Définir une clé KMS par défaut pour un bucket

Définit une clé CMEK par défaut pour un bucket.

En savoir plus

Pour obtenir une documentation détaillée incluant cet exemple de code, consultez les pages suivantes :

Utiliser les clés de chiffrement gérées par le client

Exemple de code

C++

Pour en savoir plus, consultez la documentation de référence de l'API Cloud Storage en langage C++.

Pour vous authentifier auprès de Cloud Storage, configurez le service Identifiants par défaut de l'application. Pour en savoir plus, consultez Configurer l'authentification pour un environnement de développement local.

namespace gcs = ::google::cloud::storage;
using ::google::cloud::StatusOr;
[](gcs::Client client, std::string const& bucket_name,
   std::string const& key_name) {
  StatusOr<gcs::BucketMetadata> updated = client.PatchBucket(
      bucket_name, gcs::BucketMetadataPatchBuilder().SetEncryption(
                       gcs::BucketEncryption{key_name}));
  if (!updated) throw std::move(updated).status();

  if (!updated->has_encryption()) {
    std::cerr << "The change to set the encryption attribute on bucket "
              << updated->name()
              << " was successful, but the encryption is not set."
              << "This is unexpected, maybe a concurrent change?\n";
    return;
  }

  std::cout << "Successfully set default KMS key on bucket "
            << updated->name() << " to "
            << updated->encryption().default_kms_key_name << "."
            << "\nFull metadata: " << *updated << "\n";
}

C#

Pour en savoir plus, consultez la documentation de référence de l'API Cloud Storage en langage C#.


using Google.Apis.Storage.v1.Data;
using Google.Cloud.Storage.V1;
using System;

public class EnableDefaultKMSKeySample
{
    public Bucket EnableDefaultKMSKey(
        string projectId = "your-project-id",
        string bucketName = "your-unique-bucket-name",
        string keyLocation = "us-west1",
        string kmsKeyRing = "kms-key-ring",
        string kmsKeyName = "key-name")
    {
        // KMS Key identifier of an already created KMS key.
        // If you use the Google.Cloud.Kms.V1 library, you can construct these names using helper class CryptoKeyName.
        // var fullKeyName = new CryptoKeyName(projectId, keyLocation, kmsKeyRing, kmsKeyName).ToString();
        string keyPrefix = $"projects/{projectId}/locations/{keyLocation}";
        string fullKeyringName = $"{keyPrefix}/keyRings/{kmsKeyRing}";
        string fullKeyName = $"{fullKeyringName}/cryptoKeys/{kmsKeyName}";
        var storage = StorageClient.Create();
        var bucket = storage.GetBucket(bucketName, new GetBucketOptions { Projection = Projection.Full });
        bucket.Encryption = new Bucket.EncryptionData { DefaultKmsKeyName = fullKeyName };
        var updatedBucket = storage.UpdateBucket(bucket);
        Console.WriteLine($"Default KMS key for {bucketName} was set to {kmsKeyName}.");
        return updatedBucket;
    }
}

Go

Pour en savoir plus, consultez la documentation de référence de l'API Cloud Storage en langage Go.

import (
	"context"
	"fmt"
	"io"
	"time"

	"cloud.google.com/go/storage"
)

// setBucketDefaultKMSKey sets the Cloud KMS encryption key for the bucket.
func setBucketDefaultKMSKey(w io.Writer, bucketName, keyName string) error {
	// bucketName := "bucket-name"
	// keyName := "key"
	ctx := context.Background()
	client, err := storage.NewClient(ctx)
	if err != nil {
		return fmt.Errorf("storage.NewClient: %w", err)
	}
	defer client.Close()

	ctx, cancel := context.WithTimeout(ctx, time.Second*10)
	defer cancel()

	bucket := client.Bucket(bucketName)
	bucketAttrsToUpdate := storage.BucketAttrsToUpdate{
		Encryption: &storage.BucketEncryption{DefaultKMSKeyName: keyName},
	}
	if _, err := bucket.Update(ctx, bucketAttrsToUpdate); err != nil {
		return fmt.Errorf("Bucket(%q).Update: %w", bucketName, err)
	}
	fmt.Fprintf(w, "Default KMS Key Name: %v", bucketAttrsToUpdate.Encryption.DefaultKMSKeyName)
	return nil
}

Java

Pour en savoir plus, consultez la documentation de référence de l'API Cloud Storage en langage Java.


