gcloud compute networks subnets add-iam-policy-binding

NAME

gcloud compute networks subnets add-iam-policy-binding - add an IAM policy binding to a Compute Engine subnetwork

SYNOPSIS

gcloud compute networks subnets add-iam-policy-binding (SUBNETWORK : --region=REGION) --member=PRINCIPAL --role=ROLE [GCLOUD_WIDE_FLAG …]

DESCRIPTION

Add an IAM policy binding to a Compute Engine subnetwork.

EXAMPLES

To add an IAM policy binding for the role of 'roles/compute.securityAdmin' for the user 'test-user@gmail.com' with subnetwork 'my-subnet' and region 'REGION', run:

gcloud compute networks subnets add-iam-policy-binding my-subnet --region=REGION --member='user:test-user@gmail.com' --role='roles/compute.securityAdmin'

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

POSITIONAL ARGUMENTS

Subnetwork resource - The subnetwork for which to add the IAM policy 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 subnetwork 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.

SUBNETWORK

ID of the subnetwork or fully qualified identifier for the subnetwork.

To set the subnetwork attribute:

provide the argument subnetwork on the command line.

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

--region=REGION

The name of the Google Compute Engine region. To set the region attribute:

provide the argument subnetwork on the command line with a fully specified name;
provide the argument --region on the command line;
set the property compute/region.

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

NOTES

These variants are also available:

gcloud alpha compute networks subnets add-iam-policy-binding

gcloud beta compute networks subnets add-iam-policy-binding

gcloud preview compute networks subnets add-iam-policy-binding

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Last updated 2026-05-27 UTC.