gcloud alpha spanner databases remove-iam-policy-binding - remove IAM policy binding of a Cloud Spanner database

gcloud alpha spanner databases remove-iam-policy-binding(DATABASE :--instance=INSTANCE)--member=PRINCIPAL--role=ROLE[--all    |--condition=[KEY=VALUE,…]    |--condition-from-file=PATH_TO_FILE][GCLOUD_WIDE_FLAG …]

gcloudalphaspannerdatabasesremove-iam-policy-bindingmy-database--instance='my-instance'--member='user:test-user@gmail.com'--role='roles/editor'

To remove an IAM policy binding which expires at the end of the year 2018 forthe role of 'roles/spanner.databaseAdmin' and the user 'test-user@gmail.com'with database 'my-database' and instance 'my-instance', run:

gcloudalphaspannerdatabasesremove-iam-policy-bindingmy-database--instance='my-instance'--member='user:test-user@gmail.com'--role='roles/spanner.databaseAdmin'--condition='expression=request.time< timestamp("2019-01-01T00:00:00Z"),title=expires_end_of_2018,descrip\tion=Expires at midnight on 2018-12-31'

Seehttps://cloud.google.com/iam/docs/managing-policiesfor details of policy role and member types.

Database resource - The Cloud Spanner database to remove the IAM policy bindingfrom. 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 argumentdatabase on the command line with a fullyspecified name;
• provide the argument--project on the command line;
• set the propertycore/project.

This must be specified.

DATABASE

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

To set thedatabase attribute:

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

--member=PRINCIPAL

The principal to remove the binding for. Should be of the formuser|group|serviceAccount:email ordomain:domain.

Examples:user:test-user@gmail.com,group:admins@example.com,serviceAccount:test123@example.domain.com, ordomain:example.domain.com.

Deleted principals have an additionaldeleted: prefix and a?uid=UID suffix, whereUID isa unique identifier for the principal. Example:deleted:user:test-user@gmail.com?uid=123456789012345678901.

Some resources also accept the following special values:

• allUsers - Special identifier that represents anyone who is on theinternet, with or without a Google account.
• allAuthenticatedUsers - Special identifier that represents anyonewho is authenticated with a Google account or a service account.

--role=ROLE

The role to remove the principal from.

At most one of these can be specified:

--all

Remove all bindings with this role and principal, irrespective of anyconditions.

--condition=[KEY=VALUE,…]

The condition of the binding that you want to remove. When the condition isexplicitly specified asNone (--condition=None), abinding without a condition is removed. Otherwise, only a binding with acondition that exactly matches the specified condition (including the optionaldescription) is removed. For more on conditions, refer to the conditionsoverview guide:https://cloud.google.com/iam/docs/conditions-overview

When using the--condition flag, include the following key-valuepairs:

expression

(Required) Condition expression that evaluates to True or False. This uses asubset of Common Expression Language syntax.

If the condition expression includes a comma, use a different delimiter toseparate the key-value pairs. Specify the delimiter before listing the key-valuepairs. For example, to specify a colon (:) as the delimiter, do thefollowing:--condition=^:^title=TITLE:expression=EXPRESSION. Formore information, seehttps://cloud.google.com/sdk/gcloud/reference/topic/escaping.

title

(Required) A short string describing the purpose of the expression.

description

(Optional) Additional description for the expression.

--condition-from-file=PATH_TO_FILE

Path to a local JSON or YAML file that defines the condition. To see availablefields, see the help for--condition. Use a full or relative pathto a local file containing the value of condition.

Run$gcloud help for details.