Update labels on an existing key

Update labels on an existing key.

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Code sample

C#

To learn how to install and use the client library for Cloud KMS, see Cloud KMS client libraries.



using Google.Cloud.Kms.V1;
using Google.Protobuf.WellKnownTypes;

public class UpdateKeyUpdateLabelsSample
{
    public CryptoKey UpdateKeyUpdateLabels(string projectId = "my-project", string locationId = "us-east1", string keyRingId = "my-key-ring", string keyId = "my-key")
    {
        // Create the client.
        KeyManagementServiceClient client = KeyManagementServiceClient.Create();

        // Build the key name.
        CryptoKeyName keyName = new CryptoKeyName(projectId, locationId, keyRingId, keyId);

        //
        // Step 1 - get the current set of labels on the key
        //

        // Get the current key.
        CryptoKey key = client.GetCryptoKey(keyName);


        //
        // Step 2 - add a label to the list of labels
        //

        // Add a new label
        key.Labels["new_label"] = "new_value";

        // Build the update mask.
        FieldMask fieldMask = new FieldMask
        {
            Paths = { "labels" }
        };

        // Call the API.
        CryptoKey result = client.UpdateCryptoKey(key, fieldMask);

        // Return the updated key.
        return result;
    }
}

Go

To learn how to install and use the client library for Cloud KMS, see Cloud KMS client libraries.

import (
	"context"
	"fmt"
	"io"

	kms "cloud.google.com/go/kms/apiv1"
	kmspb "google.golang.org/genproto/googleapis/cloud/kms/v1"
	fieldmask "google.golang.org/genproto/protobuf/field_mask"
)

// updateKeyUpdateLabels updates an existing KMS key, adding a new label.
func updateKeyUpdateLabels(w io.Writer, name string) error {
	// name := "projects/my-project/locations/us-east1/keyRings/my-key-ring/cryptoKeys/my-key"

	// Create the client.
	ctx := context.Background()
	client, err := kms.NewKeyManagementClient(ctx)
	if err != nil {
		return fmt.Errorf("failed to create kms client: %v", err)
	}
	defer client.Close()

	//
	// Step 1 - get the current set of labels on the key
	//

	// Build the request.
	getReq := &kmspb.GetCryptoKeyRequest{
		Name: name,
	}

	// Call the API.
	result, err := client.GetCryptoKey(ctx, getReq)
	if err != nil {
		return fmt.Errorf("failed to get key: %v", err)
	}

	//
	// Step 2 - add a label to the list of labels
	//

	labels := result.Labels
	labels["new_label"] = "new_value"

	// Build the request.
	updateReq := &kmspb.UpdateCryptoKeyRequest{
		CryptoKey: &kmspb.CryptoKey{
			Name:   name,
			Labels: labels,
		},
		UpdateMask: &fieldmask.FieldMask{
			Paths: []string{"labels"},
		},
	}

	// Call the API.
	result, err = client.UpdateCryptoKey(ctx, updateReq)
	if err != nil {
		return fmt.Errorf("failed to update key: %v", err)
	}

	// Print the labels.
	for k, v := range result.Labels {
		fmt.Fprintf(w, "%s=%s\n", k, v)
	}
	return nil
}

Java

To learn how to install and use the client library for Cloud KMS, see Cloud KMS client libraries.

import com.google.cloud.kms.v1.CryptoKey;
import com.google.cloud.kms.v1.CryptoKeyName;
import com.google.cloud.kms.v1.KeyManagementServiceClient;
import com.google.protobuf.FieldMask;
import com.google.protobuf.util.FieldMaskUtil;
import java.io.IOException;

public class UpdateKeyUpdateLabels {

  public void updateKeyUpdateLabels() throws IOException {
    // TODO(developer): Replace these variables before running the sample.
    String projectId = "your-project-id";
    String locationId = "us-east1";
    String keyRingId = "my-key-ring";
    String keyId = "my-key";
    updateKeyUpdateLabels(projectId, locationId, keyRingId, keyId);
  }

  // Create a new key that is used for symmetric encryption and decryption.
  public void updateKeyUpdateLabels(
      String projectId, String locationId, String keyRingId, String keyId) throws IOException {
    // Initialize client that will be used to send requests. This client only
    // needs to be created once, and can be reused for multiple requests. After
    // completing all of your requests, call the "close" method on the client to
    // safely clean up any remaining background resources.
    try (KeyManagementServiceClient client = KeyManagementServiceClient.create()) {
      // Build the parent name from the project, location, and key ring.
      CryptoKeyName cryptoKeyName = CryptoKeyName.of(projectId, locationId, keyRingId, keyId);

      //
      // Step 1 - get the current set of labels on the key
      //

      // Get the current key.
      CryptoKey key = client.getCryptoKey(cryptoKeyName);

      //
      // Step 2 - add a label to the list of labels
      //

      // Add a new label.
      key = key.toBuilder().putLabels("new_label", "new_value").build();

      // Construct the field mask.
      FieldMask fieldMask = FieldMaskUtil.fromString("labels");

      // Update the key.
      CryptoKey updatedKey = client.updateCryptoKey(key, fieldMask);
      System.out.printf("Updated key %s%n", updatedKey.getName());
    }
  }
}

Node.js

To learn how to install and use the client library for Cloud KMS, see Cloud KMS client libraries.

