podSpec: &api.PodSpec{
				Affinity: &api.Affinity{
					PodAntiAffinity: &api.PodAntiAffinity{
						RequiredDuringSchedulingIgnoredDuringExecution: []api.PodAffinityTerm{},
					},
				},
			},
			wantPodSpec: &api.PodSpec{
				Affinity: &api.Affinity{
					PodAntiAffinity: &api.PodAntiAffinity{
						RequiredDuringSchedulingIgnoredDuringExecution: []api.PodAffinityTerm{},
					},
				},
			},
		},

	}
	if p.Spec.Affinity.PodAntiAffinity == nil {
		p.Spec.Affinity.PodAntiAffinity = &v1.PodAntiAffinity{}
	}
	term := v1.PodAffinityTerm{LabelSelector: labelSelector, TopologyKey: topologyKey}
	switch kind {
	case PodAntiAffinityWithRequiredReq:
		p.Spec.Affinity.PodAntiAffinity.RequiredDuringSchedulingIgnoredDuringExecution = append(
			p.Spec.Affinity.PodAntiAffinity.RequiredDuringSchedulingIgnoredDuringExecution,

		},
		Spec: v1.PodSpec{
			NodeName: nodeName,
			Affinity: &v1.Affinity{
				PodAffinity: &v1.PodAffinity{
					RequiredDuringSchedulingIgnoredDuringExecution: affinity,
				},
				PodAntiAffinity: &v1.PodAntiAffinity{
					RequiredDuringSchedulingIgnoredDuringExecution: antiAffinity,
				},
			},
		},
	}
}

func TestRequiredAffinitySingleNode(t *testing.T) {

          operator: In
          values:
          - {{ $key | quote }}
    {{- end }}
  {{- end }}
{{- end }}

{{- define "podAntiAffinity" }}
{{- if or .podAntiAffinityLabelSelector .podAntiAffinityTermLabelSelector}}
  podAntiAffinity:
    {{- if .podAntiAffinityLabelSelector }}
    requiredDuringSchedulingIgnoredDuringExecution:
    {{- include "podAntiAffinityRequiredDuringScheduling" . }}

          operator: In
          values:
          - {{ $key | quote }}
    {{- end }}
  {{- end }}
{{- end }}

{{- define "podAntiAffinity" }}
{{- if or .podAntiAffinityLabelSelector .podAntiAffinityTermLabelSelector}}
  podAntiAffinity:
    {{- if .podAntiAffinityLabelSelector }}
    requiredDuringSchedulingIgnoredDuringExecution:
    {{- include "podAntiAffinityRequiredDuringScheduling" . }}

								Operator: metav1.LabelSelectorOpDoesNotExist,
							},
						},
					},
					TopologyKey: "region",
				},
			},
		},
	}
	awayFromS1InAz := &v1.Affinity{
		PodAntiAffinity: &v1.PodAntiAffinity{
			PreferredDuringSchedulingIgnoredDuringExecution: []v1.WeightedPodAffinityTerm{
				{
					Weight: 5,
					PodAffinityTerm: v1.PodAffinityTerm{
						LabelSelector: &metav1.LabelSelector{

metadata:
  name: notsleep
spec:
  replicas: 1
  selector:
    matchLabels:
      app: notsleep
  template:
    metadata:
      labels:
        app: notsleep
    spec:
      affinity:
        podAntiAffinity:
          preferredDuringSchedulingIgnoredDuringExecution:
          - weight: 100
            podAffinityTerm:
              labelSelector:
                matchExpressions:
                - key: app

	if affinity != nil && affinity.PodAntiAffinity != nil {
		if len(affinity.PodAntiAffinity.RequiredDuringSchedulingIgnoredDuringExecution) != 0 {
			terms = affinity.PodAntiAffinity.RequiredDuringSchedulingIgnoredDuringExecution
		}
		// TODO: Uncomment this block when implement RequiredDuringSchedulingRequiredDuringExecution.
		// if len(affinity.PodAntiAffinity.RequiredDuringSchedulingRequiredDuringExecution) != 0 {

    spec:
      securityContext:
        seccompProfile:
          type: RuntimeDefault
      priorityClassName: system-cluster-critical
      serviceAccountName: coredns
      affinity:
        podAntiAffinity:
          preferredDuringSchedulingIgnoredDuringExecution:
          - weight: 100
            podAffinityTerm:
              labelSelector:
                matchExpressions:
                  - key: k8s-app

    spec:
      securityContext:
        seccompProfile:
          type: RuntimeDefault
      priorityClassName: system-cluster-critical
      serviceAccountName: coredns
      affinity:
        podAntiAffinity:
          preferredDuringSchedulingIgnoredDuringExecution:
          - weight: 100
            podAffinityTerm:
              labelSelector:
                matchExpressions:
                  - key: k8s-app