Hosting a static website

This tutorial describes how to configure a Cloud Storage bucket to host a static website for a domain you own. Static web pages can contain client-side technologies such as HTML, CSS, and JavaScript. They cannot contain dynamic content such as server-side scripts like PHP.

Since Cloud Storage doesn't support custom domains with HTTPS on its own, this tutorial uses Cloud Storage with HTTP(S) Load Balancing to serve content from a custom domain over HTTPS. For more ways to serve content from a custom domain over HTTPS, see the related troubleshooting topic. You can also use Cloud Storage to serve custom domain content over HTTP, which doesn't require a load balancer.

For examples and tips on static web pages, including how to host static assets for a dynamic website, see the Static Website page.

Caution: This tutorial makes content available to the public internet. We recommend that you don't serve content that contains sensitive or private data from your Cloud Storage bucket.

Objectives

This tutorial shows you how to:

• Create a bucket.
• Upload and share your site's files.
• Set up a load balancer and SSL certificate.
• Connect your load balancer to your bucket.
• Point your domain to your load balancer using an A record.
• Test the website.

Costs

This tutorial uses the following billable components of Google Cloud:

• Cloud Storage
• Cloud Load Balancing

See the Monitoring your charges tip for details on what charges may be incurred when hosting a static website.

Before you begin

1. Sign in to your Google Cloud account. If you're new to Google Cloud, create an account to evaluate how our products perform in real-world scenarios. New customers also get $300 in free credits to run, test, and deploy workloads.

2. In the Google Cloud Console, on the project selector page, select or create a Google Cloud project.

   Note: If you don't plan to keep the resources that you create in this procedure, create a project instead of selecting an existing project. After you finish these steps, you can delete the project, removing all resources associated with the project.

   Go to project selector

3. Make sure that billing is enabled for your Cloud project. Learn how to confirm that billing is enabled for your project.

4. Have a domain that you own or manage. If you don't have an existing domain, there are many services through which you can register a new domain, such as Google Domains.

   This tutorial uses the domain example.com.

5. Have a few website files you want to serve. This tutorial works best if you have at least an index page (index.html) and a 404 page (404.html).
6. Have the following Identity and Access Management roles: Storage Object Admin and Network Admin.
7. (Optional) You can give your Cloud Storage bucket the same name as your domain. To do so, you must Verify that you own or manage the domain that you will be using. Make sure you are verifying the top-level domain, such as example.com, and not a subdomain, such as www.example.com.

   Note: If you own the domain you are associating to a bucket, you might have already performed this step in the past. If you purchased your domain through Google Domains, verification is automatic.

Note: For information about using Cloud DNS to set up your domain, see Set up your domain using Cloud DNS.

Creating a bucket

To create a bucket:

Console

1. In the Google Cloud Console, go to the Cloud Storage Browser page.
   

   Go to Browser

2. Click Create bucket.
3. On the Create a bucket page, enter your bucket information. To go to the next step, click Continue.
   • For Name your bucket, enter a name that meets the bucket naming requirements.
   • For Choose where to store your data, select a Location type and Location option where the bucket data will be permanently stored.
   • For Choose a default storage class for your data, select a storage class for the bucket. The default storage class is assigned by default to all objects uploaded to the bucket.

     Note: The Monthly cost estimate panel in the right pane estimates the bucket's monthly costs based on your selected storage class and location, as well as your expected data size and operations.

   • For Choose how to control access to objects, select whether or not your bucket enforces public access prevention, and select an Access control model for your bucket's objects.

     Note: If public access prevention is already enforced by your project's organization policy, the Prevent public access toggle is locked.

   • For Advanced settings (optional), add bucket labels, set a retention policy, and choose an encryption method.
4. Click Create.

To learn how to get detailed error information about failed operations in the Cloud Storage browser, see Troubleshooting.

gsutil

Use the gsutil mb command:

gsutil mb gs://BUCKET_NAME

Where:

• BUCKET_NAME is the name you want to give your bucket, subject to naming requirements. For example, my-bucket.

If the request is successful, the command returns the following message:

Creating gs://BUCKET_NAME/...

Set the following optional flags to have greater control over the creation of your bucket:

• -p: Specify the project with which your bucket will be associated. For example, my-project.
• -c: Specify the default storage class of your bucket. For example, NEARLINE.
• -l: Specify the location of your bucket. For example, US-EAST1.
• -b: Enable uniform bucket-level access for your bucket.

For example:

  gsutil mb -p PROJECT_ID -c STORAGE_CLASS -l BUCKET_LOCATION -b on gs://BUCKET_NAME

Code samples

Note: Other options for creating a new bucket can be found in the JSON API reference for bucket.insert

C++

For more information, see the Cloud Storage C++ API reference documentation.

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namespace gcs = google::cloud::storage;
using ::google::cloud::StatusOr;
[](gcs::Client client, std::string const& bucket_name,
   std::string const& storage_class, std::string const& location) {
  StatusOr<gcs::BucketMetadata> bucket_metadata =
      client.CreateBucket(bucket_name, gcs::BucketMetadata()
                                           .set_storage_class(storage_class)
                                           .set_location(location));

  if (!bucket_metadata) {
    throw std::runtime_error(bucket_metadata.status().message());
  }

  std::cout << "Bucket " << bucket_metadata->name() << " created."
            << "\nFull Metadata: " << *bucket_metadata << "\n";
}

C#

For more information, see the Cloud Storage C# API reference documentation.

