Allow recurring_schedule.time_of_day to be set to 00:00

.changelog/5822.txt

@@ -0,0 +1,3 @@
+```release-note:bug
+osconfig: fixed a bug where `recurring_schedule.time_of_day` can not be set to 12am exact time in `google_os_config_patch_deployment` resource
+```

google/resource_os_config_patch_deployment.go

@@ -1800,9 +1800,6 @@ func flattenOSConfigPatchDeploymentRecurringScheduleTimeOfDay(v interface{}, d *
 		return nil
 	}
 	original := v.(map[string]interface{})
-	if len(original) == 0 {
-		return nil
-	}
 	transformed := make(map[string]interface{})
 	transformed["hours"] =
 		flattenOSConfigPatchDeploymentRecurringScheduleTimeOfDayHours(original["hours"], d, config)
@@ -1814,6 +1811,7 @@ func flattenOSConfigPatchDeploymentRecurringScheduleTimeOfDay(v interface{}, d *
 		flattenOSConfigPatchDeploymentRecurringScheduleTimeOfDayNanos(original["nanos"], d, config)
 	return []interface{}{transformed}
 }
+
 func flattenOSConfigPatchDeploymentRecurringScheduleTimeOfDayHours(v interface{}, d *schema.ResourceData, config *Config) interface{} {
 	// Handles the string fixed64 format
 	if strVal, ok := v.(string); ok {
@@ -2962,7 +2960,7 @@ func expandOSConfigPatchDeploymentRecurringSchedule(v interface{}, d TerraformRe
 	transformedTimeOfDay, err := expandOSConfigPatchDeploymentRecurringScheduleTimeOfDay(original["time_of_day"], d, config)
 	if err != nil {
 		return nil, err
-	} else if val := reflect.ValueOf(transformedTimeOfDay); val.IsValid() && !isEmptyValue(val) {
+	} else {
 		transformed["timeOfDay"] = transformedTimeOfDay
 	}
 

google/resource_os_config_patch_deployment_generated_test.go

@@ -114,6 +114,56 @@ resource "google_os_config_patch_deployment" "patch" {
 `, context)
 }
 
+func TestAccOSConfigPatchDeployment_osConfigPatchDeploymentDailyMidnightExample(t *testing.T) {
+	t.Parallel()
+
+	context := map[string]interface{}{
+		"random_suffix": randString(t, 10),
+	}
+
+	vcrTest(t, resource.TestCase{
+		PreCheck:     func() { testAccPreCheck(t) },
+		Providers:    testAccProviders,
+		CheckDestroy: testAccCheckOSConfigPatchDeploymentDestroyProducer(t),
+		Steps: []resource.TestStep{
+			{
+				Config: testAccOSConfigPatchDeployment_osConfigPatchDeploymentDailyMidnightExample(context),
+			},
+			{
+				ResourceName:            "google_os_config_patch_deployment.patch",
+				ImportState:             true,
+				ImportStateVerify:       true,
+				ImportStateVerifyIgnore: []string{"patch_deployment_id"},
+			},
+		},
+	})
+}
+
+func testAccOSConfigPatchDeployment_osConfigPatchDeploymentDailyMidnightExample(context map[string]interface{}) string {
+	return Nprintf(`
+resource "google_os_config_patch_deployment" "patch" {
+  patch_deployment_id = "tf-test-patch-deploy%{random_suffix}"
+
+  instance_filter {
+    all = true
+  }
+
+  recurring_schedule {
+    time_zone {
+      id = "America/New_York"
+    }
+
+    time_of_day {
+      hours = 0
+      minutes = 0
+      seconds = 0
+      nanos = 0
+    }
+  }
+}
+`, context)
+}
+
 func TestAccOSConfigPatchDeployment_osConfigPatchDeploymentInstanceExample(t *testing.T) {
 	t.Parallel()
 

website/docs/r/os_config_patch_deployment.html.markdown

@@ -83,6 +83,36 @@ resource "google_os_config_patch_deployment" "patch" {
   }
 }
 ```
+<div class = "oics-button" style="float: right; margin: 0 0 -15px">
+  <a href="https://console.cloud.google.com/cloudshell/open?cloudshell_git_repo=https%3A%2F%2Fgit.luolix.top%2Fterraform-google-modules%2Fdocs-examples.git&cloudshell_working_dir=os_config_patch_deployment_daily_midnight&cloudshell_image=gcr.io%2Fgraphite-cloud-shell-images%2Fterraform%3Alatest&open_in_editor=main.tf&cloudshell_print=.%2Fmotd&cloudshell_tutorial=.%2Ftutorial.md" target="_blank">
+    <img alt="Open in Cloud Shell" src="//gstatic.com/cloudssh/images/open-btn.svg" style="max-height: 44px; margin: 32px auto; max-width: 100%;">
+  </a>
+</div>
+## Example Usage - Os Config Patch Deployment Daily Midnight
+
+
+```hcl
+resource "google_os_config_patch_deployment" "patch" {
+  patch_deployment_id = "patch-deploy"
+
+  instance_filter {
+    all = true
+  }
+
+  recurring_schedule {
+    time_zone {
+      id = "America/New_York"
+    }
+
+    time_of_day {
+      hours = 0
+      minutes = 0
+      seconds = 0
+      nanos = 0
+    }
+  }
+}
+```
 <div class = "oics-button" style="float: right; margin: 0 0 -15px">
   <a href="https://console.cloud.google.com/cloudshell/open?cloudshell_git_repo=https%3A%2F%2Fgit.luolix.top%2Fterraform-google-modules%2Fdocs-examples.git&cloudshell_working_dir=os_config_patch_deployment_instance&cloudshell_image=gcr.io%2Fgraphite-cloud-shell-images%2Fterraform%3Alatest&open_in_editor=main.tf&cloudshell_print=.%2Fmotd&cloudshell_tutorial=.%2Ftutorial.md" target="_blank">
     <img alt="Open in Cloud Shell" src="//gstatic.com/cloudssh/images/open-btn.svg" style="max-height: 44px; margin: 32px auto; max-width: 100%;">