character_set_database"
value = "utf8"
},
{
name = "character_set_results"
value = "utf8"
},
{
name = "character_set_server"
value = "utf8"
},
{
name = "collation_connection"
value = "utf8_bin"
},
{
name = "collation_server"
value = "utf8_bin"
},
{
name = "lower_case_table_names"
value = "1"
apply_method = "pending-reboot"
},
{
name = "skip-character-set-client-handshake"
value = "1"
apply_method = "pending-reboot"
}
]
}
```
[With enhanced monitoring](examples/enhanced_monitoring)
```hcl
# create IAM role for monitoring
resource "aws_iam_role" "enhanced_monitoring" {
name = "rds-cluster-example-1"
assume_role_policy = data.aws_iam_policy_document.enhanced_monitoring.json
}
# Attach Amazon's managed policy for RDS enhanced monitoring
resource "aws_iam_role_policy_attachment" "enhanced_monitoring" {
role = aws_iam_role.enhanced_monitoring.name
policy_arn = "arn:aws:iam::aws:policy/service-role/AmazonRDSEnhancedMonitoringRole"
}
# allow rds to assume this role
data "aws_iam_policy_document" "enhanced_monitoring" {
statement {
actions = [
"sts:AssumeRole",
]
effect = "Allow"
principals {
type = "Service"
identifiers = ["monitoring.rds.amazonaws.com"]
}
}
}
module "rds_cluster_aurora_postgres" {
source = "cloudposse/rds-cluster/aws"
# Cloud Posse recommends pinning every module to a specific version
# version = "x.x.x"
engine = "aurora-postgresql"
cluster_family = "aurora-postgresql9.6"
cluster_size = 2
namespace = "eg"
stage = "dev"
name = "db"
admin_user = "admin1"
admin_password = "Test123456789"
db_name = "dbname"
db_port = 5432
instance_type = "db.r4.large"
vpc_id = "vpc-xxxxxxx"
security_groups = ["sg-xxxxxxxx"]
subnets = ["subnet-xxxxxxxx", "subnet-xxxxxxxx"]
zone_id = "Zxxxxxxxx"
# enable monitoring every 30 seconds
rds_monitoring_interval = 30
# reference iam role created above
rds_monitoring_role_arn = aws_iam_role.enhanced_monitoring.arn
}
```
examples: |-
Review the [complete example](examples/complete) to see how to use this module.
include:
- docs/targets.md
- docs/terraform.md
contributors: []