gcloud alpha spanner backups get-iam-policy - get the IAM policy for a Cloud Spanner backup

gcloud alpha spanner backups get-iam-policy(BACKUP :--instance=INSTANCE)[--filter=EXPRESSION][--limit=LIMIT][--page-size=PAGE_SIZE][--sort-by=[FIELD,…]][GCLOUD_WIDE_FLAG …]

Backup resource - The Cloud Spanner backup for which to display the IAM policy.The arguments in this group can be used to specify the attributes of thisresource. (NOTE) Some attributes are not given arguments in this group but canbe set in other ways.

To set theproject attribute:

• provide the argumentbackup on the command line with a fullyspecified name;
• provide the argument--project on the command line;
• set the propertycore/project.

This must be specified.

BACKUP

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

To set thebackup attribute:

• provide the argumentbackup on the command line.

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

--instance=INSTANCE

The name of the Cloud Spanner instance.To set theinstance attribute:

• provide the argumentbackup on the command line with a fullyspecified name;
• provide the argument--instance on the command line;
• set the propertyspanner/instance.

--filter=EXPRESSION

Apply a Boolean filterEXPRESSION to each resource itemto be listed. If the expression evaluatesTrue, then that item islisted. For more details and examples of filter expressions, run $gcloud topic filters. This flaginteracts with other flags that are applied in this order:--flatten,--sort-by,--filter,--limit.

--limit=LIMIT

Maximum number of resources to list. The default isunlimited. Thisflag 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 themaximum number of resources per page. The default is determined by the serviceif it supports paging, otherwise it isunlimited (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 orderis ascending. Prefix a field with ``~´´ for descending order on thatfield. This flag interacts with other flags that are applied in this order:--flatten,--sort-by,--filter,--limit.

Run$gcloud help for details.