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

public class CreateRegionalBucketSample
{
    /// <summary>
    /// Creates a storage bucket with region.
    /// </summary>
    /// <param name="projectId">The ID of the project to create the buckets in.</param>
    /// <param name="location">The location of the bucket. Object data for objects in the bucket resides in 
    /// physical storage within this region. Defaults to US.</param>
    /// <param name="bucketName">The name of the bucket to create.</param>
    /// <param name="storageClass">The bucket's default storage class, used whenever no storageClass is specified
    /// for a newly-created object. This defines how objects in the bucket are stored
    /// and determines the SLA and the cost of storage. Values include MULTI_REGIONAL,
    /// REGIONAL, STANDARD, NEARLINE, COLDLINE, ARCHIVE, and DURABLE_REDUCED_AVAILABILITY.
    /// If this value is not specified when the bucket is created, it will default to
    /// STANDARD.</param>
    public Bucket CreateRegionalBucket(
        string projectId = "your-project-id",
        string bucketName = "your-unique-bucket-name",
        string location = "us-west1",
        string storageClass = "REGIONAL")
    {
        var storage = StorageClient.Create();
        Bucket bucket = new Bucket
        {
            Location = location,
            Name = bucketName,
            StorageClass = storageClass
        };
        var newlyCreatedBucket = storage.CreateBucket(projectId, bucket);
        Console.WriteLine($"Created {bucketName}.");
        return newlyCreatedBucket;
    }
}

Go

For more information, see the Cloud Storage Go API reference documentation.

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

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

// createBucketClassLocation creates a new bucket in the project with Storage class and
// location.
func createBucketClassLocation(w io.Writer, projectID, bucketName string) error {
	// projectID := "my-project-id"
	// bucketName := "bucket-name"
	ctx := context.Background()
	client, err := storage.NewClient(ctx)
	if err != nil {
		return fmt.Errorf("storage.NewClient: %v", err)
	}
	defer client.Close()

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

	storageClassAndLocation := &storage.BucketAttrs{
		StorageClass: "COLDLINE",
		Location:     "asia",
	}
	bucket := client.Bucket(bucketName)
	if err := bucket.Create(ctx, projectID, storageClassAndLocation); err != nil {
		return fmt.Errorf("Bucket(%q).Create: %v", bucketName, err)
	}
	fmt.Fprintf(w, "Created bucket %v in %v with storage class %v\n", bucketName, storageClassAndLocation.Location, storageClassAndLocation.StorageClass)
	return nil
}

Java

For more information, see the Cloud Storage Java API reference documentation.

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import com.google.cloud.storage.Bucket;
import com.google.cloud.storage.BucketInfo;
import com.google.cloud.storage.Storage;
import com.google.cloud.storage.StorageClass;
import com.google.cloud.storage.StorageOptions;

public class CreateBucketWithStorageClassAndLocation {
  public static void createBucketWithStorageClassAndLocation(String projectId, String bucketName) {
    // The ID of your GCP project
    // String projectId = "your-project-id";

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

    Storage storage = StorageOptions.newBuilder().setProjectId(projectId).build().getService();

    // See the StorageClass documentation for other valid storage classes:
    // https://googleapis.dev/java/google-cloud-clients/latest/com/google/cloud/storage/StorageClass.html
    StorageClass storageClass = StorageClass.COLDLINE;

    // See this documentation for other valid locations:
    // http://g.co/cloud/storage/docs/bucket-locations#location-mr
    String location = "ASIA";

    Bucket bucket =
        storage.create(
            BucketInfo.newBuilder(bucketName)
                .setStorageClass(storageClass)
                .setLocation(location)
                .build());

    System.out.println(
        "Created bucket "
            + bucket.getName()
            + " in "
            + bucket.getLocation()
            + " with storage class "
            + bucket.getStorageClass());
  }
}

Node.js

For more information, see the Cloud Storage Node.js API reference documentation.

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/**
 * 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 a storage class
// See the StorageClass documentation for other valid storage classes:
// https://googleapis.dev/java/google-cloud-clients/latest/com/google/cloud/storage/StorageClass.html
// const storageClass = 'coldline';

// The name of a location
// See this documentation for other valid locations:
// http://g.co/cloud/storage/docs/bucket-locations#location-mr
// const location = 'ASIA';

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

// Creates a client
// The bucket in the sample below will be created in the project associated with this client.
// For more information, please see https://cloud.google.com/docs/authentication/production or https://googleapis.dev/nodejs/storage/latest/Storage.html
const storage = new Storage();

async function createBucketWithStorageClassAndLocation() {
  // For default values see: https://cloud.google.com/storage/docs/locations and
  // https://cloud.google.com/storage/docs/storage-classes
  const [bucket] = await storage.createBucket(bucketName, {
    location,
    [storageClass]: true,
  });

  console.log(
    `${bucket.name} created with ${storageClass} class in ${location}`
  );
}

createBucketWithStorageClassAndLocation().catch(console.error);

PHP

For more information, see the Cloud Storage PHP API reference documentation.

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use Google\Cloud\Storage\StorageClient;

/**
 * Create a Cloud Storage Bucket.
 *
 * @param string $bucketName name of the bucket to create.
 * @param string $options options for the new bucket.
 *
 */
function create_bucket($bucketName, $options = [])
{
    $storage = new StorageClient();
    $bucket = $storage->createBucket($bucketName, $options);
    printf('Bucket created: %s' . PHP_EOL, $bucket->name());
}

Python

For more information, see the Cloud Storage Python API reference documentation.

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from google.cloud import storage


def create_bucket_class_location(bucket_name):
    """Create a new bucket in specific location with storage class"""
    # bucket_name = "your-new-bucket-name"

    storage_client = storage.Client()

    bucket = storage_client.bucket(bucket_name)
    bucket.storage_class = "COLDLINE"
    new_bucket = storage_client.create_bucket(bucket, location="us")

    print(
        "Created bucket {} in {} with storage class {}".format(
            new_bucket.name, new_bucket.location, new_bucket.storage_class
        )
    )
    return new_bucket

Ruby

For more information, see the Cloud Storage Ruby API reference documentation.

