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`POST /api/runners` — register a runner. System-admin auth. Returns the runner plus its plaintext bearer token, shown exactly once.

POST
/api/runners
curl --request POST \
  --url https://example.com/api/runners \
  --header 'Content-Type: application/json' \
  --data '{ "capabilities": {}, "name": "example", "token_ttl_secs": 1 }'

Request Bodyrequired

Section titled “Request Bodyrequired”
Media typeapplication/json
object
capabilities

Free-form advertised capabilities (images/labels/max_parallel/weight).

object
name
required
string
token_ttl_secs

ADR 0046 Phase 5 — optional static-token TTL (seconds). Absent ⇒ the token never expires (byte-identical default); a positive value sets a fail-closed expiry (clamped to the floor). For defence-in-depth on first-party runners; third-party edge runners should prefer the JWT enrollment path.

integer | null format: int64
Examplegenerated
{
  "capabilities": {},
  "name": "example",
  "token_ttl_secs": 1
}

Responses

Section titled “Responses”

200

Section titled “200”

Runner registered; plaintext token returned once

Media typeapplication/json

The result of registering a runner: the runner row plus the plaintext bearer token, which is returned once and never retrievable again.

object
capabilities
required

Free-form advertised capabilities (images/labels/max_parallel/weight/…). Typed as an open string-keyed map in the spec (not Object, which strips every key) so the FE binds the advertised capability map it reads (#541).

object
key
additional properties
created_at
required
string format: date-time
drain_state
required

ADR 0046 RUNG 2 — graceful drain: active | cordoned | draining. cordoned/draining runners receive no new work but keep heartbeating and finish in-flight assignments. Always populated from the row (this type is serialize-only), so no serde default is needed.

string
id
required
string format: uuid
last_heartbeat_at
string | null format: date-time
name
required
string
registered_at
required
string format: date-time
status
required
string
token
required
string
Examplegenerated
{
  "capabilities": {
    "additionalProperty": "example"
  },
  "created_at": "2026-04-15T12:00:00Z",
  "drain_state": "example",
  "id": "2489E9AD-2EE2-8E00-8EC9-32D5F69181C0",
  "last_heartbeat_at": "2026-04-15T12:00:00Z",
  "name": "example",
  "registered_at": "2026-04-15T12:00:00Z",
  "status": "example",
  "token": "example"
}

401

Section titled “401”

Authentication required

Media typeapplication/json

The canonical JSON body of every error response — the single source of truth the frontend binds to. Every AppError serializes as this exact shape, and the generated OpenAPI component ApiErrorBody (with its ErrorCode enum) is what the frontend error schema is generated from, so there is no hand-written error schema on either end.

object
code
required

Machine-readable, stable error code.

string
Allowed values: not_found unauthorized forbidden bad_request unprocessable precondition_failed conflict method_not_allowed rate_limited quota_exceeded database_error docker_error vault_error internal_error
details
One of:
null
error
required

Human-readable message (the server’s English text; the client may localize by code).

string
Example
{
  "code": "not_found"
}

403

Section titled “403”

Permission denied

Media typeapplication/json

The canonical JSON body of every error response — the single source of truth the frontend binds to. Every AppError serializes as this exact shape, and the generated OpenAPI component ApiErrorBody (with its ErrorCode enum) is what the frontend error schema is generated from, so there is no hand-written error schema on either end.

object
code
required

Machine-readable, stable error code.

string
Allowed values: not_found unauthorized forbidden bad_request unprocessable precondition_failed conflict method_not_allowed rate_limited quota_exceeded database_error docker_error vault_error internal_error
details
One of:
null
error
required

Human-readable message (the server’s English text; the client may localize by code).

string
Example
{
  "code": "not_found"
}

500

Section titled “500”

Structured server error

Media typeapplication/json

The canonical JSON body of every error response — the single source of truth the frontend binds to. Every AppError serializes as this exact shape, and the generated OpenAPI component ApiErrorBody (with its ErrorCode enum) is what the frontend error schema is generated from, so there is no hand-written error schema on either end.

object
code
required

Machine-readable, stable error code.

string
Allowed values: not_found unauthorized forbidden bad_request unprocessable precondition_failed conflict method_not_allowed rate_limited quota_exceeded database_error docker_error vault_error internal_error
details
One of:
null
error
required

Human-readable message (the server’s English text; the client may localize by code).

string
Example
{
  "code": "not_found"
}