NAME
    gcloud bigtable backups add-iam-policy-binding - add an IAM policy binding
        to a Cloud Bigtable Backup

SYNOPSIS
    gcloud bigtable backups add-iam-policy-binding
        (BACKUP : --cluster=CLUSTER --instance=INSTANCE) --member=PRINCIPAL
        --role=ROLE
        [--condition=[KEY=VALUE,...] | --condition-from-file=PATH_TO_FILE]
        [GCLOUD_WIDE_FLAG ...]

DESCRIPTION
    Add an IAM policy binding to a Cloud Bigtable Backup. One binding consists
    of a member, a role, and an optional condition.

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

        $ gcloud bigtable backups add-iam-policy-binding my-backup \
            --instance=`my-instance` --cluster=`my-cluster` \
            --member=`user:test-user@gmail.com` --role=`roles/editor`

    To add an IAM policy binding which expires at the end of the year 2020 for
    the role of roles/bigtable.admin and the user test-user@gmail.com with
    backup my-backup in instance my-instance and cluster my-cluster, run:

        $ gcloud bigtable backups add-iam-policy-binding my-backup \
            --instance=`my-instance` --cluster=`my-cluster` \
            --member=`user:test-user@gmail.com` \
            --role=`roles/bigtable.admin` \
            --condition=`expression=request.time < \
            timestamp("2021-01-01T00:00:00Z"),title=expires_end_of_2020,\
        description=Expires at midnight on 2020-12-31`

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

POSITIONAL ARGUMENTS
     Backup resource - Cloud Bigtable Backup to add the IAM policy binding to.
     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 backup on the command line with a fully
        specified name;
      ◆ provide the argument --project on the command line;
      ◆ set the property core/project.

     This must be specified.

       BACKUP
          ID of the backup or fully qualified identifier for the backup.

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

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

       --cluster=CLUSTER
          Name of the Bigtable cluster.

          To set the cluster attribute:
          ▸ provide the argument backup on the command line with a fully
            specified name;
          ▸ provide the argument --cluster on the command line.

       --instance=INSTANCE
          Name of the Bigtable instance.

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

OPTIONAL FLAGS
     At most one of these can be specified:

       --condition=[KEY=VALUE,...]
          A condition to include in the binding. When the condition is
          explicitly specified as None (--condition=None), a binding without a
          condition is added. When the condition is specified and is not None,
          --role cannot be a basic role. Basic roles are roles/editor,
          roles/owner, and roles/viewer. For more on conditions, refer to the
          conditions overview guide:
          https://cloud.google.com/iam/docs/conditions-overview

          When using the --condition flag, include the following key-value
          pairs:

           expression
              (Required) Condition expression that evaluates to True or False.
              This uses a subset of Common Expression Language syntax.

              If the condition expression includes a comma, use a different
              delimiter to separate the key-value pairs. Specify the delimiter
              before listing the key-value pairs. For example, to specify a
              colon (:) as the delimiter, do the following:
              --condition=^:^title=TITLE:expression=EXPRESSION. For more
              information, see
              https://cloud.google.com/sdk/gcloud/reference/topic/escaping.

           title
              (Required) A short string describing the purpose of the
              expression.

           description
              (Optional) Additional description for the expression.

       --condition-from-file=PATH_TO_FILE
          Path to a local JSON or YAML file that defines the condition. To see
          available fields, see the help for --condition. Use a full or
          relative path to a local file containing the value of condition.

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 bigtableadmin/v2 API. The full documentation for this
    API can be found at: https://cloud.google.com/bigtable/

NOTES
    These variants are also available:

        $ gcloud alpha bigtable backups add-iam-policy-binding

        $ gcloud beta bigtable backups add-iam-policy-binding

