ps.patches,
	)
}

const (
	// KubeletConfiguration defines the kubeletconfiguration patch target.
	KubeletConfiguration = "kubeletconfiguration"
	// CoreDNSDeployment defines the corednsdeployment patch target.
	CoreDNSDeployment = "corednsdeployment"
)

var (
	pathLock  = &sync.RWMutex{}
	pathCache = map[string]*PatchManager{}

	patchTypes = map[string]types.PatchType{
		"json":      types.JSONPatchType,

	if err := apiclient.CreateOrUpdateServiceAccount(client, coreDNSServiceAccount); err != nil {
		return err
	}

	coreDNSDeployment := &apps.Deployment{}
	if err := kuberuntime.DecodeInto(clientsetscheme.Codecs.UniversalDecoder(), deploymentBytes, coreDNSDeployment); err != nil {
		return errors.Wrapf(err, "%s Deployment", unableToDecodeCoreDNS)
	}

    port: 53
    protocol: TCP
    targetPort: 53
  - name: metrics
    port: 9153
    protocol: TCP
    targetPort: 9153
  selector:
    k8s-app: kube-dns
`

	// CoreDNSDeployment is the CoreDNS Deployment manifest
	CoreDNSDeployment = `
apiVersion: apps/v1
kind: Deployment
metadata:
  name: {{ .DeploymentName }}
  namespace: kube-system
  labels:
    k8s-app: kube-dns
spec:
  replicas: {{ .Replicas }}

		`"kube-apiserver0+merge.yaml" or just "etcd.json". ` +
		`"target" can be one of "kube-apiserver", "kube-controller-manager", "kube-scheduler", "etcd", "kubeletconfiguration", "corednsdeployment". ` +
		`"patchtype" can be one of "strategic", "merge" or "json" and they match the patch formats ` +
		`supported by kubectl. The default "patchtype" is "strategic". "extension" must be either ` +

func TestCompileManifests(t *testing.T) {
	replicas := int32(coreDNSReplicas)
	var tests = []struct {
		name     string
		manifest string
		data     interface{}
	}{
		{
			name:     "CoreDNSDeployment manifest",
			manifest: CoreDNSDeployment,
			data: struct {
				DeploymentName, Image, ControlPlaneTaintKey string
				Replicas                                    *int32
			}{
				DeploymentName:       "foo",

	// For example, "kube-apiserver0+merge.yaml" or just "etcd.json". "target" can be one of
	// "kube-apiserver", "kube-controller-manager", "kube-scheduler", "etcd", "kubeletconfiguration", "corednsdeployment".
	// "patchtype" can be one of "strategic" "merge" or "json" and they match the patch formats supported by kubectl.
	// The default "patchtype" is "strategic". "extension" must be either "json" or "yaml".

	// For example, "kube-apiserver0+merge.yaml" or just "etcd.json". "target" can be one of
	// "kube-apiserver", "kube-controller-manager", "kube-scheduler", "etcd", "kubeletconfiguration", "corednsdeployment".
	// "patchtype" can be one of "strategic" "merge" or "json" and they match the patch formats supported by kubectl.
	// The default "patchtype" is "strategic". "extension" must be either "json" or "yaml".

- Kubeadm: enhance the "patches" functionality to be able to patch coredns deployment. The new patch target is called "corednsdeployment" (e.g. patch file "corednsdeployment+json.json"). This makes it possible to apply custom patches to coredns deployment during "init" and "upgrade". ([#124820](https://github.com/kubernetes/kubernetes/pull/124820), [@SataQiu](https://github.com/SataQiu)) [SIG Cluster...

	// For example, "kube-apiserver0+merge.yaml" or just "etcd.json". "target" can be one of
	// "kube-apiserver", "kube-controller-manager", "kube-scheduler", "etcd", "kubeletconfiguration", "corednsdeployment".
	// "patchtype" can be one of "strategic" "merge" or "json" and they match the patch formats supported by kubectl.
	// The default "patchtype" is "strategic". "extension" must be either "json" or "yaml".