chart/templates/services/api/pdb.yaml

apiVersion: policy/v1
kind: PodDisruptionBudget
metadata:
  labels: {{ include "labels.api" . | nindent 4 }}
  name: "{{ include "name" . }}-api"
  namespace: {{ .Release.Namespace }}
spec:
  maxUnavailable: 1
  selector:
    matchLabels: {{ include "labels.api" . | nindent 6 }}