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def create_bucket_class_location bucket_name:
  # The ID to give your GCS bucket
  # bucket_name = "your-unique-bucket-name"

  require "google/cloud/storage"

  storage = Google::Cloud::Storage.new
  bucket  = storage.create_bucket bucket_name,
                                  location:      "ASIA",
                                  storage_class: "COLDLINE"

  puts "Created bucket #{bucket.name} in #{bucket.location} with #{bucket.storage_class} class"
end

REST APIS

JSON API

1. Get an authorization access token from the OAuth 2.0 Playground. Configure the playground to use your own OAuth credentials.
2. Create a .json file that contains the settings for the bucket, which must include a name for the bucket. See the Buckets:Insert documentation for a complete list of settings. The following are common settings to include:

{
  "name": "BUCKET_NAME",
  "location": "BUCKET_LOCATION",
  "storageClass": "STORAGE_CLASS",
  "iamConfiguration": {
    "uniformBucketLevelAccess": {
      "enabled": true
    },
  }
}

Where:

• BUCKET_NAME is the name you want to give your bucket, subject to naming requirements. For example, my-bucket.
• BUCKET_LOCATION is the location where you want to store your bucket's object data. For example, US-EAST1.
• STORAGE_CLASS is the default storage class of your bucket. For example, NEARLINE.
3. Use cURL to call the JSON API:

   curl -X POST --data-binary @JSON_FILE_NAME.json \
        -H "Authorization: Bearer OAUTH2_TOKEN" \
        -H "Content-Type: application/json" \
        "https://storage.googleapis.com/storage/v1/b?project=PROJECT_ID"

   Where:

   • JSON_FILE_NAME is name of the JSON file you created in Step 2.
   • OAUTH2_TOKEN is the access token you generated in Step 1.
   • PROJECT_ID is the ID of the project with which your bucket will be associated. For example, my-project.

XML API

1. Get an authorization access token from the OAuth 2.0 Playground. Configure the playground to use your own OAuth credentials.
2. Create a .xml file that contains the following information:

<CreateBucketConfiguration>
   <LocationConstraint>BUCKET_LOCATION</LocationConstraint>
   <StorageClass>STORAGE_CLASS</StorageClass>
</CreateBucketConfiguration>

Where:

• BUCKET_LOCATION is the location where you want to store your bucket's object data. For example, US-EAST1.
• STORAGE_CLASS is the default storage class of your bucket. For example, NEARLINE.
3. Use cURL to call the XML API:

   curl -X PUT --data-binary @XML_FILE_NAME.xml \
        -H "Authorization: Bearer OAUTH2_TOKEN" \
        -H "x-goog-project-id: PROJECT_ID" \
        "https://storage.googleapis.com/BUCKET_NAME"

   Where:

   • XML_FILE_NAME is name of the XML file you created in Step 2.
   • OAUTH2_TOKEN is the access token you generated in Step 1.
   • PROJECT_ID is the ID of the project with which your bucket will be associated. For example, my-project.
   • BUCKET_NAME is the name you want to give your bucket, subject to naming requirements. For example, my-bucket.

Uploading your site's files

Add the files you want your website to serve to the bucket:

Console

1. In the Google Cloud Console, go to the Cloud Storage Browser page.
   

   Go to Browser

2. In the list of buckets, click on the name of the bucket that you created.

   The Bucket details page opens, with the Objects tab selected.

3. Click the Upload files button.

4. In the file dialog, browse to the desired file and select it.

After the upload completes, you should see the file name along with file information displayed in the bucket.

To learn how to get detailed error information about failed operations in the Cloud Storage browser, see Troubleshooting.

gsutil

Use the gsutil cp command to copy files to your bucket. For example, to copy the file index.html from its current location Desktop to the bucket my-static-assets:

gsutil cp Desktop/index.html gs://my-static-assets

If successful, the command returns:

Copying file://Desktop/index.html [Content-Type=text/html]...
Uploading   gs://my-static-assets/index.html:       0 B/2.58 KiB
Uploading   gs://my-static-assets/index.html:       2.58 KiB/2.58 KiB

Code samples

C++

For more information, see the Cloud Storage C++ API reference documentation.

View on GitHub Feedback

namespace gcs = google::cloud::storage;
using ::google::cloud::StatusOr;
[](gcs::Client client, std::string const& file_name,
   std::string const& bucket_name, std::string const& object_name) {
  // Note that the client library automatically computes a hash on the
  // client-side to verify data integrity during transmission.
  StatusOr<gcs::ObjectMetadata> metadata = client.UploadFile(
      file_name, bucket_name, object_name, gcs::IfGenerationMatch(0));
  if (!metadata) throw std::runtime_error(metadata.status().message());

  std::cout << "Uploaded " << file_name << " to object " << metadata->name()
            << " in bucket " << metadata->bucket()
            << "\nFull metadata: " << *metadata << "\n";
}

C#

For more information, see the Cloud Storage C# API reference documentation.

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using Google.Cloud.Storage.V1;
using System;
using System.IO;

public class UploadFileSample
{
    public void UploadFile(
        string bucketName = "your-unique-bucket-name",
        string localPath = "my-local-path/my-file-name",
        string objectName = "my-file-name")
    {
        var storage = StorageClient.Create();
        using var fileStream = File.OpenRead(localPath);
        storage.UploadObject(bucketName, objectName, null, fileStream);
        Console.WriteLine($"Uploaded {objectName}.");
    }
}

Go

For more information, see the Cloud Storage Go API reference documentation.

