gcloud beta compute images set-iam-policy

NAME: gcloud beta compute images set-iam-policy - set the IAM policy for a Compute Engine image
SYNOPSIS: gcloud beta compute images set-iam-policy IMAGE POLICY_FILE [GCLOUD_WIDE_FLAG …]
DESCRIPTION: (BETA) Sets the IAM policy for the given image as defined in a JSON or YAML file.
EXAMPLES: The following command will read an IAM policy defined in a JSON file 'policy.json' and set it for the image my-image:
gcloud beta compute images set-iam-policy my-image policy.json

See https://cloud.google.com/iam/docs/managing-policies for details of the policy file format and contents.
POSITIONAL ARGUMENTS: Image resource - The image to set IAM policy for. 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 image 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.

IMAGE

ID of the image or fully qualified identifier for the image.
To set the image attribute:

provide the argument image on the command line.

POLICY_FILE

Path to a local JSON or YAML formatted file containing a valid policy.
The output of the get-iam-policy command is a valid file, as is any JSON or YAML file conforming to the structure of a Policy.
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/beta API. The full documentation for this API can be found at: https://cloud.google.com/compute/
NOTES: This command is currently in beta and might change without notice. These variants are also available:
gcloud compute images set-iam-policy

gcloud alpha compute images set-iam-policy