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https://github.com/azavea/terraform-aws-postgresql-rds

A Terraform module to create an Amazon Web Services (AWS) PostgreSQL Relational Database Server (RDS).
https://github.com/azavea/terraform-aws-postgresql-rds

amazon-web-services aws postgresql rds terraform terraform-modules

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A Terraform module to create an Amazon Web Services (AWS) PostgreSQL Relational Database Server (RDS).

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# terraform-aws-postgresql-rds



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A Terraform module to create an Amazon Web Services (AWS) PostgreSQL Relational Database Server (RDS).



## Usage



```hcl

module "postgresql_rds" {

  source = "github.com/azavea/terraform-aws-postgresql-rds"

  vpc_id = "vpc-20f74844"

  allocated_storage = "32"

  engine_version = "9.4.4"

  instance_type = "db.t2.micro"

  storage_type = "gp2"

  database_identifier = "jl23kj32sdf"

  database_name = "hector"

  database_username = "hector"

  database_password = "secret"

  database_port = "5432"

  backup_retention_period = "30"

  backup_window = "04:00-04:30"

  maintenance_window = "sun:04:30-sun:05:30"

  auto_minor_version_upgrade = false

  multi_availability_zone = true

  storage_encrypted = false

  subnet_group = aws_db_subnet_group.default.name

  parameter_group = aws_db_parameter_group.default.name

  monitoring_interval = "60"

  deletion_protection = true

  cloudwatch_logs_exports = ["postgresql"]



  alarm_cpu_threshold = "75"

  alarm_disk_queue_threshold = "10"

  alarm_free_disk_threshold = "5000000000"

  alarm_free_memory_threshold = "128000000"

  alarm_actions = ["arn:aws:sns..."]

  ok_actions = ["arn:aws:sns..."]

  insufficient_data_actions = ["arn:aws:sns..."]



  project = "Something"

  environment = "Staging"

}

```



### Note about Enhanced Monitoring support



If the `monitoring_interval` passed as an input to this module is `0`, an empty `monitoring_role_arn` value will be passed to the `aws_db_instance` resource. 



This is because, if a value for `monitoring_role_arn` is passed to an `aws_db_instance`, along with a `monitoring_interval` of `0`, the following error will occur:



```

InvalidParameterCombination: You must specify a MonitoringInterval value other than 0 when you specify a MonitoringRoleARN value.

```



If you're curious to know more, see the discussion within https://github.com/terraform-providers/terraform-provider-aws/issues/315.



## Variables



- `vpc_id` - ID of VPC meant to house database

- `project` - Name of project this VPC is meant to house (default: `Unknown`)

- `environment` - Name of environment this VPC is targeting (default: `Unknown`)

- `allocated_storage` - Storage allocated to database instance (default: `32`)

- `engine_version` - Database engine version (default: `11.5`)

- `instance_type` - Instance type for database instance (default: `db.t3.micro`)

- `storage_type` - Type of underlying storage for database (default: `gp2`)

- `iops` - The amount of provisioned IOPS. Setting this implies a `storage_type` of `io1` (default: `0`)

- `database_identifier` - Identifier for RDS instance

- `snapshot_identifier` - The name of the snapshot (if any) the database should be created from

- `database_name` - Name of database inside storage engine

- `database_username` - Name of user inside storage engine

- `database_password` - Database password inside storage engine

- `database_port` - Port on which database will accept connections (default `5432`)

- `backup_retention_period` - Number of days to keep database backups (default:

  `30`)

- `backup_window` - 30 minute time window to reserve for backups (default:

  `04:00-04:30`)

- `maintenance_window` - 60 minute time window to reserve for maintenance

  (default: `sun:04:30-sun:05:30`)

- `auto_minor_version_upgrade` - Minor engine upgrades are applied automatically

 to the DB instance during the maintenance window (default: `true`)

- `final_snapshot_identifier` - Identifier for final snapshot if `skip_final_snapshot` is set to `false` (default: `terraform-aws-postgresql-rds-snapshot`)

- `skip_final_snapshot` - Flag to enable or disable a snapshot if the database instance is terminated (default: `true`)

- `copy_tags_to_snapshot` - Flag to enable or disable copying instance tags to the final snapshot (default: `false`)

- `multi_availability_zone` - Flag to enable hot standby in another availability

  zone (default: `false`)

- `storage_encrypted` - Flag to enable storage encryption (default: `false`)

- `monitoring_interval` - The interval, in seconds, between points when Enhanced Monitoring metrics are collected (default: `0`)

- `deletion_protection` - Flag to protect the database instance from deletion (default: `false`)

- `cloudwatch_logs_exports` - List of logs to publish to CloudWatch Logs. See [all](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_LogAccess.Concepts.PostgreSQL.html#USER_LogAccess.PostgreSQL.PublishtoCloudWatchLogs) available options. (default: `["postgresql, "upgrade"]`)

- `subnet_group` - Database subnet group

- `parameter_group` - Database engine parameter group (default:

  `default.postgres11`)

- `alarm_cpu_threshold` - CPU alarm threshold as a percentage (default: `75`)

- `alarm_disk_queue_threshold` - Disk queue alarm threshold (default: `10`)

- `alarm_free_disk_threshold` - Free disk alarm threshold in bytes (default: `5000000000`)

- `alarm_free_memory_threshold` - Free memory alarm threshold in bytes (default: `128000000`)

- `alarm_cpu_credit_balance_threshold` - CPU credit balance threshold (default: `30`). Only used for `db.t*` instance types

- `alarm_actions` - List of ARNs to be notified via CloudWatch when alarm enters ALARM state

- `ok_actions` - List of ARNs to be notified via CloudWatch when alarm enters OK state

- `insufficient_data_actions` - List of ARNs to be notified via CloudWatch when alarm enters INSUFFICIENT_DATA state

- `tags` - Extra tags to attach to the RDS resources (default: `{}`)



## Outputs



- `id` - The database instance ID

- `database_security_group_id` - Security group ID of the database

- `hosted_zone_id` - The zone id for the autogenerated DNS name given in `endpoint`. 

- `hostname` - Public DNS name of database instance

- `port` - Port of database instance

- `endpoint` - Public DNS name and port separated by a colon

   Use this when creating a short-name DNS [alias](https://www.terraform.io/docs/providers/aws/r/route53_record.html#alias-record) for the `endpoint`