gcloud storage buckets set-iam-policy

NAME: gcloud storage buckets set-iam-policy - set the IAM policy for a bucket
SYNOPSIS: gcloud storage buckets set-iam-policy URLS [ URLS …] POLICY_FILE [ --continue-on-error , -c ] [ --etag = ETAG , -e ETAG ] [ GCLOUD_WIDE_FLAG … ]
DESCRIPTION: Set the IAM policy for a bucket. For more information, see Cloud Identity and Access Management .
EXAMPLES: To set the IAM policy in POLICY-FILE on BUCKET:
gcloud storage buckets set-iam-policy gs://BUCKET POLICY-FILE

To set the IAM policy in POLICY-FILE on all buckets beginning with "b":

gcloud storage buckets set-iam-policy gs://b* POLICY-FILE
POSITIONAL ARGUMENTS: URLS [ URLS …]

URLs for buckets to apply the IAM policy to. Can include wildcards.

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 .
FLAGS: --continue-on-error , -c

If any operations are unsuccessful, the command will exit with a non-zero exit status after completing the remaining operations. This flag takes effect only in sequential execution mode (i.e. processor and thread count are set to 1). Parallelism is default.

--etag = ETAG , -e ETAG

Custom etag to set on IAM policy. API will reject etags that do not match this value, making it useful as a precondition during concurrent operations.
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 variant is also available:
gcloud alpha storage buckets set-iam-policy

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gcloud storage buckets set-iam-policy