kubernetes.horizontalpodautoscaler.ensure

Create or replace a namespaced Kubernetes HorizontalPodAutoscaler (autoscaling/v2)

Creates a HorizontalPodAutoscaler in the given namespace; replaces it in full if it already exists. Accepts a pre-built hpa_spec dict matching the Kubernetes V2HorizontalPodAutoscalerSpec schema (autoscaling/v2).

An HPA and a hardcoded replicas on the target Deployment fight each other: whichever wrote last wins, so a provisioner that re-applies a Deployment spec carrying replicas will repeatedly undo the autoscaler. Once a workload is autoscaled, its Deployment spec should omit replicas entirely.

CPU and memory targets need the metrics API on the cluster (metrics-server, or the managed equivalent). Without it the HPA is created successfully but never scales, reporting unknown for its current metrics — a silent failure that looks like a working autoscaler until load arrives.

Inputs:

• connection_uuid: Cloud connection UUID (required)
• namespace: Target namespace (required)
• name: HorizontalPodAutoscaler name (required)
• hpa_spec: Full V2HorizontalPodAutoscalerSpec dict (required). Supports scaleTargetRef, minReplicas, maxReplicas, metrics, and behavior.
• labels: Optional dict of metadata labels set on the object.

Outputs:

• existed: True if an existing HPA was replaced, False if created.

Plugin required: context.get_plugin("connection").kubernetes_runner_clients(connection_uuid, organization_uuid) must expose autoscaling_v2 — available from ltinteg-cloud-connections with the storage/policy/autoscaling clients.

Overview

Property	Value
Workflow type	Atomic
Library	App-kubernetes
Version	1.0

Input Schema

Field	Type	Required	Default	Description
connection_uuid	uuid	Yes	—	—
namespace	string	Yes	—	—
name	string	Yes	—	—
hpa_spec	json	Yes	—	—
labels	json	No	—	—
workflow_run_id	string	No	—	Engine workflow run id for DAG step execution
organization_uuid	uuid	No	—	—

Output Schema

Field	Type	Required	Default	Description
connection_uuid	uuid	No	—	—
organization_uuid	uuid	No	—	—
namespace	string	No	—	—
name	string	No	—	—
hpa_spec	json	No	—	—
labels	json	No	—	—
existed	boolean	No	—	—
workflow_run_id	string	No	—	Engine workflow run id for DAG step execution
failure_reason	string	No	—	—
failure_type	string	No	—	—
failed_action	string	No	—	—
failed_at_state	string	No	—	—
failed_step	string	No	—	—
failed_layer	string	No	—	—
error	string	No	—	—
error_type	string	No	—	—

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": "kubernetes.horizontalpodautoscaler.ensure",
  "initial_data": {
    "connection_uuid": "value",
    "namespace": "value",
    "name": "value",
    "hpa_spec": "value"
  }
}