# Forgejo Horizontal Pod Autoscaler
# RFC 0040: Self-Hosted Core Services
# ADR 0004: Set It and Forget It - auto-scaling required
apiVersion: autoscaling/v2
kind: HorizontalPodAutoscaler
metadata:
  name: forgejo
  namespace: forgejo
  labels:
    app.kubernetes.io/name: forgejo
    app.kubernetes.io/part-of: core-services
spec:
  scaleTargetRef:
    apiVersion: apps/v1
    kind: Deployment
    name: forgejo
  minReplicas: 2
  maxReplicas: 10
  metrics:
    # Scale on CPU utilization
    - type: Resource
      resource:
        name: cpu
        target:
          type: Utilization
          averageUtilization: 70
    # Scale on memory utilization
    - type: Resource
      resource:
        name: memory
        target:
          type: Utilization
          averageUtilization: 80
  behavior:
    scaleUp:
      stabilizationWindowSeconds: 60
      policies:
        - type: Pods
          value: 2
          periodSeconds: 60
    scaleDown:
      # Conservative scale-down
      stabilizationWindowSeconds: 300
      policies:
        - type: Pods
          value: 1
          periodSeconds: 120