//
// TODO(developer): Uncomment these variables before running the sample.
//
// const projectId = 'my-project';
// const locationId = 'us-east1';
// const keyRingId = 'my-key-ring';
// const keyId = 'my-key';
// const versionId = '123';

// Imports the Cloud KMS library
const {KeyManagementServiceClient} = require('@google-cloud/kms');

// Instantiates a client
const client = new KeyManagementServiceClient();

// Build the key name
const keyName = client.cryptoKeyPath(projectId, locationId, keyRingId, keyId);

async function updateKeyUpdateLabels() {
  const [key] = await client.updateCryptoKey({
    cryptoKey: {
      name: keyName,
      labels: {
        new_label: 'new_value',
      },
    },
    updateMask: {
      paths: ['labels'],
    },
  });

  console.log(`Updated labels for: ${key.name}`);
  return key;
}

return updateKeyUpdateLabels();

PHP

To learn how to install and use the client library for Cloud KMS, see Cloud KMS client libraries.

use Google\Cloud\Kms\V1\CryptoKey;
use Google\Cloud\Kms\V1\KeyManagementServiceClient;
use Google\Protobuf\FieldMask;

function update_key_update_labels_sample(
    string $projectId = 'my-project',
    string $locationId = 'us-east1',
    string $keyRingId = 'my-key-ring',
    string $keyId = 'my-key'
) {
    // Create the Cloud KMS client.
    $client = new KeyManagementServiceClient();

    // Build the key name.
    $keyName = $client->cryptoKeyName($projectId, $locationId, $keyRingId, $keyId);

    // Build the key.
    $key = (new CryptoKey())
        ->setName($keyName)
        ->setLabels(['new_label' => 'new_value']);

    // Create the field mask.
    $updateMask = (new FieldMask())
        ->setPaths(['labels']);

    // Call the API.
    $updatedKey = $client->updateCryptoKey($key, $updateMask);
    printf('Updated key: %s' . PHP_EOL, $updatedKey->getName());
    return $updatedKey;
}

Python

To learn how to install and use the client library for Cloud KMS, see Cloud KMS client libraries.

def update_key_update_labels(project_id, location_id, key_ring_id, key_id):
    """
    Update labels on an existing key.

    Args:
        project_id (string): Google Cloud project ID (e.g. 'my-project').
        location_id (string): Cloud KMS location (e.g. 'us-east1').
        key_ring_id (string): ID of the Cloud KMS key ring (e.g. 'my-key-ring').
        key_id (string): ID of the key to use (e.g. 'my-key').

    Returns:
        CryptoKey: Updated Cloud KMS key.

    """

    # Import the client library.
    from google.cloud import kms

    # Create the client.
    client = kms.KeyManagementServiceClient()

    # Build the key name.
    key_name = client.crypto_key_path(project_id, location_id, key_ring_id, key_id)

    key = {
        'name': key_name,
        'labels': {
            'new_label': 'new_value'
        }
    }

    # Build the update mask.
    update_mask = {'paths': ['labels']}

    # Call the API.
    updated_key = client.update_crypto_key(request={'crypto_key': key, 'update_mask': update_mask})
    print('Updated key: {}'.format(updated_key.name))
    return updated_key

Ruby

To learn how to install and use the client library for Cloud KMS, see Cloud KMS client libraries.

# TODO(developer): uncomment these values before running the sample.
# project_id  = "my-project"
# location_id = "us-east1"
# key_ring_id = "my-key-ring"
# key_id      = "my-key"

# Require the library.
require "google/cloud/kms"

# Create the client.
client = Google::Cloud::Kms.key_management_service

# Build the parent key name.
key_name = client.crypto_key_path project:    project_id,
                                  location:   location_id,
                                  key_ring:   key_ring_id,
                                  crypto_key: key_id

# Build the key.
key = {
  name:   key_name,
  labels: {
    "new_label" => "new_value"
  }
}

# Build the field mask.
update_mask = { paths: ["labels"] }

# Call the API.
updated_key = client.update_crypto_key crypto_key: key, update_mask: update_mask
puts "Updated key: #{updated_key.name}"

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