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runner.execution-launch ​
Launch one runner execution on ECS/Fargate
Launch a new ECS task for a Fargate-backed runner group.
Overview ​
| Property | Value |
|---|---|
| Workflow type | Linear |
| Library | App-runners |
| Version | 1.0 |
Input Schema ​
| Field | Type | Required | Default | Description |
|---|---|---|---|---|
runner_group_uuid | uuid | Yes | — | UUID of the RunnerGroup this action operates on, picked from the organization's list of runner groups. |
organization_uuid | uuid | Yes | — | UUID of the caller's organization, injected server-side from the authenticated request; scopes the operation to the correct tenant. |
execution_uuid | uuid | No | — | UUID of an existing RunnerExecution to reuse instead of creating a new one, picked from the group's executions. Optional — a new execution is created when absent. |
environment | dict | No | — | Environment variables to pass to container |
command | list | No | — | Optional command override for container |
runner_image | string | No | — | Optional custom container image for this execution (overrides runner_group config) |
github_workflow_run_ref | integer | No | — | GitHub workflow run reference — external GitHub identifier |
run_attempt | integer | No | — | GitHub run attempt number — used to build the claim-watch workflow ID for retries |
extra_tags | dict | No | — | Additional AWS resource tags to attach to the ECS task (e.g. AgentSessionUuid) |
Output Schema ​
| Field | Type | Required | Default | Description |
|---|---|---|---|---|
runner_group_uuid | uuid | No | — | UUID of the RunnerGroup this action operates on, picked from the organization's list of runner groups; echoed on output alongside terminal/error payloads. |
organization_uuid | uuid | No | — | UUID of the caller's organization, injected server-side from the authenticated request; scopes the operation to the correct tenant. Echoed on output alongside terminal/error payloads. |
runner_execution_uuid | uuid | No | — | UUID of the RunnerExecution this action operates on, picked from the organization's (optionally group-scoped) list of executions; echoed on output alongside terminal/error payloads. |
workflow_uuid | string | No | — | Engine workflow-run identifier (or, for GitHub-Actions-triggered flows, an external GitHub Actions run id) associated with this record; not a platform entity foreign key despite the name. No source is attached since there is no list/query workflow for an internal run id. |
status | string | No | — | — |
outcome | string | No | — | — |
initiated_at | string | No | — | — |
completed_at | string | No | — | — |
failed_at | string | No | — | — |
failure_reason | string | No | — | — |
error | string | No | — | — |
error_type | string | No | — | — |
actor_uuid | uuid | No | — | UUID of the user or service actor who triggered this action, injected server-side from the authenticated request when available; used for audit/attribution only. Optional — omitted for system or service-triggered actions with no human actor. |
reason | string | No | — | — |
workflow_run_uuid | string | No | — | Engine-stamped correlation/run id for this DAG execution (ADR-015/E1 plumbing), written into state_data by action_start; not a foreign key to any business entity. No source is attached since there is no list/query workflow for an internal run id. |
retry_count | integer | No | — | — |
retried_from | string | No | — | — |
failed_step | json | No | — | — |
failed_layer | json | No | — | — |
failed_at_state | json | No | — | — |
compensation_trigger | json | No | — | — |
comp_current_layer | json | No | — | — |
comp_queue | json | No | — | — |
comp_retry_count | json | No | — | — |
cluster_arn | string | No | — | — |
task_arn | string | No | — | — |
task_definition_arn | string | No | — | — |
log_group_name | string | No | — | — |
container_name | string | No | — | — |
runner_image | string | No | — | — |
needs_custom_image | boolean | No | — | — |
registration_token | string | No | — | — |
runner_name | string | No | — | — |
runtime_env | dict | No | — | — |
start_command | list | No | — | — |
claim_watch_workflow_uuid | string | No | — | Engine run id of the runner.execution-claim-watch workflow started for this launch, when a github_workflow_run_ref was provided. Internal engine correlation id, not a platform entity foreign key. |
last_status | string | No | — | — |
execution_uuid | uuid | No | — | UUID of an existing RunnerExecution to reuse instead of creating a new one, picked from the group's executions. Optional — a new execution is created when absent. |
command | list | No | — | — |
environment | dict | No | — | — |
run_attempt | integer | No | — | — |
extra_tags | dict | No | — | — |
github_workflow_run_ref | integer | No | — | — |
States ​
| State | Initial | Terminal | Success | Auto-advance | Description |
|---|---|---|---|---|---|
initiated | Yes | No | — | prepare | — |
building_start_command | No | No | — | launch_task | — |
getting_registration_token | No | No | — | build_start_command | — |
launching_task | No | No | — | complete | — |
preparing | No | No | — | get_registration_token | — |
completed | No | Yes | Yes | — | — |
failed | No | Yes | No | — | — |
State Diagram ​
Transitions ​
| From | Action | To | Description |
|---|---|---|---|
initiated | prepare | preparing | — |
preparing | get_registration_token | getting_registration_token | — |
getting_registration_token | build_start_command | building_start_command | — |
building_start_command | launch_task | launching_task | — |
launching_task | complete | completed | — |
* (any state) | fail | failed | — |
API Usage ​
bash
POST /api/workflows/start
Content-Type: application/json
{
"workflow_type": "runner.execution-launch",
"initial_data": {
"runner_group_uuid": "value",
"organization_uuid": "value"
}
}