requests:
      cpu: 1000m
      memory: 1G
  replicaCount: 1
  nodeSelector:
    kubernetes.io/os: linux
  tolerations:
  - key: dedicated
    operator: Exists
    effect: NoSchedule
  - key: CriticalAddonsOnly
    operator: Exists
  autoscaleEnabled: true
  autoscaleMax: 3
  autoscaleMin: 1
  cpu:
    targetAverageUtilization: 80
  traceSampling: 1.0
  image: pilot
  env:
    GODEBUG: gctrace=1
global:

                - key: k8s-app
                  operator: In
                  values: ["kube-dns"]
              topologyKey: kubernetes.io/hostname
      tolerations:
      - key: CriticalAddonsOnly
        operator: Exists
      - key: node-role.kubernetes.io/control-plane
        effect: NoSchedule
      nodeSelector:
        kubernetes.io/os: linux
      containers:
      - name: coredns

        nodeSelector: # ... default empty
          master: "true"
        tolerations: # ... default empty
        - key: dedicated
          operator: Exists
          effect: NoSchedule
        - key: CriticalAddonsOnly
          operator: Exists
```

The K8s settings are defined in detail in the
[operator API](https://github.com/istio/api/blob/master/operator/v1alpha1/operator.proto).