apiVersion: keda.sh/v1alpha1
kind: ScaledObject
metadata:
  name: forgejo-runner-scaler
  namespace: forgejo-runners
spec:
  scaleTargetRef:
    apiVersion: apps/v1
    kind: StatefulSet
    name: forgejo-runner
  minReplicaCount: 1   # keep at least 1 runner registered
  maxReplicaCount: 100  # tune based on cluster capacity, not node count
  pollingInterval: 15  # seconds between KEDA polls
  cooldownPeriod: 60   # seconds before scaling down after jobs clear
  triggers:
    - type: metrics-api
      metadata:
        # 1 replica per pending job (capped at maxReplicaCount)
        targetValue: "1"
        url: "http://forgejo-metrics-exporter.forgejo-runners.svc.cluster.local:8080"
        valueLocation: "value"