feat: support TPG v6.11 and control_plane_endpoints_config

Author: apeabody

examples/safer_cluster_iap_bastion/README.md

@@ -60,6 +60,7 @@ To deploy this example:
 | ca\_certificate | Cluster ca certificate (base64 encoded) |
 | cluster\_name | Cluster name |
 | endpoint | Cluster endpoint |
+| endpoint\_dns | Cluster endpoint dnd |
 | get\_credentials\_command | gcloud get-credentials command to generate kubeconfig for the private cluster |
 | keyring | The name of the keyring. |
 | keyring\_resource | The location of the keyring. |

examples/safer_cluster_iap_bastion/outputs.tf

@@ -35,6 +35,12 @@ output "endpoint" {
   value       = module.gke.endpoint
 }
 
+output "endpoint_dns" {
+  sensitive   = true
+  description = "Cluster endpoint dnd"
+  value       = module.gke.endpoint_dns
+}
+
 output "master_authorized_networks_config" {
   description = "Networks from which access to master is permitted"
   value       = module.gke.master_authorized_networks_config