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

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

// uploadFile uploads an object.
func uploadFile(w io.Writer, bucket, object string) error {
	// bucket := "bucket-name"
	// object := "object-name"
	ctx := context.Background()
	client, err := storage.NewClient(ctx)
	if err != nil {
		return fmt.Errorf("storage.NewClient: %v", err)
	}
	defer client.Close()

	// Open local file.
	f, err := os.Open("notes.txt")
	if err != nil {
		return fmt.Errorf("os.Open: %v", err)
	}
	defer f.Close()

	ctx, cancel := context.WithTimeout(ctx, time.Second*50)
	defer cancel()

	// Upload an object with storage.Writer.
	wc := client.Bucket(bucket).Object(object).NewWriter(ctx)
	if _, err = io.Copy(wc, f); err != nil {
		return fmt.Errorf("io.Copy: %v", err)
	}
	if err := wc.Close(); err != nil {
		return fmt.Errorf("Writer.Close: %v", err)
	}
	fmt.Fprintf(w, "Blob %v uploaded.\n", object)
	return nil
}

Java

For more information, see the Cloud Storage Java API reference documentation.

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import com.google.cloud.storage.BlobId;
import com.google.cloud.storage.BlobInfo;
import com.google.cloud.storage.Storage;
import com.google.cloud.storage.StorageOptions;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Paths;

public class UploadObject {
  public static void uploadObject(
      String projectId, String bucketName, String objectName, String filePath) throws IOException {
    // The ID of your GCP project
    // String projectId = "your-project-id";

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

    // The ID of your GCS object
    // String objectName = "your-object-name";

    // The path to your file to upload
    // String filePath = "path/to/your/file"

    Storage storage = StorageOptions.newBuilder().setProjectId(projectId).build().getService();
    BlobId blobId = BlobId.of(bucketName, objectName);
    BlobInfo blobInfo = BlobInfo.newBuilder(blobId).build();
    storage.create(blobInfo, Files.readAllBytes(Paths.get(filePath)));

    System.out.println(
        "File " + filePath + " uploaded to bucket " + bucketName + " as " + objectName);
  }
}

Node.js

For more information, see the Cloud Storage Node.js API reference documentation.

For more information on uploading a stream, string, or buffer, see File.save().

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

// The path to your file to upload
// const filePath = 'path/to/your/file';

// The new ID for your GCS file
// const destFileName = 'your-new-file-name';

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

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

async function uploadFile() {
  await storage.bucket(bucketName).upload(filePath, {
    destination: destFileName,
  });

  console.log(`${filePath} uploaded to ${bucketName}`);
}

uploadFile().catch(console.error);

PHP

For more information, see the Cloud Storage PHP API reference documentation.

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use Google\Cloud\Storage\StorageClient;

/**
 * Upload a file.
 *
 * @param string $bucketName the name of your Google Cloud bucket.
 * @param string $objectName the name of the object.
 * @param string $source the path to the file to upload.
 *
 * @return Psr\Http\Message\StreamInterface
 */
function upload_object($bucketName, $objectName, $source)
{
    $storage = new StorageClient();
    $file = fopen($source, 'r');
    $bucket = $storage->bucket($bucketName);
    $object = $bucket->upload($file, [
        'name' => $objectName
    ]);
    printf('Uploaded %s to gs://%s/%s' . PHP_EOL, basename($source), $bucketName, $objectName);
}

Python

For more information, see the Cloud Storage Python API reference documentation.

Use the Blob.upload_from_file(), Blob.upload_from_filename(), or Blob.upload_from_string() method to upload an object.

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from google.cloud import storage


def upload_blob(bucket_name, source_file_name, destination_blob_name):
    """Uploads a file to the bucket."""
    # The ID of your GCS bucket
    # bucket_name = "your-bucket-name"
    # The path to your file to upload
    # source_file_name = "local/path/to/file"
    # The ID of your GCS object
    # destination_blob_name = "storage-object-name"

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

    blob.upload_from_filename(source_file_name)

    print(
        "File {} uploaded to {}.".format(
            source_file_name, destination_blob_name
        )
    )

Ruby

For more information, see the Cloud Storage Ruby API reference documentation.

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def upload_file bucket_name:, local_file_path:, file_name: nil
  # The ID of your GCS bucket
  # bucket_name = "your-unique-bucket-name"

  # The path to your file to upload
  # local_file_path = "/local/path/to/file.txt"

  # The ID of your GCS object
  # file_name = "your-file-name"

  require "google/cloud/storage"

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

  file = bucket.create_file local_file_path, file_name

  puts "Uploaded #{local_file_path} as #{file.name} in bucket #{bucket_name}"
end

REST APIs

JSON API

1. Get an authorization access token from the OAuth 2.0 Playground. Configure the playground to use your own OAuth credentials.

2. Use cURL to call the JSON API with a POST Object request. For the file index.html uploaded to a bucket named my-static-assets:

   curl -X POST --data-binary @index.html \
     -H "Content-Type: text/html" \
     -H "Authorization: Bearer ya29.AHES6ZRVmB7fkLtd1XTmq6mo0S1wqZZi3-Lh_s-6Uw7p8vtgSwg" \
     "https://storage.googleapis.com/upload/storage/v1/b/my-static-assets/o?uploadType=media&name=index.html"

XML API

1. Get an authorization access token from the OAuth 2.0 Playground. Configure the playground to use your own OAuth credentials.

2. Use cURL to call the XML API with a PUT Object request. For the file index.html uploaded to a bucket named my-static-assets:

   curl -X PUT --data-binary @index.html \
     -H "Authorization: Bearer ya29.AHES6ZRVmB7fkLtd1XTmq6mo0S1wqZZi3-Lh_s-6Uw7p8vtgSwg" \
     -H "Content-Type: text/html" \
     "https://storage.googleapis.com/my-static-assets/index.html"

Note: If you are migrating an existing website, or copying a large number of files, use gsutil rsync to move your content. You can use the -R option to recursively copy directory trees. For example, to synchronize a local directory named local-dir with a bucket named my-static-assets, use:

gsutil rsync -R local-dir gs://my-static-assets

Sharing your files

To make all objects in your bucket readable to everyone on the public internet:

Caution: Before making your bucket publicly accessible, make sure that the files in your bucket do not contain sensitive or private information.

