spec:
  replicas: {{ ternary 3 1 .Values.highAvailable }}
  template:
    spec:
      containers:
      - name: coredns
        resources:
          requests:
            cpu: 100m
            memory: 32Mi
          limits:
            memory: 128Mi
      nodeSelector:
        node-role.kubernetes.io/control-plane: ""
      affinity:
        podAntiAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
          - labelSelector:
              matchExpressions:
              - key: k8s-app
                operator: In
                values:
                - kube-dns
            topologyKey: "kubernetes.io/hostname"