Adding support for snapshot chain name

.changelog/6487.txt

@@ -0,0 +1,6 @@
+```release-note:enhancement
+compute: added field `chain_name` to resource `google_compute_snapshot` 
+```
+```release-note:enhancement
+compute: added field `chain_name` to resource `google_compute_resource_policy. snapshot_properties` 
+```

google/resource_compute_resource_policy.go

@@ -301,6 +301,14 @@ the source disk is deleted. Default value: "KEEP_AUTO_SNAPSHOTS" Possible values
 							MaxItems:    1,
 							Elem: &schema.Resource{
 								Schema: map[string]*schema.Schema{
+									"chain_name": {
+										Type:     schema.TypeString,
+										Optional: true,
+										ForceNew: true,
+										Description: `Creates the new snapshot in the snapshot chain labeled with the 
+specified name. The chain name must be 1-63 characters long and comply 
+with RFC1035.`,
+									},
 									"guest_flush": {
 										Type:         schema.TypeBool,
 										Optional:     true,
@@ -793,6 +801,8 @@ func flattenComputeResourcePolicySnapshotSchedulePolicySnapshotProperties(v inte
 		flattenComputeResourcePolicySnapshotSchedulePolicySnapshotPropertiesStorageLocations(original["storageLocations"], d, config)
 	transformed["guest_flush"] =
 		flattenComputeResourcePolicySnapshotSchedulePolicySnapshotPropertiesGuestFlush(original["guestFlush"], d, config)
+	transformed["chain_name"] =
+		flattenComputeResourcePolicySnapshotSchedulePolicySnapshotPropertiesChainName(original["chainName"], d, config)
 	return []interface{}{transformed}
 }
 func flattenComputeResourcePolicySnapshotSchedulePolicySnapshotPropertiesLabels(v interface{}, d *schema.ResourceData, config *Config) interface{} {
@@ -810,6 +820,10 @@ func flattenComputeResourcePolicySnapshotSchedulePolicySnapshotPropertiesGuestFl
 	return v
 }
 
+func flattenComputeResourcePolicySnapshotSchedulePolicySnapshotPropertiesChainName(v interface{}, d *schema.ResourceData, config *Config) interface{} {
+	return v
+}
+
 func flattenComputeResourcePolicyGroupPlacementPolicy(v interface{}, d *schema.ResourceData, config *Config) interface{} {
 	if v == nil {
 		return nil
@@ -1202,6 +1216,13 @@ func expandComputeResourcePolicySnapshotSchedulePolicySnapshotProperties(v inter
 		transformed["guestFlush"] = transformedGuestFlush
 	}
 
+	transformedChainName, err := expandComputeResourcePolicySnapshotSchedulePolicySnapshotPropertiesChainName(original["chain_name"], d, config)
+	if err != nil {
+		return nil, err
+	} else if val := reflect.ValueOf(transformedChainName); val.IsValid() && !isEmptyValue(val) {
+		transformed["chainName"] = transformedChainName
+	}
+
 	return transformed, nil
 }
 
@@ -1225,6 +1246,10 @@ func expandComputeResourcePolicySnapshotSchedulePolicySnapshotPropertiesGuestFlu
 	return v, nil
 }
 
+func expandComputeResourcePolicySnapshotSchedulePolicySnapshotPropertiesChainName(v interface{}, d TerraformResourceData, config *Config) (interface{}, error) {
+	return v, nil
+}
+
 func expandComputeResourcePolicyGroupPlacementPolicy(v interface{}, d TerraformResourceData, config *Config) (interface{}, error) {
 	l := v.([]interface{})
 	if len(l) == 0 || l[0] == nil {

google/resource_compute_resource_policy_generated_test.go

@@ -200,6 +200,61 @@ resource "google_compute_resource_policy" "hourly" {
 `, context)
 }
 