Console

1. In the Google Cloud Console, go to the Cloud Storage Browser page.
   

   Go to Browser

2. In the list of buckets, click on the name of the bucket that you want to make public.

3. Select the Permissions tab near the top of the page.

4. Click the Add members button.

   The Add members dialog box appears.

5. In the New members field, enter allUsers.

6. In the Select a role drop down, select the Cloud Storage sub-menu, and click the Storage Object Viewer option.

7. Click Save.

8. Click Allow public access.

Once shared publicly, a link icon appears for each object in the public access column. You can click on this icon to get the URL for the object.

To learn how to get detailed error information about failed operations in the Cloud Storage browser, see Troubleshooting.

gsutil

Use the gsutil iam ch command:

gsutil iam ch allUsers:objectViewer gs://my-static-assets

Code samples

C++

For more information, see the Cloud Storage C++ API reference documentation.

View on GitHub Feedback

namespace gcs = google::cloud::storage;
using google::cloud::StatusOr;
[](gcs::Client client, std::string const& bucket_name) {
  auto current_policy = client.GetNativeBucketIamPolicy(
      bucket_name, gcs::RequestedPolicyVersion(3));

  if (!current_policy) {
    throw std::runtime_error(current_policy.status().message());
  }

  current_policy->set_version(3);
  current_policy->bindings().emplace_back(
      gcs::NativeIamBinding("roles/storage.objectViewer", {"allUsers"}));

  auto updated =
      client.SetNativeBucketIamPolicy(bucket_name, *current_policy);
  if (!updated) throw std::runtime_error(updated.status().message());

  std::cout << "Policy successfully updated: " << *updated << "\n";
}

C#

For more information, see the Cloud Storage C# API reference documentation.

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

public class MakePublicSample
{
    public string MakePublic(
        string bucketName = "your-unique-bucket-name",
        string objectName = "your-object-name")
    {
        var storage = StorageClient.Create();
        var storageObject = storage.GetObject(bucketName, objectName);
        storageObject.Acl ??= new List<ObjectAccessControl>();
        storage.UpdateObject(storageObject, new UpdateObjectOptions { PredefinedAcl = PredefinedObjectAcl.PublicRead });
        Console.WriteLine(objectName + " is now public and can be fetched from " + storageObject.MediaLink);

        return storageObject.MediaLink;
    }
}

Go

For more information, see the Cloud Storage Go API reference documentation.

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import (
	"context"
	"fmt"
	"io"

	"cloud.google.com/go/iam"
	"cloud.google.com/go/storage"
	iampb "google.golang.org/genproto/googleapis/iam/v1"
)

// setBucketPublicIAM makes all objects in a bucket publicly readable.
func setBucketPublicIAM(w io.Writer, bucketName string) error {
	// bucketName := "bucket-name"
	ctx := context.Background()
	client, err := storage.NewClient(ctx)
	if err != nil {
		return fmt.Errorf("storage.NewClient: %v", err)
	}
	defer client.Close()

	policy, err := client.Bucket(bucketName).IAM().V3().Policy(ctx)
	if err != nil {
		return fmt.Errorf("Bucket(%q).IAM().V3().Policy: %v", bucketName, err)
	}
	role := "roles/storage.objectViewer"
	policy.Bindings = append(policy.Bindings, &iampb.Binding{
		Role:    role,
		Members: []string{iam.AllUsers},
	})
	if err := client.Bucket(bucketName).IAM().V3().SetPolicy(ctx, policy); err != nil {
		return fmt.Errorf("Bucket(%q).IAM().SetPolicy: %v", bucketName, err)
	}
	fmt.Fprintf(w, "Bucket %v is now publicly readable\n", bucketName)
	return nil
}

Java

For more information, see the Cloud Storage Java API reference documentation.

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import com.google.cloud.Identity;
import com.google.cloud.Policy;
import com.google.cloud.storage.Storage;
import com.google.cloud.storage.StorageOptions;
import com.google.cloud.storage.StorageRoles;

public class MakeBucketPublic {
  public static void makeBucketPublic(String projectId, String bucketName) {
    // The ID of your GCP project
    // String projectId = "your-project-id";

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

    Storage storage = StorageOptions.newBuilder().setProjectId(projectId).build().getService();
    Policy originalPolicy = storage.getIamPolicy(bucketName);
    storage.setIamPolicy(
        bucketName,
        originalPolicy
            .toBuilder()
            .addIdentity(StorageRoles.objectViewer(), Identity.allUsers()) // All users can view
            .build());

    System.out.println("Bucket " + bucketName + " is now publicly readable");
  }
}

Node.js

For more information, see the Cloud Storage Node.js API reference documentation.

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

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

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

async function makeBucketPublic() {
  await storage.bucket(bucketName).makePublic();

  console.log(`Bucket ${bucketName} is now publicly readable`);
}

makeBucketPublic().catch(console.error);

Python

For more information, see the Cloud Storage Python API reference documentation.

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from google.cloud import storage


def set_bucket_public_iam(bucket_name):
    """Set a public IAM Policy to bucket"""
    # bucket_name = "your-bucket-name"

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

    policy = bucket.get_iam_policy(requested_policy_version=3)
    policy.bindings.append(
        {"role": "roles/storage.objectViewer", "members": {"allUsers"}}
    )

    bucket.set_iam_policy(policy)

    print("Bucket {} is now publicly readable".format(bucket.name))

Ruby

For more information, see the Cloud Storage Ruby API reference documentation.

