Pod disruption budget

[ricfo-tricentis]

Describe the feature
When we are upgrading the cluster or adding/removing node pools, we are getting error that new image cannot be pulled because the connaisseur service is not available. The solution is either to uninstall the helm chart before the operation and install it back after, or use pod disruption budget like following:

apiVersion: policy/v1
kind: PodDisruptionBudget
metadata:
  name: connaisseur
  namespace: connaisseur
spec:
  minAvailable: 1
  selector:
    matchLabels:
      app.kubernetes.io/instance: connaisseur

Optional: Is your feature request related to a problem? Please describe.

Optional: Implementation ideas

Optional: Additional context

I would follow this link, but I'm lazy atm. https://awjunaid.com/kubernetes/how-to-implement-pod-disruption-budgets-with-helm-in-kubernetes/