[kcp] Make kcp.skipPhases field mutable

Makes KCP skipPhases field mutable, needed in cases like disabling
kube-proxy deployment on an existing cluster.

Signed-off-by: Jim Ntosas <[email protected]>

Author: dntosas

controlplane/kubeadm/api/v1beta1/kubeadm_control_plane_webhook.go

@@ -115,6 +115,7 @@ const (
 	initConfiguration    = "initConfiguration"
 	joinConfiguration    = "joinConfiguration"
 	nodeRegistration     = "nodeRegistration"
+	skipPhases           = "skipPhases"
 	patches              = "patches"
 	directory            = "directory"
 	preKubeadmCommands   = "preKubeadmCommands"
@@ -148,8 +149,10 @@ func (in *KubeadmControlPlane) ValidateUpdate(old runtime.Object) error {
 		{spec, kubeadmConfigSpec, clusterConfiguration, scheduler, "*"},
 		{spec, kubeadmConfigSpec, initConfiguration, nodeRegistration, "*"},
 		{spec, kubeadmConfigSpec, initConfiguration, patches, directory},
+		{spec, kubeadmConfigSpec, initConfiguration, skipPhases},
 		{spec, kubeadmConfigSpec, joinConfiguration, nodeRegistration, "*"},
 		{spec, kubeadmConfigSpec, joinConfiguration, patches, directory},
+		{spec, kubeadmConfigSpec, joinConfiguration, skipPhases},
 		{spec, kubeadmConfigSpec, preKubeadmCommands},
 		{spec, kubeadmConfigSpec, postKubeadmCommands},
 		{spec, kubeadmConfigSpec, files},

controlplane/kubeadm/api/v1beta1/kubeadm_control_plane_webhook_test.go

@@ -651,6 +651,12 @@ func TestKubeadmControlPlaneValidateUpdate(t *testing.T) {
 		Directory: "/tmp/patches",
 	}
 
+	updateInitConfigurationSkipPhases := before.DeepCopy()
+	updateInitConfigurationSkipPhases.Spec.KubeadmConfigSpec.InitConfiguration.SkipPhases = []string{"addon/kube-proxy"}
+
+	updateJoinConfigurationSkipPhases := before.DeepCopy()
+	updateJoinConfigurationSkipPhases.Spec.KubeadmConfigSpec.JoinConfiguration.SkipPhases = []string{"addon/kube-proxy"}
+
 	updateDiskSetup := before.DeepCopy()
 	updateDiskSetup.Spec.KubeadmConfigSpec.DiskSetup = &bootstrapv1.DiskSetup{
 		Filesystems: []bootstrapv1.Filesystem{
@@ -985,6 +991,18 @@ func TestKubeadmControlPlaneValidateUpdate(t *testing.T) {
 			before:    before,
 			kcp:       updateJoinConfigurationPatches,
 		},
+		{
+			name:      "should allow changes to initConfiguration.skipPhases",
+			expectErr: false,
+			before:    before,
+			kcp:       updateInitConfigurationSkipPhases,
+		},
+		{
+			name:      "should allow changes to joinConfiguration.skipPhases",
+			expectErr: false,
+			before:    before,
+			kcp:       updateJoinConfigurationSkipPhases,
+		},
 		{
 			name:      "should allow changes to diskSetup",
 			expectErr: false,