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def set_bucket_public_iam bucket_name:
  # The ID of your GCS bucket
  # bucket_name = "your-unique-bucket-name"

  require "google/cloud/storage"

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

  bucket.policy do |p|
    p.add "roles/storage.objectViewer", "allUsers"
  end

  puts "Bucket #{bucket_name} is now publicly readable"
end

REST APIs

JSON API

1. Get an authorization access token from the OAuth 2.0 Playground. Configure the playground to use your own OAuth credentials.

2. Create a .json file that contains the following information:

   {
     "bindings":[
       {
         "role": "roles/storage.objectViewer",
         "members":["allUsers"]
       }
     ]
   }

3. Use cURL to call the JSON API with a PUT Bucket request:

   curl -X PUT --data-binary @JSON_FILE_NAME.json \
     -H "Authorization: Bearer OAUTH2_TOKEN" \
     -H "Content-Type: application/json" \
     "https://storage.googleapis.com/storage/v1/b/BUCKET_NAME/iam"

   Where:

   • JSON_FILE_NAME is the name of the file you created in Step 2.
   • OAUTH2_TOKEN is the access token you created in Step 1.
   • BUCKET_NAME is the name of the bucket whose objects you want to make public. For example, my-static-assets.

XML API

Making all objects in a bucket publicly readable is not supported by the XML API. Use gsutil or the JSON API instead, or set ACLs for each individual object.

Note: roles/storage.objectViewer includes permission to list the objects in the bucket. If you don't want to grant listing publicly, use roles/storage.legacyObjectReader.

To make individual objects in your bucket publicly accessible, you need to switch your bucket's Access control mode to Fine-grained. Generally, making all files in your bucket publicly accessible is easier and faster.

Visitors receive a http 403 response code when requesting the URL for a non-public or non-existent file. See the next section for information on how to add an error page that uses a http 404 response code.

Recommended: Assigning specialty pages

You can assign an index page suffix, which is controlled by the MainPageSuffix property, and a custom error page, which is controlled by the NotFoundPage property. Assigning either is optional, but without an index page, nothing is served when users access your top-level site, for example, https://www.example.com. For more information about the MainPageSuffix and NotFoundPage properties, see Specialty pages.

In the following sample, the MainPageSuffix is set to index.html and NotFoundPage is set to 404.html:

Console

1. In the Google Cloud Console, go to the Cloud Storage Browser page.
   

   Go to Browser

2. In the list of buckets, find the bucket you created.

3. Click the Bucket overflow menu () associated with the bucket and select Edit website configuration.

4. In the website configuration dialog, specify the main page and error page.

5. Click Save.

Note: View, change, or remove these settings from the Edit website configuration menu.

To learn how to get detailed error information about failed operations in the Cloud Storage browser, see Troubleshooting.

gsutil

Use the gsutil web set command to set the MainPageSuffix property with the -m flag and the NotFoundPage with the -e flag:

gsutil web set -m index.html -e 404.html gs://my-static-assets

If successful, the command returns:

Setting website config on gs://my-static-assets/...

Note: Change or remove these settings with additional gsutil web set commands and view these settings with the gsutil web get command.

Code samples

C++

For more information, see the Cloud Storage C++ API reference documentation.

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namespace gcs = google::cloud::storage;
using ::google::cloud::StatusOr;
[](gcs::Client client, std::string const& bucket_name,
   std::string const& main_page_suffix, std::string const& not_found_page) {
  StatusOr<gcs::BucketMetadata> original =
      client.GetBucketMetadata(bucket_name);

  if (!original) throw std::runtime_error(original.status().message());
  StatusOr<gcs::BucketMetadata> patched_metadata = client.PatchBucket(
      bucket_name,
      gcs::BucketMetadataPatchBuilder().SetWebsite(
          gcs::BucketWebsite{main_page_suffix, not_found_page}),
      gcs::IfMetagenerationMatch(original->metageneration()));

  if (!patched_metadata) {
    throw std::runtime_error(patched_metadata.status().message());
  }

  if (!patched_metadata->has_website()) {
    std::cout << "Static website configuration is not set for bucket "
              << patched_metadata->name() << "\n";
    return;
  }

  std::cout << "Static website configuration successfully set for bucket "
            << patched_metadata->name() << "\nNew main page suffix is: "
            << patched_metadata->website().main_page_suffix
            << "\nNew not found page is: "
            << patched_metadata->website().not_found_page << "\n";
}

Go

For more information, see the Cloud Storage Go API reference documentation.

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

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

// setBucketWebsiteInfo sets website configuration on a bucket.
func setBucketWebsiteInfo(w io.Writer, bucketName, indexPage, notFoundPage string) error {
	// bucketName := "www.example.com"
	// indexPage := "index.html"
	// notFoundPage := "404.html"
	ctx := context.Background()
	client, err := storage.NewClient(ctx)
	if err != nil {
		return fmt.Errorf("storage.NewClient: %v", err)
	}
	defer client.Close()

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

	bucket := client.Bucket(bucketName)
	bucketAttrsToUpdate := storage.BucketAttrsToUpdate{
		Website: &storage.BucketWebsite{
			MainPageSuffix: indexPage,
			NotFoundPage:   notFoundPage,
		},
	}
	if _, err := bucket.Update(ctx, bucketAttrsToUpdate); err != nil {
		return fmt.Errorf("Bucket(%q).Update: %v", bucketName, err)
	}
	fmt.Fprintf(w, "Static website bucket %v is set up to use %v as the index page and %v as the 404 page\n", bucketName, indexPage, notFoundPage)
	return nil
}

Java

For more information, see the Cloud Storage Java API reference documentation.

