NAME
    gcloud alpha compute backend-buckets add-iam-policy-binding - add an IAM
        policy binding to a Compute Engine backend bucket

SYNOPSIS
    gcloud alpha compute backend-buckets add-iam-policy-binding BACKEND_BUCKET
        --member=PRINCIPAL --role=ROLE [GCLOUD_WIDE_FLAG ...]

DESCRIPTION
    (ALPHA) Add an IAM policy binding to a Compute Engine backend bucket.

EXAMPLES
    To add an IAM policy binding for the role of
    'compute.loadBalancerServiceUser' for the user 'test-user@gmail.com' with
    backend bucket 'my-backend-bucket' run:

        $ gcloud alpha compute backend-buckets add-iam-policy-binding \
            my-backend-bucket --member='user:test-user@gmail.com' \
            --role='roles/compute.loadBalancerServiceUser'

    See https://cloud.google.com/iam/docs/managing-policies for details of
    policy role and member types.

POSITIONAL ARGUMENTS
     Backend bucket resource - The backend bucket for which to add the IAM
     policy to. This represents a Cloud resource. (NOTE) Some attributes are
     not given arguments in this group but can be set in other ways.

     To set the project attribute:
      ◆ provide the argument backend_bucket on the command line with a fully
        specified name;
      ◆ set the property core/project;
      ◆ provide the argument --project on the command line.

     This must be specified.

       BACKEND_BUCKET
          ID of the backend bucket or fully qualified identifier for the
          backend bucket.

          To set the backend_bucket attribute:
          ▸ provide the argument backend_bucket on the command line.

REQUIRED FLAGS
     --member=PRINCIPAL
        The principal to add the binding for. Should be of the form
        user|group|serviceAccount:email or domain:domain.

        Examples: user:test-user@gmail.com, group:admins@example.com,
        serviceAccount:test123@example.domain.com, or
        domain:example.domain.com.

        Some resources also accept the following special values:
        ◆ allUsers - Special identifier that represents anyone who is on the
          internet, with or without a Google account.
        ◆ allAuthenticatedUsers - Special identifier that represents anyone
          who is authenticated with a Google account or a service account.

     --role=ROLE
        Role name to assign to the principal. The role name is the complete
        path of a predefined role, such as roles/logging.viewer, or the role ID
        for a custom role, such as
        organizations/{ORGANIZATION_ID}/roles/logging.viewer.

GCLOUD WIDE FLAGS
    These flags are available to all commands: --access-token-file, --account,
    --billing-project, --configuration, --flags-file, --flatten, --format,
    --help, --impersonate-service-account, --log-http, --project, --quiet,
    --trace-token, --user-output-enabled, --verbosity.

    Run $ gcloud help for details.

API REFERENCE
    This command uses the compute/alpha API. The full documentation for this
    API can be found at: https://cloud.google.com/compute/

NOTES
    This command is currently in alpha and might change without notice. If this
    command fails with API permission errors despite specifying the correct
    project, you might be trying to access an API with an invitation-only early
    access allowlist. This variant is also available:

        $ gcloud beta compute backend-buckets add-iam-policy-binding

