affinity:
        {{- toYaml . | nindent 8 }}
      {{- end }}
      tolerations:
        # Make sure istio-cni-node gets scheduled on all nodes.
        - effect: NoSchedule
          operator: Exists
        # Mark the pod as a critical add-on for rescheduling.
        - key: CriticalAddonsOnly
          operator: Exists
        - effect: NoExecute
          operator: Exists
      priorityClassName: system-node-critical