Added rds as backing service

aws/backing-services/elasticsearch.tf

@@ -63,7 +63,7 @@ locals {
 }
 
 module "elasticsearch" {
-  source                  = "git::https://github.com/cloudposse/terraform-aws-elasticsearch.git?ref=tags/0.1.2"
+  source                  = "git::https://github.com/cloudposse/terraform-aws-elasticsearch.git?ref=tags/0.1.3"
   namespace               = "${var.namespace}"
   stage                   = "${var.stage}"
   name                    = "${var.ELASTICSEARCH_NAME}"

aws/backing-services/rds.tf

@@ -0,0 +1,217 @@
+variable "RDS_NAME" {
+  type        = "string"
+  default     = "rds"
+  description = "RDS instance name"
+}
+
+variable "RDS_ENABLED" {
+  type        = "string"
+  default     = "false"
+  description = "Set to true to create rds instance"
+}
+
+# Don't use `root`
+# ("MasterUsername root cannot be used as it is a reserved word used by the engine")
+variable "RDS_ADMIN_NAME" {
+  type        = "string"
+  description = "RDS DB admin user name"
+}
+
+# Must be longer than 8 chars
+# ("The parameter MasterUserPassword is not a valid password because it is shorter than 8 characters")
+variable "RDS_ADMIN_PASSWORD" {
+  type        = "string"
+  description = "RDS DB password for the admin user"
+}
+
+# Don't use `default`
+# ("DatabaseName default cannot be used as it is a reserved word used by the engine")
+variable "RDS_DB_NAME" {
+  type        = "string"
+  description = "RDS DB database name"
+}
+
+# db.t2.micro is free tier
+# https://aws.amazon.com/rds/free
+variable "RDS_INSTANCE_TYPE" {
+  type        = "string"
+  default     = "db.t2.micro"
+  description = "EC2 instance type for RDS DB"
+}
+
+variable "RDS_ENGINE" {
+  type        = "string"
+  default     = "mysql"
+  description = "RDS DB engine"
+}
+
+variable "RDS_ENGINE_VERSION" {
+  type        = "string"
+  default     = "5.6"
+  description = "RDS DB engine version"
+}
+
+variable "RDS_PORT" {
+  type        = "string"
+  default     = "3306"
+  description = "RDS DB port"
+}
+
+variable "RDS_DB_PARAMETER_GROUP" {
+  type        = "string"
+  default     = "mysql5.6"
+  description = "RDS DB engine version"
+}
+
+variable "RDS_CLUSTER_ENABLED" {
+  type        = "string"
+  default     = "true"
+  description = "Set to false to prevent the module from creating any resources"
+}
+
+variable "RDS_SNAPSHOT" {
+  type        = "string"
+  default     = ""
+  description = "Set to a snapshot ID to restore from snapshot"
+}
+
+variable "RDS_PARAMETER_GROUP_NAME" {
+  type        = "string"
+  default     = ""
+  description = "Existing parameter group name to use"
+}
+
+variable "RDS_MULTI_AZ" {
+  type        = "string"
+  default     = "false"
+  description = "Run instaces in multiple az"
+}
+
+variable "RDS_STORAGE_TYPE" {
+  type        = "string"
+  default     = "gp2"
+  description = "Storage type"
+}
+
+variable "RDS_STORAGE_SIZE" {
+  type        = "string"
+  default     = "20"
+  description = "Storage size"
+}
+
+variable "RDS_STORAGE_ENCRYPTED" {
+  type        = "string"
+  default     = "false"
+  description = "Set true to encrypt storage"
+}
+
+variable "RDS_AUTO_MINOR_VERSION_UPGRADE" {
+  type        = "string"
+  default     = "false"
+  description = "Allow automated minor version upgrade (e.g. from Postgres 9.5.3 to Postgres 9.5.4)"
+}
+
+variable "RDS_ALLOW_MAJOR_VERSION_UPGRADE" {
+  type        = "string"
+  default     = "false"
+  description = "Allow major version upgrade"
+}
+
+variable "RDS_APPLY_IMMEDIATELY" {
+  type        = "string"
+  default     = "true"
