gcloud alpha compute machine-images get-iam-policy

NAME
gcloud alpha compute machine-images get-iam-policy - get the IAM policy for a Google Compute Engine machine image
SYNOPSIS
gcloud alpha compute machine-images get-iam-policy MACHINE_IMAGE [--filter=EXPRESSION] [--limit=LIMIT] [--page-size=PAGE_SIZE] [--sort-by=[FIELD,…]] [GCLOUD_WIDE_FLAG]
DESCRIPTION
(ALPHA) gcloud alpha compute machine-images get-iam-policy displays the IAM policy associated with a Compute Engine machine image in a project. If formatted as JSON, the output can be edited and used as a policy file for gcloud alpha compute machine-images get-iam-policy set-iam-policy. The output includes an etag field that identifies the version emitted and allows detection of concurrent policy updates; see $ gcloud alpha compute machine-images get-iam-policy set-iam-policy for additional details.
POSITIONAL ARGUMENTS
Machine image resource - The machine image to display the 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 [machine_image] 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.
MACHINE_IMAGE
ID of the machine image or fully qualified identifier for the machine image.
LIST COMMAND FLAGS
--filter=EXPRESSION
Apply a Boolean filter EXPRESSION to each resource item to be listed. If the expression evaluates True, then that item is listed. For more details and examples of filter expressions, run $ gcloud topic filters. This flag interacts with other flags that are applied in this order: --flatten, --sort-by, --filter, --limit.
--limit=LIMIT
Maximum number of resources to list. The default is unlimited. This flag interacts with other flags that are applied in this order: --flatten, --sort-by, --filter, --limit.
--page-size=PAGE_SIZE
Some services group resource list output into pages. This flag specifies the maximum number of resources per page. The default is determined by the service if it supports paging, otherwise it is unlimited (no paging). Paging may be applied before or after --filter and --limit depending on the service.
--sort-by=[FIELD,…]
Comma-separated list of resource field key names to sort by. The default order is ascending. Prefix a field with ``~´´ for descending order on that field. This flag interacts with other flags that are applied in this order: --flatten, --sort-by, --filter, --limit.
GCLOUD WIDE FLAGS
These flags are available to all commands: --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/alpha API. The full documentation for this API can be found at: https://developers.google.com/compute/docs/reference/latest/
EXAMPLES
To print the IAM policy for a given machine image, run:
gcloud alpha compute machine-images get-iam-policy my-machine-image
NOTES
This command is currently in ALPHA and may change without notice. If this command fails with API permission errors despite specifying the right project, you may be trying to access an API with an invitation-only early access whitelist. This variant is also available:
gcloud beta compute machine-images get-iam-policy