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

public class SetBucketWebsiteInfo {
  public static void setBucketWesbiteInfo(
      String projectId, String bucketName, String indexPage, String notFoundPage) {
    // The ID of your GCP project
    // String projectId = "your-project-id";

    // The ID of your static website bucket
    // String bucketName = "www.example.com";

    // The index page for a static website bucket
    // String indexPage = "index.html";

    // The 404 page for a static website bucket
    // String notFoundPage = "404.html";

    Storage storage = StorageOptions.newBuilder().setProjectId(projectId).build().getService();
    Bucket bucket = storage.get(bucketName);
    bucket.toBuilder().setIndexPage(indexPage).setNotFoundPage(notFoundPage).build().update();

    System.out.println(
        "Static website bucket "
            + bucketName
            + " is set up to use "
            + indexPage
            + " as the index page and "
            + notFoundPage
            + " as the 404 page");
  }
}

Node.js

For more information, see the Cloud Storage Node.js API reference documentation.

View on GitHub Feedback

/**
 * 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 main page
// const mainPageSuffix = 'http://example.com';

// The Name of a 404 page
// const notFoundPage = 'http://example.com/404.html';

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

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

async function addBucketWebsiteConfiguration() {
  await storage.bucket(bucketName).setMetadata({
    website: {
      mainPageSuffix,
      notFoundPage,
    },
  });

  console.log(
    `Static website bucket ${bucketName} is set up to use ${mainPageSuffix} as the index page and ${notFoundPage} as the 404 page`
  );
}

addBucketWebsiteConfiguration().catch(console.error);

Python

For more information, see the Cloud Storage Python API reference documentation.

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from google.cloud import storage


def define_bucket_website_configuration(bucket_name, main_page_suffix, not_found_page):
    """Configure website-related properties of bucket"""
    # bucket_name = "your-bucket-name"
    # main_page_suffix = "index.html"
    # not_found_page = "404.html"

    storage_client = storage.Client()

    bucket = storage_client.get_bucket(bucket_name)
    bucket.configure_website(main_page_suffix, not_found_page)
    bucket.patch()

    print(
        "Static website bucket {} is set up to use {} as the index page and {} as the 404 page".format(
            bucket.name, main_page_suffix, not_found_page
        )
    )
    return bucket

Ruby

For more information, see the Cloud Storage Ruby API reference documentation.

View on GitHub Feedback

def define_bucket_website_configuration bucket_name:, main_page_suffix:, not_found_page:
  # The ID of your static website bucket
  # bucket_name = "www.example.com"

  # The index page for a static website bucket
  # main_page_suffix = "index.html"

  # The 404 page for a static website bucket
  # not_found_page = "404.html"

  require "google/cloud/storage"

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

  bucket.update do |b|
    b.website_main = main_page_suffix
    b.website_404 = not_found_page
  end

  puts "Static website bucket #{bucket_name} is set up to use #{main_page_suffix} as the index page and " \
       "#{not_found_page} as the 404 page"
end

REST APIs

JSON API

1. Get an authorization access token from the OAuth 2.0 Playground. Configure the playground to use your own OAuth credentials.

2. Create a .json file that sets the mainPageSuffix and notFoundPage properties in a website object to the desired pages:

   {
     "website":{
       "mainPageSuffix": "index.html",
       "notFoundPage": "404.html"
     }
   }

3. Use cURL to call the JSON API with a PATCH Bucket request. For the bucket my-static-assets:

   curl -X PATCH --data-binary @web-config.json \
     -H "Authorization: Bearer ya29.AHES6ZRVmB7fkLtd1XTmq6mo0S1wqZZi3-Lh_s-6Uw7p8vtgSwg" \
     -H "Content-Type: application/json" \
     "https://storage.googleapis.com/storage/v1/b/my-static-assets"

XML API

1. Get an authorization access token from the OAuth 2.0 Playground. Configure the playground to use your own OAuth credentials.

2. Create a .xml file that sets the MainPageSuffix and NotFoundPage elements in a WebsiteConfiguration element to the desired pages:

   <WebsiteConfiguration>
     <MainPageSuffix>index.html</MainPageSuffix>
     <NotFoundPage>404.html</NotFoundPage>
   </WebsiteConfiguration>

3. Use cURL to call the XML API with a PUT Bucket request and websiteConfig query string parameter. For my-static-assets:

   curl -X PUT --data-binary @web-config.xml \
     -H "Authorization: Bearer ya29.AHES6ZRVmB7fkLtd1XTmq6mo0S1wqZZi3-Lh_s-6Uw7p8vtgSwg" \
     https://storage.googleapis.com/my-static-assets?websiteConfig

Note: Change or remove these settings with additional PUT requests and view these settings with a GET request.

Setting up your load balancer and SSL certificate

Cloud Storage doesn't support custom domains with HTTPS on its own, so you also need to set up an SSL certificate attached to an HTTPS load balancer to serve your website through HTTPS. This section shows you how to add your bucket to a load balancer's backend and how to add a new Google-managed SSL certificate to the load balancer's front end.

1. Go to the Load balancing page in the Google Cloud Console.
   Go to the Load balancing page
2. Under HTTP(S) load balancing, click Start configuration.
3. Select From Internet to my VMs and click Continue.
4. Give your load balancer a Name, such as example-lb.

Configuring the backend

1. Click Backend configuration.
2. In the Create or select backend services & backend buckets dropdown, go to the Backend buckets sub-menu, and click the Create a backend bucket option.
3. Choose a Name for the backend bucket, such as example-bucket.
4. Click Browse under Cloud Storage bucket.
5. Select the my-static-assets bucket and click Select.
6. If you want to use Cloud CDN, select the checkbox for Enable Cloud CDN. Leave the Cache mode selection as Cache static content. Note that Cloud CDN may incur additional costs.
7. Click Create.

Configuring host rules and path matchers

Host rules and path matchers are configuration components of an external HTTP(S) load balancer's URL map.

