gcloud spanner instances get-iam-policy

NAME
gcloud spanner instances get-iam-policy - get the IAM policy for a Cloud Spanner instance
SYNOPSIS
gcloud spanner instances get-iam-policy [INSTANCE] [--filter=EXPRESSION] [--limit=LIMIT] [--page-size=PAGE_SIZE] [--sort-by=[FIELD,…]] [GCLOUD_WIDE_FLAG …]
DESCRIPTION
gcloud spanner instances get-iam-policy displays the IAM policy associated with a Cloud Spanner instance. If formatted as JSON, the output can be edited and used as a policy file for set-iam-policy. The output includes an "etag" field identifying the version emitted and allowing detection of concurrent policy updates; see $ {parent} set-iam-policy for additional details.
EXAMPLES
To print the IAM policy for a given Cloud Spanner instance, run: 
gcloud spanner instances get-iam-policy my-instance
POSITIONAL ARGUMENTS
Instance resource - The Cloud Spanner instance for which to display the IAM policy. 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 instance on the command line with a fully specified name;
  • set the property spanner/instance with a fully specified name;
  • provide the argument --project on the command line;
  • set the property core/project.
[INSTANCE]
ID of the instance or fully qualified identifier for the instance.

To set the instance attribute:

  • provide the argument instance on the command line;
  • set the property spanner/instance.
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: --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 spanner/v1 API. The full documentation for this API can be found at: https://cloud.google.com/spanner/
NOTES
These variants are also available: 
gcloud alpha spanner instances get-iam-policy
 
gcloud beta spanner instances get-iam-policy