+  description = "Specifies whether any database modifications are applied immediately, or during the next maintenance window"
+}
+
+variable "RDS_SKIP_FINAL_SNAPSHOT" {
+  type        = "string"
+  default     = "false"
+  description = "If true (default), no snapshot will be made before deleting DB"
+}
+
+variable "RDS_BACKUP_RETENTION_PERIOD" {
+  type        = "string"
+  default     = "7"
+  description = "Backup retention period in days. Must be > 0 to enable backups"
+}
+
+variable "RDS_BACKUP_WINDOW" {
+  type        = "string"
+  default     = "22:00-03:00"
+  description = "When AWS can perform DB snapshots, can't overlap with maintenance window"
+}
+
+module "rds" {
+  source                      = "git::https://github.com/cloudposse/terraform-aws-rds.git?ref=tags/0.4.1"
+  enabled                     = "${var.RDS_ENABLED}"
+  namespace                   = "${var.namespace}"
+  stage                       = "${var.stage}"
+  name                        = "${var.RDS_NAME}"
+  dns_zone_id                 = "${var.zone_id}"
+  host_name                   = "${var.RDS_NAME}"
+  security_group_ids          = ["${module.kops_metadata.nodes_security_group_id}"]
+  database_name               = "${var.RDS_DB_NAME}"
+  database_user               = "${var.RDS_ADMIN_NAME}"
+  database_password           = "${var.RDS_ADMIN_PASSWORD}"
+  database_port               = "${var.RDS_PORT}"
+  multi_az                    = "${var.RDS_MULTI_AZ}"
+  storage_type                = "${var.RDS_STORAGE_TYPE}"
+  allocated_storage           = "${var.RDS_STORAGE_SIZE}"
+  storage_encrypted           = "${var.RDS_STORAGE_ENCRYPTED}"
+  engine                      = "${var.RDS_ENGINE}"
+  engine_version              = "${var.RDS_ENGINE_VERSION}"
+  instance_class              = "${var.RDS_INSTANCE_TYPE}"
+  db_parameter_group          = "${var.RDS_DB_PARAMETER_GROUP}"
+  parameter_group_name        = "${var.RDS_PARAMETER_GROUP_NAME}"
+  publicly_accessible         = "false"
+  subnet_ids                  = ["${module.subnets.private_subnet_ids}"]
+  vpc_id                      = "${module.vpc.vpc_id}"
+  snapshot_identifier         = "${var.RDS_SNAPSHOT}"
+  auto_minor_version_upgrade  = "${var.RDS_AUTO_MINOR_VERSION_UPGRADE}"
+  allow_major_version_upgrade = "${var.RDS_ALLOW_MAJOR_VERSION_UPGRADE}"
+  apply_immediately           = "${var.RDS_APPLY_IMMEDIATELY}"
+  skip_final_snapshot         = "${var.RDS_SKIP_FINAL_SNAPSHOT}"
+  copy_tags_to_snapshot       = "true"
+  backup_retention_period     = "${var.RDS_BACKUP_RETENTION_PERIOD}"
+  backup_window               = "${var.RDS_BACKUP_WINDOW}"
+}
+
+output "rds_instance_id" {
+  value       = "${module.rds.instance_id}"
+  description = "RDS ID of the instance"
+}
+
+output "rds_instance_address" {
+  value       = "${module.rds.instance_address}"
+  description = "RDS address of the instance"
+}
+
+output "rds_instance_endpoint" {
+  value       = "${module.rds.instance_endpoint}"
+  description = "RDS DNS Endpoint of the instance"
+}
+
+output "rds_port" {
+  value       = "${var.RDS_PORT}"
+  description = "RDS port"
+}
+
+output "rds_db_name" {
+  value       = "${var.RDS_DB_NAME}"
+  description = "RDS db name"
+}
+
+output "rds_root_user" {
+  value       = "${var.RDS_ADMIN_NAME}"
+  description = "RDS root user name"
+}
+
+output "rds_root_password" {
+  value       = "${var.RDS_ADMIN_PASSWORD}"
+  description = "RDS root password"
+}
+
+output "rds_hostname" {
+  value       = "${module.rds.hostname}"
+  description = "RDS host name of the instance"
+}