gkebackup backupplan: Add State and StateReason fields

.changelog/8227.txt

@@ -0,0 +1,3 @@
+```release-note:enhancement
+gkebackup: added `state` and `state_reason` output-only fields to `google_gkebackup_backupplan` resource
+```

google/services/gkebackup/resource_gke_backup_backup_plan.go

@@ -265,6 +265,16 @@ backupPlans.delete to ensure that their change will be applied to the same versi
 				Computed:    true,
 				Description: `The number of Kubernetes Pods backed up in the last successful Backup created via this BackupPlan.`,
 			},
+			"state": {
+				Type:        schema.TypeString,
+				Computed:    true,
+				Description: `The State of the BackupPlan.`,
+			},
+			"state_reason": {
+				Type:        schema.TypeString,
+				Computed:    true,
+				Description: `Detailed description of why BackupPlan is in its current state.`,
+			},
 			"uid": {
 				Type:        schema.TypeString,
 				Computed:    true,
@@ -479,6 +489,12 @@ func resourceGKEBackupBackupPlanRead(d *schema.ResourceData, meta interface{}) e
 	if err := d.Set("protected_pod_count", flattenGKEBackupBackupPlanProtectedPodCount(res["protectedPodCount"], d, config)); err != nil {
 		return fmt.Errorf("Error reading BackupPlan: %s", err)
 	}
+	if err := d.Set("state", flattenGKEBackupBackupPlanState(res["state"], d, config)); err != nil {
+		return fmt.Errorf("Error reading BackupPlan: %s", err)
+	}
+	if err := d.Set("state_reason", flattenGKEBackupBackupPlanStateReason(res["stateReason"], d, config)); err != nil {
+		return fmt.Errorf("Error reading BackupPlan: %s", err)
+	}
 
 	return nil
 }
@@ -914,6 +930,14 @@ func flattenGKEBackupBackupPlanProtectedPodCount(v interface{}, d *schema.Resour
 	return v // let terraform core handle it otherwise
 }
 
+func flattenGKEBackupBackupPlanState(v interface{}, d *schema.ResourceData, config *transport_tpg.Config) interface{} {
+	return v
+}
+
+func flattenGKEBackupBackupPlanStateReason(v interface{}, d *schema.ResourceData, config *transport_tpg.Config) interface{} {
+	return v
+}
+
 func expandGKEBackupBackupPlanName(v interface{}, d tpgresource.TerraformResourceData, config *transport_tpg.Config) (interface{}, error) {
 	return tpgresource.ReplaceVars(d, config, "projects/{{project}}/locations/{{location}}/backupPlans/{{name}}")
 }

website/docs/r/gke_backup_backup_plan.html.markdown

@@ -365,6 +365,12 @@ In addition to the arguments listed above, the following computed attributes are
 * `protected_pod_count` -
   The number of Kubernetes Pods backed up in the last successful Backup created via this BackupPlan.
 
+* `state` -
+  The State of the BackupPlan.
+
+* `state_reason` -
+  Detailed description of why BackupPlan is in its current state.
+
 
 ## Timeouts