# PodDisruptionBudget — voluntary disruption (node drain, vs) sırasında
# en az kaç pod ayakta kalsın garantisi
apiVersion: policy/v1
kind: PodDisruptionBudget
metadata:
  name: <APP_NAME>
  namespace: <NAMESPACE>
spec:
  minAvailable: 2                  # veya: maxUnavailable: 1
  selector:
    matchLabels:
      app.kubernetes.io/name: <APP_NAME>
  unhealthyPodEvictionPolicy: AlwaysAllow   # K8s 1.27+ — unhealthy pod'lar evict edilebilir