+func TestAccComputeResourcePolicy_resourcePolicySnapshotScheduleChainNameExample(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: testAccCheckComputeResourcePolicyDestroyProducer(t),
+		Steps: []resource.TestStep{
+			{
+				Config: testAccComputeResourcePolicy_resourcePolicySnapshotScheduleChainNameExample(context),
+			},
+			{
+				ResourceName:            "google_compute_resource_policy.hourly",
+				ImportState:             true,
+				ImportStateVerify:       true,
+				ImportStateVerifyIgnore: []string{"region"},
+			},
+		},
+	})
+}
+
+func testAccComputeResourcePolicy_resourcePolicySnapshotScheduleChainNameExample(context map[string]interface{}) string {
+	return Nprintf(`
+resource "google_compute_resource_policy" "hourly" {
+  name   = "policy%{random_suffix}"
+  region = "us-central1"
+  description = "chain name snapshot"
+  snapshot_schedule_policy {
+    schedule {
+      hourly_schedule {
+        hours_in_cycle = 20
+        start_time     = "23:00"
+      }
+    }
+    retention_policy {
+      max_retention_days    = 14
+      on_source_disk_delete = "KEEP_AUTO_SNAPSHOTS"
+    }
+    snapshot_properties {
+      labels = {
+        my_label = "value"
+      }
+      storage_locations = ["us"]
+      guest_flush       = true
+      chain_name = "test-schedule-chain-name"
+    }
+  }
+}
+`, context)
+}
+
 func testAccCheckComputeResourcePolicyDestroyProducer(t *testing.T) func(s *terraform.State) error {
 	return func(s *terraform.State) error {
 		for name, rs := range s.RootModule().Resources {

google/resource_compute_snapshot.go

@@ -62,6 +62,17 @@ character, which cannot be a dash.`,
 				DiffSuppressFunc: compareSelfLinkOrResourceName,
 				Description:      `A reference to the disk used to create this snapshot.`,
 			},
+			"chain_name": {
+				Type:     schema.TypeString,
+				Optional: true,
+				ForceNew: true,
+				Description: `Creates the new snapshot in the snapshot chain labeled with the 
+specified name. The chain name must be 1-63 characters long and 
+comply with RFC1035. This is an uncommon option only for advanced 
+service owners who needs to create separate snapshot chains, for 
+example, for chargeback tracking.  When you describe your snapshot 
+resource, this field is visible only if it has a non-empty value.`,
+			},
 			"description": {
 				Type:        schema.TypeString,
 				Optional:    true,
@@ -222,6 +233,12 @@ func resourceComputeSnapshotCreate(d *schema.ResourceData, meta interface{}) err
 	}
 
 	obj := make(map[string]interface{})
+	chainNameProp, err := expandComputeSnapshotChainName(d.Get("chain_name"), d, config)
+	if err != nil {
+		return err
+	} else if v, ok := d.GetOkExists("chain_name"); !isEmptyValue(reflect.ValueOf(chainNameProp)) && (ok || !reflect.DeepEqual(v, chainNameProp)) {
+		obj["chainName"] = chainNameProp
+	}
 	nameProp, err := expandComputeSnapshotName(d.Get("name"), d, config)
 	if err != nil {
 		return err
@@ -379,6 +396,9 @@ func resourceComputeSnapshotRead(d *schema.ResourceData, meta interface{}) error
 	if err := d.Set("disk_size_gb", flattenComputeSnapshotDiskSizeGb(res["diskSizeGb"], d, config)); err != nil {
 		return fmt.Errorf("Error reading Snapshot: %s", err)
 	}
+	if err := d.Set("chain_name", flattenComputeSnapshotChainName(res["chainName"], d, config)); err != nil {
+		return fmt.Errorf("Error reading Snapshot: %s", err)
+	}
 	if err := d.Set("name", flattenComputeSnapshotName(res["name"], d, config)); err != nil {
 		return fmt.Errorf("Error reading Snapshot: %s", err)
 	}
@@ -579,6 +599,10 @@ func flattenComputeSnapshotDiskSizeGb(v interface{}, d *schema.ResourceData, con
 	return v // let terraform core handle it otherwise
 }
 
+func flattenComputeSnapshotChainName(v interface{}, d *schema.ResourceData, config *Config) interface{} {
+	return v
+}
+
 func flattenComputeSnapshotName(v interface{}, d *schema.ResourceData, config *Config) interface{} {
 	return v
 }
@@ -665,6 +689,10 @@ func flattenComputeSnapshotSnapshotEncryptionKeyKmsKeyServiceAccount(v interface
 	return v
 }
 
+func expandComputeSnapshotChainName(v interface{}, d TerraformResourceData, config *Config) (interface{}, error) {
+	return v, nil
+}
+
 func expandComputeSnapshotName(v interface{}, d TerraformResourceData, config *Config) (interface{}, error) {
 	return v, nil
 }