import com.google.cloud.storage.Bucket;
import com.google.cloud.storage.Storage;
import com.google.cloud.storage.Storage.BucketTargetOption;
import com.google.cloud.storage.StorageException;
import com.google.cloud.storage.StorageOptions;

public class SetBucketDefaultKmsKey {
  public static void setBucketDefaultKmsKey(String projectId, String bucketName, String kmsKeyName)
      throws StorageException {
    // The ID of your GCP project
    // String projectId = "your-project-id";

    // The ID of your GCS bucket
    // String bucketName = "your-unique-bucket-name";

    // The name of the KMS key to use as a default
    // String kmsKeyName =
    // "projects/your-project-id/locations/us/keyRings/my_key_ring/cryptoKeys/my_key"

    Storage storage = StorageOptions.newBuilder().setProjectId(projectId).build().getService();
    // first look up the bucket, so we will have its metageneration
    Bucket bucket = storage.get(bucketName);

    Bucket updated =
        storage.update(
            bucket.toBuilder().setDefaultKmsKeyName(kmsKeyName).build(),
            BucketTargetOption.metagenerationMatch());

    System.out.println(
        "KMS Key "
            + updated.getDefaultKmsKeyName()
            + "was set to default for bucket "
            + bucketName);
  }
}

Node.js

Pour en savoir plus, consultez la documentation de référence de l'API Cloud Storage en langage Node.js.

/**
 * TODO(developer): Uncomment the following lines before running the sample.
 */
// The ID of your GCS bucket
// const bucketName = 'your-unique-bucket-name';

// The name of the KMS-key to use as a default
// const defaultKmsKeyName = 'my-key';

// Imports the Google Cloud client library
const {Storage} = require('@google-cloud/storage');

// Creates a client
const storage = new Storage();

async function enableDefaultKMSKey() {
  await storage.bucket(bucketName).setMetadata({
    encryption: {
      defaultKmsKeyName,
    },
  });

  console.log(
    `Default KMS key for ${bucketName} was set to ${defaultKmsKeyName}.`
  );
}

enableDefaultKMSKey().catch(console.error);

PHP

Pour en savoir plus, consultez la documentation de référence de l'API Cloud Storage en langage PHP.

use Google\Cloud\Storage\StorageClient;

/**
 * Enable a bucket's requesterpays metadata.
 *
 * @param string $bucketName The name of your Cloud Storage bucket.
 *        (e.g. 'my-bucket')
 * @param string $kmsKeyName The KMS key to use as the default KMS key.
 *     Key names are provided in the following format:
 *     `projects/<PROJECT>/locations/<LOCATION>/keyRings/<RING_NAME>/cryptoKeys/<KEY_NAME>`.
 */
function enable_default_kms_key(string $bucketName, string $kmsKeyName): void
{
    $storage = new StorageClient();
    $bucket = $storage->bucket($bucketName);
    $bucket->update([
        'encryption' => [
            'defaultKmsKeyName' => $kmsKeyName
        ]
    ]);
    printf('Default KMS key for %s was set to %s' . PHP_EOL,
        $bucketName,
        $bucket->info()['encryption']['defaultKmsKeyName']);
}

Python

Pour en savoir plus, consultez la documentation de référence de l'API Cloud Storage en langage Python.

from google.cloud import storage


def enable_default_kms_key(bucket_name, kms_key_name):
    """Sets a bucket's default KMS key."""
    # bucket_name = "your-bucket-name"
    # kms_key_name = "projects/PROJ/locations/LOC/keyRings/RING/cryptoKey/KEY"

    storage_client = storage.Client()
    bucket = storage_client.get_bucket(bucket_name)
    bucket.default_kms_key_name = kms_key_name
    bucket.patch()

    print(
        "Set default KMS key for bucket {} to {}.".format(
            bucket.name, bucket.default_kms_key_name
        )
    )

Ruby

Pour en savoir plus, consultez la documentation de référence de l'API Cloud Storage en langage Ruby.

def set_bucket_default_kms_key bucket_name:, default_kms_key:
  # The ID of your GCS bucket
  # bucket_name = "your-unique-bucket-name"

  # The name of the KMS key to manage this object with
  # default_kms_key = "projects/your-project-id/locations/global/keyRings/your-key-ring/cryptoKeys/your-key"

  require "google/cloud/storage"

  storage = Google::Cloud::Storage.new
  bucket  = storage.bucket bucket_name

  bucket.default_kms_key = default_kms_key

  puts "Default KMS key for #{bucket.name} was set to #{bucket.default_kms_key}"
end

Étapes suivantes

Pour rechercher et filtrer des exemples de code pour d'autres produits Google Cloud, consultez l'explorateur d'exemples Google Cloud.