gcp.compute.instance_group_manager.resize

Set the target size of a GCE managed instance group (native runner scale operation).

Overview

Property	Value
Workflow type	Atomic
Library	Base-gcp
Version	1.0

Input Schema

Field	Type	Required	Default	Description
connection_uuid	uuid	Yes	—	GCP CloudConnection UUID.
project_id	string	No	—	GCP project override; defaults to the connection project.
instance_group_manager	string	Yes	—	Name of the managed instance group to resize.
region	string	Yes	—	GCP zone or region hosting the managed instance group; kept as region to match existing LTIP compute primitives.
size	integer	Yes	—	Target number of instances for the managed instance group.
request_id	string	No	—	Optional provider request id for retry safety.

Output Schema

Field	Type	Required	Default	Description
connection_uuid	uuid	No	—	GCP CloudConnection UUID echoed from input.
project_id	string	No	—	Effective GCP project.
authenticated_project_id	string	No	—	Project resolved by credential validation.
auth_validation	boolean	No	—	True when credential validation succeeded.
default_service_account	string	No	—	Default compute service account when resolved.
instance_group_manager	string	No	—	Name of the managed instance group echoed from input.
region	string	No	—	GCP zone or region hosting the managed instance group.
size	integer	No	—	Requested target number of instances echoed from input.
request_id	string	No	—	Optional provider request id echoed from input.
target_size	integer	No	—	Target size the managed instance group was set to.
provider_resource_id	string	No	—	projects/{project}/zones
operation_name	string	No	—	Compute Engine long-running operation name.
operation_status	string	No	—	Initial provider operation status.
operation	json	No	—	Sanitized provider operation response.
resize_request	json	No	—	Sanitized resize request sent to Compute Engine.
failure_reason	string	No	—	Human-readable failure reason.
failure_type	string	No	—	Engine exception class.
failed_step	string	No	—	Failed logical step.
failed_layer	json	No	—	Engine failed layer.
failed_at_state	string	No	—	State where failure occurred.
error	string	No	—	Error message.
error_type	string	No	—	Error class.
failed_at	string	No	—	ISO failure timestamp.

States

State	Initial	Terminal	Success	Auto-advance	Description
pending	Yes	No	—	execute	—
completed	No	Yes	Yes	—	—
failed	No	Yes	No	—	—

State Diagram

Transitions

From	Action	To	Description
pending	execute	completed	—
* (any state)	fail	failed	—

API Usage

POST /api/workflows/start
Content-Type: application/json

{
  "workflow_type": "gcp.compute.instance_group_manager.resize",
  "initial_data": {
    "connection_uuid": "value",
    "instance_group_manager": "value",
    "region": "value",
    "size": 123
  }
}