google/resource_compute_snapshot_generated_test.go

@@ -75,6 +75,59 @@ resource "google_compute_disk" "persistent" {
 `, context)
 }
 
+func TestAccComputeSnapshot_snapshotChainnameExample(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: testAccCheckComputeSnapshotDestroyProducer(t),
+		Steps: []resource.TestStep{
+			{
+				Config: testAccComputeSnapshot_snapshotChainnameExample(context),
+			},
+			{
+				ResourceName:            "google_compute_snapshot.snapshot",
+				ImportState:             true,
+				ImportStateVerify:       true,
+				ImportStateVerifyIgnore: []string{"source_disk", "zone", "source_disk_encryption_key"},
+			},
+		},
+	})
+}
+
+func testAccComputeSnapshot_snapshotChainnameExample(context map[string]interface{}) string {
+	return Nprintf(`
+resource "google_compute_snapshot" "snapshot" {
+  name        = "tf-test-my-snapshot%{random_suffix}"
+  source_disk = google_compute_disk.persistent.id
+  zone        = "us-central1-a"
+  chain_name  = "tf-test-snapshot-chain%{random_suffix}"
+  labels = {
+    my_label = "value"
+  }
+  storage_locations = ["us-central1"]
+}
+
+data "google_compute_image" "debian" {
+  family  = "debian-11"
+  project = "debian-cloud"
+}
+
+resource "google_compute_disk" "persistent" {
+  name  = "tf-test-debian-disk%{random_suffix}"
+  image = data.google_compute_image.debian.self_link
+  size  = 10
+  type  = "pd-ssd"
+  zone  = "us-central1-a"
+}
+`, context)
+}
+
 func testAccCheckComputeSnapshotDestroyProducer(t *testing.T) func(s *terraform.State) error {
 	return func(s *terraform.State) error {
 		for name, rs := range s.RootModule().Resources {

website/docs/r/compute_resource_policy.html.markdown

@@ -121,6 +121,41 @@ resource "google_compute_resource_policy" "hourly" {
   }
 }
 ```
+<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%2Fgithub.com%2Fterraform-google-modules%2Fdocs-examples.git&cloudshell_working_dir=resource_policy_snapshot_schedule_chain_name&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 - Resource Policy Snapshot Schedule Chain Name
+
+
+```hcl
+resource "google_compute_resource_policy" "hourly" {
+  name   = "policy"
+  region = "us-central1"
+  description = "chain name snapshot"
+  snapshot_schedule_policy {
+    schedule {
+      hourly_schedule {
+        hours_in_cycle = 20
+        start_time     = "23:00"
+      }
+    }
+    retention_policy {
+      max_retention_days    = 14
+      on_source_disk_delete = "KEEP_AUTO_SNAPSHOTS"
+    }
+    snapshot_properties {
+      labels = {
+        my_label = "value"
+      }
+      storage_locations = ["us"]
+      guest_flush       = true
+      chain_name = "test-schedule-chain-name"
+    }
+  }
+}
+```
 
 ## Argument Reference
 
@@ -277,6 +312,12 @@ The following arguments are supported:
   (Optional)
   Whether to perform a 'guest aware' snapshot.
 
+* `chain_name` -
+  (Optional)
+  Creates the new snapshot in the snapshot chain labeled with the 
+  specified name. The chain name must be 1-63 characters long and comply 
+  with RFC1035.
+
 <a name="nested_group_placement_policy"></a>The `group_placement_policy` block supports:
 
 * `vm_count` -

website/docs/r/compute_snapshot.html.markdown

@@ -67,6 +67,39 @@ data "google_compute_image" "debian" {
   project = "debian-cloud"
 }
 
+resource "google_compute_disk" "persistent" {
+  name  = "debian-disk"
+  image = data.google_compute_image.debian.self_link
+  size  = 10
+  type  = "pd-ssd"
+  zone  = "us-central1-a"
+}
+```
+<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%2Fgithub.com%2Fterraform-google-modules%2Fdocs-examples.git&cloudshell_working_dir=snapshot_chainname&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 - Snapshot Chainname
+
+
+```hcl
+resource "google_compute_snapshot" "snapshot" {
+  name        = "my-snapshot"
+  source_disk = google_compute_disk.persistent.id
+  zone        = "us-central1-a"
+  chain_name  = "snapshot-chain"
+  labels = {
+    my_label = "value"
+  }
+  storage_locations = ["us-central1"]
+}
+
+data "google_compute_image" "debian" {
+  family  = "debian-11"
+  project = "debian-cloud"
+}
+
 resource "google_compute_disk" "persistent" {
   name  = "debian-disk"
   image = data.google_compute_image.debian.self_link
@@ -99,6 +132,15 @@ The following arguments are supported:
 - - -
 
 
+* `chain_name` -
+  (Optional)
+  Creates the new snapshot in the snapshot chain labeled with the 
+  specified name. The chain name must be 1-63 characters long and 
+  comply with RFC1035. This is an uncommon option only for advanced 
+  service owners who needs to create separate snapshot chains, for 
+  example, for chargeback tracking.  When you describe your snapshot 
+  resource, this field is visible only if it has a non-empty value.
+
 * `description` -
   (Optional)
   An optional description of this resource.