Définir une règle de conservation

Exemple de définition d'une règle de conservation sur un bucket.

En savoir plus

Pour obtenir une documentation détaillée incluant cet exemple de code, consultez la page suivante :

Utiliser et verrouiller des règles de conservation

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::chrono::seconds period) {
  StatusOr<gcs::BucketMetadata> original =
      client.GetBucketMetadata(bucket_name);
  if (!original) throw std::move(original).status();

  StatusOr<gcs::BucketMetadata> patched = client.PatchBucket(
      bucket_name,
      gcs::BucketMetadataPatchBuilder().SetRetentionPolicy(period),
      gcs::IfMetagenerationMatch(original->metageneration()));
  if (!patched) throw std::move(patched).status();

  if (!patched->has_retention_policy()) {
    std::cout << "The bucket " << patched->name()
              << " does not have a retention policy set.\n";
    return;
  }

  std::cout << "The bucket " << patched->name()
            << " retention policy is set to " << patched->retention_policy()
            << "\n";
}

C#

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


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

public class SetRetentionPolicySample
{
    /// <summary>
    /// Sets the bucket's retention policy.
    /// </summary>
    /// <param name="bucketName">The name of the bucket.</param>
    /// <param name="retentionPeriod">The duration in seconds that objects need to be retained. The retention policy enforces a minimum retention
    /// time for all objects contained in the bucket, based on their creation time. Any
    /// attempt to overwrite or delete objects younger than the retention period will
    /// result in a PERMISSION_DENIED error. An unlocked retention policy can be modified
    /// or removed from the bucket via a storage.buckets.update operation. A locked retention
    /// policy cannot be removed or shortened in duration for the lifetime of the bucket.
    /// Attempting to remove or decrease the period of a locked retention policy will result
    /// in a PERMISSION_DENIED error.</param>
    public RetentionPolicyData SetRetentionPolicy(
        string bucketName = "your-unique-bucket-name",
        long retentionPeriod = 10)
    {
        var storage = StorageClient.Create();
        var bucket = storage.GetBucket(bucketName);
        bucket.RetentionPolicy = new RetentionPolicyData { RetentionPeriod = retentionPeriod };

        bucket = storage.UpdateBucket(bucket);

        Console.WriteLine($"Retention policy for {bucketName} was set to {retentionPeriod}");
        return bucket.RetentionPolicy;
    }
}

Go

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

ctx := context.Background()

bucket := c.Bucket(bucketName)
bucketAttrsToUpdate := storage.BucketAttrsToUpdate{
	RetentionPolicy: &storage.RetentionPolicy{
		RetentionPeriod: retentionPeriod,
	},
}
ctx, cancel := context.WithTimeout(ctx, time.Second*10)
defer cancel()
if _, err := bucket.Update(ctx, bucketAttrsToUpdate); err != nil {
	return err
}

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;
import java.time.Duration;

public class SetRetentionPolicy {
  public static void setRetentionPolicy(
      String projectId, String bucketName, Long retentionPeriodSeconds) 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 retention period for objects in bucket
    // Long retentionPeriodSeconds = 3600L; // 1 hour in seconds

    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 bucketWithRetentionPolicy =
        storage.update(
            bucket
                .toBuilder()
                .setRetentionPeriodDuration(Duration.ofSeconds(retentionPeriodSeconds))
                .build(),
            BucketTargetOption.metagenerationMatch());

    System.out.println(
        "Retention period for "
            + bucketName
            + " is now "
            + bucketWithRetentionPolicy.getRetentionPeriodDuration());
  }
}

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 retention period for objects in bucket
// const retentionPeriod = 3600; // 1 hour in seconds

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

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

async function setRetentionPolicy() {
  const [metadata] = await storage
    .bucket(bucketName)
    .setRetentionPeriod(retentionPeriod);
  console.log(
    `Bucket ${bucketName} retention period set for ${metadata.retentionPolicy.retentionPeriod} seconds.`
  );
}

setRetentionPolicy().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;

/**
 * Sets a bucket's retention policy.
 *
 * @param string $bucketName The name of your Cloud Storage bucket.
 *        (e.g. 'my-bucket')
 * @param int $retentionPeriod The retention period for objects in bucket, in seconds.
 *        (e.g. 3600)
 */
function set_retention_policy(string $bucketName, int $retentionPeriod): void
{
    $storage = new StorageClient();
    $bucket = $storage->bucket($bucketName);
    $bucket->update([
        'retentionPolicy' => [
            'retentionPeriod' => $retentionPeriod
        ]]);
    printf('Bucket %s retention period set to %s seconds' . PHP_EOL, $bucketName,
        $retentionPeriod);
}

Python

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

from google.cloud import storage


def set_retention_policy(bucket_name, retention_period):
    """Defines a retention policy on a given bucket"""
    # bucket_name = "my-bucket"
    # retention_period = 10

    storage_client = storage.Client()
    bucket = storage_client.bucket(bucket_name)

    bucket.retention_period = retention_period
    bucket.patch()

    print(
        "Bucket {} retention period set for {} seconds".format(
            bucket.name, bucket.retention_period
        )
    )

Ruby

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

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

  # The retention period for objects in bucket
  # retention_period = 3600 # 1 hour in seconds

  require "google/cloud/storage"

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

  bucket.retention_period = retention_period

  puts "Retention period for #{bucket_name} is now #{bucket.retention_period} seconds."
end

Étapes suivantes

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