1. Click Host and path rules.
2. Leave Mode at the default Simple host and path rule for the backend bucket example-bucket, which you created earlier.

Configuring the frontend

This section shows you how to configure the HTTPS protocol and create an SSL certificate. You can also select an existing certificate or upload a self-managed SSL certificate.

1. Click Frontend configuration.

2. Configure the values for the following fields:

   • Protocol: HTTPS
   • Network Service Tier: Premium
   • IP version: IPv4. If you prefer IPv6, see IPv6 termination for additional information.

3. For the IP address field:

   1. In the dropdown, click Create IP address.
   2. In the Reserve a new static IP address pop-up, enter example-ip for the Name of the IP address.
   3. Click Reserve.
   Note: Reserving a new static IP address incurs additional costs if the IP address is not attached to a forwarding rule. To avoid such costs, delete the static IP address when you delete the associated load balancer.

4. For Port, select 443.

5. For the Certificate field, select Create a new certificate. The certificate creation form appears in a panel. Configure the following:

   • Name: example-ssl
   • Create mode: Create Google-managed certificate
   • Domains: www.example.com. If you want to serve your content through additional domains such as the root domain example.com, press Enter to add them on additional lines. Each certificate has a limit of 100 domains.

6. Click Create.

7. Click Done.

Reviewing the configuration

1. Click Review and finalize.
2. Review the Backend configuration, Host and path rules, and Frontend configuration.
3. Click Create.

You may need to wait a few minutes for the load balancer to be created.

Connecting your domain to your load balancer

After the load balancer is created, click the name of your load balancer: example-lb. Note the IP address associated with the load balancer: for example, 30.90.80.100. To point your domain to your load balancer, create an A record using your domain registration service. If you added multiple domains to your SSL certificate, you must add an A record for each one, all pointing to the load balancer's IP address. For example, to create A records for www.example.com and example.com:

NAME                  TYPE     DATA
www                   A        30.90.80.100
@                     A        30.90.80.100

If you are using Google Domains, see the Google Domains Help page for more information.

Recommended: Monitoring the SSL certificate status

It might take up to 60-90 minutes for Google Cloud to provision the certificate and make the site available through the load balancer. To monitor the status of your certificate:

Console

1. Go to the Load balancing page in the Google Cloud Console.
   Go to the Load balancing page
2. Click on the name of your load balancer: example-lb.
3. Click on the name of the SSL certificate associated with the load balancer: example-ssl.
4. The Status and Domain status rows show the certificate status. Both must be active in order for the certificate to be valid for your website.

gcloud

1. To check the certificate status, run the following command:

   gcloud beta compute ssl-certificates describe CERTIFICATE_NAME \
     --global \
     --format="get(name,managed.status)"
   

2. To check the domain status, run the following command:

   gcloud beta compute ssl-certificates describe CERTIFICATE_NAME \
     --global \
     --format="get(managed.domainStatus)"
   

See Troubleshooting SSL certificates for more information about certificate status.

Testing the website

Once the SSL certificate is active, verify that content is served from the bucket by going to https://www.example.com/test.html, where test.html is an object stored in the bucket that you're using as the backend. If you set the MainPageSuffix property, https://www.example.com goes to index.html.

Note: To redirect traffic from HTTP to HTTPS, you need to set up an additional HTTP load balancer with a redirect setting in the URL map. For instructions, see Setting up HTTP-to-HTTPS redirect for external HTTP(S) load balancers.

Cleaning up

After you finish the tutorial, you can clean up the resources that you created so that they stop using quota and incurring charges. The following sections describe how to delete or turn off these resources.

Deleting the project

The easiest way to eliminate billing is to delete the project that you created for the tutorial.

To delete the project:

Caution: Deleting a project has the following effects:

• Everything in the project is deleted. If you used an existing project for this tutorial, when you delete it, you also delete any other work you've done in the project.
• Custom project IDs are lost. When you created this project, you might have created a custom project ID that you want to use in the future. To preserve the URLs that use the project ID, such as an appspot.com URL, delete selected resources inside the project instead of deleting the whole project.

If you plan to explore multiple tutorials and quickstarts, reusing projects can help you avoid exceeding project quota limits.

1. In the Cloud Console, go to the Manage resources page.

   Go to Manage resources

2. In the project list, select the project that you want to delete, and then click Delete.
3. In the dialog, type the project ID, and then click Shut down to delete the project.

Deleting the load balancer and bucket

If you don't want to delete the entire project, delete the load balancer and bucket that you created for the tutorial:

1. Go to the Load balancing page in the Google Cloud Console.
   Go to the Load balancing page
2. Select the checkbox next to example-lb.
3. Click Delete.
4. (Optional) Select the checkbox next to the resources you want to delete along with the load balancer, such as the my-static-assets bucket or the example-ssl SSL certificate.
5. Click Delete load balancer or Delete load balancer and the selected resources.

Note: If you only want to delete the bucket you created, follow the instructions at Deleting buckets.

Releasing a reserved IP address

To delete the reserved IP address you used for the tutorial:

1. In the Cloud Console, go to the External IP addresses page.

   Go to External IP addresses

2. Select the checkboxes next to example-ip.

3. Click Release static address.

4. In the confirmation window, click Delete.

What's next

• Learn how to serve your static website over HTTP.
• See examples and tips for using buckets to host a static website.
• Visit the troubleshooting section for hosting a static website.
• Learn about hosting static assets for a dynamic website.
• Learn about other Google Cloud web serving solutions.
• Try other Google Cloud tutorials that use Cloud Storage.

Try it for yourself

If you're new to Google Cloud, create an account to evaluate how Cloud Storage performs in real-world scenarios. New customers also get $300 in free credits to run, test, and deploy workloads.

Try Cloud Storage free