According to hashicorp/terraform-provider-google#6317, this is ForceNew.

nat-henderson · May 9, 2020 · 6c23281 · 6c23281
1 parent 4bd2a6f
commit 6c23281
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/third_party/terraform/resources/resource_compute_instance_template.go b/third_party/terraform/resources/resource_compute_instance_template.go
@@ -294,6 +294,7 @@ func resourceComputeInstanceTemplate() *schema.Resource {
 										Type:         schema.TypeString,
 										Optional:     true,
 										Computed:     true,
+										ForceNew:     true,
 										ValidateFunc: validation.StringInSlice([]string{"PREMIUM", "STANDARD"}, false),
 									},
 									// Possibly configurable- this was added so we don't break if it's inadvertently set