feat: Support to create v2 private service connection (#50)

Co-authored-by: Bharath KKB <[email protected]>

Author: lokeshyadavv

modules/create_environment_v2/README.md

@@ -17,6 +17,7 @@ module "composer" {
 | Name | Description | Type | Default | Required |
 |------|-------------|------|---------|:--------:|
 | airflow\_config\_overrides | Airflow configuration properties to override. Property keys contain the section and property names, separated by a hyphen, for example "core-dags\_are\_paused\_at\_creation". | `map(string)` | `{}` | no |
+| cloud\_composer\_connection\_subnetwork | When specified, the environment will use Private Service Connect instead of VPC peerings to connect to Cloud SQL in the Tenant Project | `string` | `null` | no |
 | cloud\_composer\_network\_ipv4\_cidr\_block | The CIDR block from which IP range in tenant project will be reserved. | `string` | `null` | no |
 | cloud\_sql\_ipv4\_cidr | The CIDR block from which IP range in tenant project will be reserved for Cloud SQL. | `string` | `null` | no |
 | composer\_env\_name | Name of Cloud Composer Environment | `string` | n/a | yes |

modules/create_environment_v2/main.tf

@@ -74,12 +74,14 @@ resource "google_composer_environment" "composer_env" {
           master_ipv4_cidr_block                 = var.master_ipv4_cidr
           cloud_sql_ipv4_cidr_block              = var.cloud_sql_ipv4_cidr
           cloud_composer_network_ipv4_cidr_block = var.cloud_composer_network_ipv4_cidr_block
+          cloud_composer_connection_subnetwork   = var.cloud_composer_connection_subnetwork
       }] : []
       content {
         enable_private_endpoint                = private_environment_config.value["enable_private_endpoint"]
         master_ipv4_cidr_block                 = private_environment_config.value["master_ipv4_cidr_block"]
         cloud_sql_ipv4_cidr_block              = private_environment_config.value["cloud_sql_ipv4_cidr_block"]
         cloud_composer_network_ipv4_cidr_block = private_environment_config.value["cloud_composer_network_ipv4_cidr_block"]
+        cloud_composer_connection_subnetwork   = private_environment_config.value["cloud_composer_connection_subnetwork"]
       }
     }
 

modules/create_environment_v2/variables.tf

@@ -112,6 +112,12 @@ variable "use_private_environment" {
   default     = false
 }
 
+variable "cloud_composer_connection_subnetwork" {
+  description = "When specified, the environment will use Private Service Connect instead of VPC peerings to connect to Cloud SQL in the Tenant Project"
+  type        = string
+  default     = null
+}
+
 variable "cloud_sql_ipv4_cidr" {
   description = "The CIDR block from which IP range in tenant project will be reserved for Cloud SQL."
   type        = string