feat: add var and output for ACM version (#1322)

Author: apeabody

modules/acm/README.md

@@ -66,6 +66,7 @@ data "google_client_config" "default" {}
 |------|-------------|------|---------|:--------:|
 | cluster\_membership\_id | The cluster membership ID. If unset, one will be autogenerated. | `string` | `""` | no |
 | cluster\_name | GCP cluster Name used to reach cluster and which becomes the cluster name in the Config Sync kubernetes custom resource. | `string` | n/a | yes |
+| configmanagement\_version | Version of ACM. | `string` | `""` | no |
 | create\_ssh\_key | Controls whether a key will be generated for Git authentication | `bool` | `true` | no |
 | enable\_fleet\_feature | Whether to enable the ACM feature on the fleet. | `bool` | `true` | no |
 | enable\_fleet\_registration | Whether to create a new membership. | `bool` | `true` | no |
@@ -87,6 +88,7 @@ data "google_client_config" "default" {}
 
 | Name | Description |
 |------|-------------|
+| configmanagement\_version | Version of ACM installed. |
 | git\_creds\_public | Public key of SSH keypair to allow the Anthos Config Management Operator to authenticate to your Git repository. |
 | wait | An output to use when you want to depend on cmd finishing |
 

modules/acm/feature.tf

@@ -36,7 +36,7 @@ resource "google_gke_hub_feature_membership" "main" {
   project    = var.project_id
 
   configmanagement {
-    version = "1.11.0"
+    version = var.configmanagement_version
 
     config_sync {
       source_format = var.source_format != "" ? var.source_format : null

modules/acm/outputs.tf

@@ -19,6 +19,11 @@ output "git_creds_public" {
   value       = var.create_ssh_key ? coalesce(tls_private_key.k8sop_creds.*.public_key_openssh...) : null
 }
 
+output "configmanagement_version" {
+  description = "Version of ACM installed."
+  value       = google_gke_hub_feature_membership.main.configmanagement[0].version
+}
+
 output "wait" {
   description = "An output to use when you want to depend on cmd finishing"
   value       = google_gke_hub_feature_membership.main.membership

modules/acm/variables.tf

@@ -47,6 +47,12 @@ variable "cluster_membership_id" {
   default     = ""
 }
 
+variable "configmanagement_version" {
+  description = "Version of ACM."
+  type        = string
+  default     = ""
+}
+
 # Config Sync variables
 variable "sync_repo" {
   description = "ACM Git repo address"