spec:
  hard:
    pods: {{ .Values.cni.resourceQuotas.pods | quote }}
  scopeSelector:
    matchExpressions:
    - operator: In
      scopeName: PriorityClass
      values:
      - system-node-critical

    #podDNSSearchNamespaces:
    #- global
    #- "{{ valueOrDefault .DeploymentMeta.Namespace \"default\" }}.global"

    # Kubernetes >=v1.11.0 will create two PriorityClass, including system-cluster-critical and
    # system-node-critical, it is better to configure this in order to make sure your Istio pods
    # will not be killed because of low priority class.

    #podDNSSearchNamespaces:
    #- global
    #- "{{ valueOrDefault .DeploymentMeta.Namespace \"default\" }}.global"

    # Kubernetes >=v1.11.0 will create two PriorityClass, including system-cluster-critical and
    # system-node-critical, it is better to configure this in order to make sure your Istio pods
    # will not be killed because of low priority class.

    # If empty, default scope and level will be used as configured in code
    logging:
      level: "default:info"

    # Kubernetes >=v1.11.0 will create two PriorityClass, including system-cluster-critical and
    # system-node-critical, it is better to configure this in order to make sure your Istio pods
    # will not be killed because of low priority class.

    # If empty, default scope and level will be used as configured in code
    logging:
      level: "default:info"

    # Kubernetes >=v1.11.0 will create two PriorityClass, including system-cluster-critical and
    # system-node-critical, it is better to configure this in order to make sure your Istio pods
    # will not be killed because of low priority class.

        - 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
      serviceAccountName: istio-cni
      # Minimize downtime during a rolling upgrade or deletion; tell Kubernetes to do a "force

        - mountPath: /tmp
          name: tmp
        {{- with .Values.volumeMounts }}
          {{- toYaml . | nindent 8 }}
        {{- end }}
      priorityClassName: system-node-critical
      terminationGracePeriodSeconds: {{ .Values.terminationGracePeriodSeconds }}
      volumes:
      - name: istio-token
        projected:
          sources:
          - serviceAccountToken:

```console helm install istio-cni istio/cni -n kube-system ``` Installation in `kube-system` is recommended to ensure the [`system-node-critical`](https://kubernetes.io/docs/tasks/administer-cluster/guaranteed-scheduling-critical-addon-pods/) `priorityClassName` can be used. You can install in other namespace only on K8S clusters that allow 'system-node-critical' outside of kube-system. ## Ambient To enable ambient, you need to add `--set cni.ambient.enabled=true`. ### Calico For Calico, you must...