Add resource manager tags to GKE autopilot

.changelog/10123.txt

@@ -0,0 +1,3 @@
+```release-note:enhancement
+container: added `node_pool_auto_config.resource_manager_tags` field to `google_container_cluster` resource
+```

google-beta/services/container/node_config.go

@@ -1222,7 +1222,6 @@ func flattenResourceManagerTags(c *container.ResourceManagerTags) map[string]int
 		for k, v := range c.Tags {
 			rmt[k] = v
 		}
-
 	}
 
 	return rmt

google-beta/services/container/resource_container_cluster.go

@@ -1423,6 +1423,11 @@ func ResourceContainerCluster() *schema.Resource {
 								},
 							},
 						},
+						"resource_manager_tags": {
+							Type:        schema.TypeMap,
+							Optional:    true,
+							Description: `A map of resource manager tags. Resource manager tag keys and values have the same definition as resource manager tags. Keys must be in the format tagKeys/{tag_key_id}, and values are in the format tagValues/456. The field is ignored (both PUT & PATCH) when empty.`,
+						},
 					},
 				},
 			},
@@ -4103,6 +4108,24 @@ func resourceContainerClusterUpdate(d *schema.ResourceData, meta interface{}) er
 		log.Printf("[INFO] GKE cluster %s node pool auto config network tags have been updated", d.Id())
 	}
 
+	if d.HasChange("node_pool_auto_config.0.resource_manager_tags") {
+		rmtags := d.Get("node_pool_auto_config.0.resource_manager_tags")
+
+		req := &container.UpdateClusterRequest{
+			Update: &container.ClusterUpdate{
+				DesiredNodePoolAutoConfigResourceManagerTags: expandResourceManagerTags(rmtags),
+			},
+		}
+
+		updateF := updateFunc(req, "updating GKE cluster node pool auto config resource manager tags")
+		// Call update serially.
+		if err := transport_tpg.LockedCall(lockKey, updateF); err != nil {
+			return err
+		}
+
+		log.Printf("[INFO] GKE cluster %s node pool auto config resource manager tags have been updated", d.Id())
+	}
+
 	d.Partial(false)
 
 	if d.HasChange("cluster_telemetry") {
@@ -5351,6 +5374,10 @@ func expandNodePoolAutoConfig(configured interface{}) *container.NodePoolAutoCon
 		npac.NetworkTags = expandNodePoolAutoConfigNetworkTags(v)
 	}
 
+	if v, ok := config["resource_manager_tags"]; ok && len(v.(map[string]interface{})) > 0 {
+		npac.ResourceManagerTags = expandResourceManagerTags(v)
+	}
+
 	return npac
 }
 
@@ -6148,6 +6175,9 @@ func flattenNodePoolAutoConfig(c *container.NodePoolAutoConfig) []map[string]int
 	if c.NetworkTags != nil {
 		result["network_tags"] = flattenNodePoolAutoConfigNetworkTags(c.NetworkTags)
 	}
+	if c.ResourceManagerTags != nil {
+		result["resource_manager_tags"] = flattenResourceManagerTags(c.ResourceManagerTags)
+	}
 
 	return []map[string]interface{}{result}
 }