NAME
    gcloud spanner databases add-iam-policy-binding - add IAM policy binding to
        a Cloud Spanner database

SYNOPSIS
    gcloud spanner databases add-iam-policy-binding
        (DATABASE : --instance=INSTANCE) --member=PRINCIPAL --role=ROLE
        [GCLOUD_WIDE_FLAG ...]

DESCRIPTION
    Add an IAM policy binding to a Cloud Spanner database.

EXAMPLES
    To add an IAM policy binding for the role of 'roles/editor' for the user
    'test-user@gmail.com' with database 'my-database' and instance
    'my-instance', run:

        $ gcloud spanner databases add-iam-policy-binding my-database \
            --instance='my-instance' --member='user:test-user@gmail.com' \
            --role='roles/editor'

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

POSITIONAL ARGUMENTS
     Database resource - The Cloud Spanner database to which to add the IAM
     policy binding. The arguments in this group can be used to specify the
     attributes of this 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 database 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.

       DATABASE
          ID of the database or fully qualified identifier for the database. To
          set the database attribute:
          ▸ provide the argument database on the command line.

          This positional must be specified if any of the other arguments in
          this group are specified.

       --instance=INSTANCE
          The name of the Cloud Spanner instance.

          To set the instance attribute:
          ▸ provide the argument database on the command line with a fully
            specified name;
          ▸ provide the argument --instance on the command line;
          ▸ set the property spanner/instance.

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 spanner/v1 API. The full documentation for this API
    can be found at: https://cloud.google.com/spanner/

NOTES
    These variants are also available:

        $ gcloud alpha spanner databases add-iam-policy-binding

        $ gcloud beta spanner databases add-iam-policy-binding