POST /projects/{project}/regions/{region}/instanceGroupManagers/{instanceGroupManager}/applyUpdatesToInstances

Flag to update all instances instead of specified list of "instances". If the flag is set to true then the instances may not be specified in the request.

The minimal action that you want to perform on each instance during the update:

 - REPLACE: At minimum, delete the instance and create it
 again. 

• RESTART: Stop the instance and start it again.
• REFRESH: Do not stop the instance and limit disruption as much as possible.
• NONE: Do not disrupt the instance at all.

By default, the minimum action is NONE. If your update requires a more disruptive action than you set with this flag, the necessary action is performed to execute the update.

The most disruptive action that you want to perform on each instance during the update:

 - REPLACE: Delete the instance and create it again.
 - RESTART: Stop the instance and start it again.
 - REFRESH: Do not stop the instance and limit disruption
 as much as possible. 

• NONE: Do not disrupt the instance at all.

By default, the most disruptive allowed action is REPLACE. If your update requires a more disruptive action than you set with this flag, the update request will fail.

[Output Only] The value of requestId if you provided it in the request. Not present otherwise.

[Deprecated] This field is deprecated.

[Output Only] A textual description of the operation, which is set when the operation is created.

[Output Only] The time that this operation was completed. This value is inRFC3339 text format.

[Output Only] If the operation fails, this field contains the HTTP error message that was returned, such as NOT FOUND.

[Output Only] If the operation fails, this field contains the HTTP error status code that was returned. For example, a 404 means the resource was not found.

[Output Only] The unique identifier for the operation. This identifier is defined by the server.

[Output Only] The time that this operation was requested. This value is inRFC3339 text format.

Output only. [Output Only] Type of the resource. Always compute#operation for Operation resources.

[Output Only] Name of the operation.

Output only. [Output Only] An ID that represents a group of operations, such as when a group of operations results from a bulkInsert API request.

[Output Only] The type of operation, such as insert, update, or delete, and so on.

[Output Only] An optional progress indicator that ranges from 0 to 100. There is no requirement that this be linear or support any granularity of operations. This should not be used to guess when the operation will be complete. This number should monotonically increase as the operation progresses.

[Output Only] The URL of the region where the operation resides. Only applicable when performing regional operations.

[Output Only] Server-defined URL for the resource.

[Output Only] The time that this operation was started by the server. This value is inRFC3339 text format.

[Output Only] The status of the operation, which can be one of the following: PENDING, RUNNING, or DONE.

[Output Only] An optional textual description of the current status of the operation.

[Output Only] The unique target ID, which identifies a specific incarnation of the target resource.

[Output Only] The URL of the resource that the operation modifies. For operations related to creating a snapshot, this points to the disk that the snapshot was created from.

[Output Only] User who requested the operation, for example: user@example.com or alice_smith_identifier (global/workforcePools/example-com-us-employees).

[Output Only] The URL of the zone where the operation resides. Only applicable when performing per-zone operations.