NAME
    gcloud beta iap tcp dest-groups add-iam-policy-binding - add IAM policy
        binding to an IAP TCP Tunnel Destination Group resource

SYNOPSIS
    gcloud beta iap tcp dest-groups add-iam-policy-binding
        --dest-group=DEST_GROUP --member=PRINCIPAL --region=REGION --role=ROLE
        [--condition=[KEY=VALUE,...] | --condition-from-file=PATH_TO_FILE]
        [GCLOUD_WIDE_FLAG ...]

DESCRIPTION
    (BETA) Adds a policy binding to the IAM policy of an IAP TCP Tunnel
    Destination Group resource. One binding consists of a member, a role, and
    an optional condition.

EXAMPLES
    To add an IAM policy binding for the role of
    'roles/iap.tunnelResourceAccessor' for the user 'test-user@gmail.com' in
    the group 'my-group' located in the region 'us-west1', run:

        $ gcloud beta iap tcp dest-groups add-iam-policy-binding \
            --member='user:test-user@gmail.com' \
            --role='roles/iap.tunnelResourceAccessor' \
            --dest-group='my-group' --region='us-west1'

    To add an IAM policy binding for the role of
    'roles/iap.tunnelResourceAccessor' for all authenticated users in the group
    'my-group' located in the region 'us-west1', run:

        $ gcloud beta iap tcp dest-groups add-iam-policy-binding \
            --member='allAuthenticatedUsers' \
            --role='roles/iap.tunnelResourceAccessor' \
            --dest-group='my-group' --region='us-west1'

    To add an IAM policy binding which expires at the end of the year 2018 for
    the role of 'roles/iap.tunnelResourceAccessor' and the user
    'test-user@gmail.com' in the group 'my-group' located in the region
    'us-west1', run:

        $ gcloud beta iap tcp dest-groups add-iam-policy-binding \
            --member='user:test-user@gmail.com' \
            --role='roles/iap.tunnelResourceAccessor' \
            --condition='expression=request.time <
            timestamp("2019-01-01T00:00:00Z"),title=expires_end_of_2018,
            description=Expires at midnight on 2018-12-31' --dest-group='my-group' --region='us-west1'

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

REQUIRED FLAGS
     --dest-group=DEST_GROUP
        Name of the Destination Group.

     --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.

     --region=REGION
        Region of the Destination Group.

     --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.

NOTES
    This command is currently in beta and might change without notice. These
    variants are also available:

        $ gcloud iap tcp dest-groups add-iam-policy-binding

        $ gcloud alpha iap tcp dest-groups add-iam-policy-binding

