runner.execution-launch-azure-vmss-generic

Launch one generic command execution on an Azure VM Scale Set.

Overview

Property	Value
Workflow type	Linear
Library	App-runners-azure
Version	1.0

Input Schema

Field	Type	Required	Default	Description
runner_group_uuid	uuid	No	—	Runner group UUID; resolved from the execution when omitted.
organization_uuid	uuid	No	—	Organization UUID; resolved from the execution when omitted.
runner_execution_uuid	uuid	No	—	Existing execution UUID to reuse; created when omitted.
command	string	Yes	—	Command to run on the instance.
environment	json	No	—	Environment variables for the execution. Vaulted by the engine (persisted state_data holds a [VAULT:...] reference). Do not pass long-lived credentials here — bind them by reference through secret_environment instead.

Output Schema

Field	Type	Required	Default	Description
runner_execution_uuid	uuid	No	—	RunnerExecution echoed from input.
runner_group_uuid	uuid	No	—	Runner group UUID resolved for the execution.
organization_uuid	uuid	No	—	Organization UUID resolved for the execution.
vmss_name	string	No	—	Scale set backing the runner group.
resource_group	string	No	—	Resource group holding the scale set.
instance_ref	string	No	—	Instance reference within the scale set that runs this execution.
provider_execution_ref	string	No	—	Provider-side reference for the launched execution.
completed_at	string	No	—	ISO timestamp when the action finalised.
failed_at	string	No	—	ISO timestamp when the action failed.
failure_reason	string	No	—	Populated only when the workflow ends in FAILED.
failure_type	string	No	—	Engine exception class.
failed_action	string	No	—	Failed transition action.
failed_at_state	string	No	—	State where failure occurred.
failed_step	string	No	—	Failed logical step.
failed_layer	json	No	—	Failed DAG layer if the engine supplies one.
error	string	No	—	Error message.
error_type	string	No	—	Error class.

States

State	Initial	Terminal	Success	Auto-advance	Description
initiated	Yes	No	—	prepare	—
launching_execution	No	No	—	complete	—
preparing	No	No	—	launch_execution	—
completed	No	Yes	Yes	—	—
failed	No	Yes	No	—	—

State Diagram

Transitions

From	Action	To	Description
initiated	prepare	preparing	—
preparing	launch_execution	launching_execution	—
launching_execution	complete	completed	—
* (any state)	fail	failed	—

API Usage

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

{
  "workflow_type": "runner.execution-launch-azure-vmss-generic",
  "initial_data": {
    "command": "value"
  }
}