Convert machineSpec.Versions to a pointer

Author: enxebre

cmd/clusterctl/clusterdeployer/clusterdeployer_test.go

@@ -1193,7 +1193,7 @@ func generateTestMasterMachine(name string) *clusterv1.Machine {
 			Name: name,
 		},
 		Spec: clusterv1.MachineSpec{
-			Versions: clusterv1.MachineVersionInfo{
+			Versions: &clusterv1.MachineVersionInfo{
 				ControlPlane: "1.10.1",
 			},
 		},

pkg/apis/cluster/v1alpha1/machine_types.go

@@ -70,7 +70,7 @@ type MachineSpec struct {
 	// should populate the values it uses when persisting Machine objects.
 	// A Machine spec missing this field at runtime is invalid.
 	// +optional
-	Versions MachineVersionInfo `json:"versions,omitempty"`
+	Versions *MachineVersionInfo `json:"versions,omitempty"`
 
 	// To populate in the associated Node for dynamic kubelet config. This
 	// field already exists in Node, so any updates to it in the Machine