Move webhooks to a separate package

api/v1beta1/machinehealthcheck_types.go

@@ -17,11 +17,21 @@ limitations under the License.
 package v1beta1
 
 import (
+	"time"
+
 	corev1 "k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/util/intstr"
 )
 
+var (
+	// DefaultNodeStartupTimeout is the time allowed for a node to start up.
+	// Can be made longer as part of spec if required for particular provider.
+	// 10 minutes should allow the instance to start and the node to join the
+	// cluster on most providers.
+	DefaultNodeStartupTimeout = metav1.Duration{Duration: 10 * time.Minute}
+)
+
 // ANCHOR: MachineHealthCheckSpec
 
 // MachineHealthCheckSpec defines the desired state of MachineHealthCheck.

controlplane/kubeadm/internal/controllers/controller_test.go

@@ -55,6 +55,7 @@ import (
 	"sigs.k8s.io/cluster-api/internal/contract"
 	"sigs.k8s.io/cluster-api/internal/test/builder"
 	"sigs.k8s.io/cluster-api/internal/util/ssa"
+	"sigs.k8s.io/cluster-api/internal/webhooks"
 	"sigs.k8s.io/cluster-api/util"
 	"sigs.k8s.io/cluster-api/util/certs"
 	"sigs.k8s.io/cluster-api/util/collections"
@@ -2418,7 +2419,10 @@ func createMachineNodePair(name string, cluster *clusterv1.Cluster, kcp *control
 			},
 		},
 	}
-	machine.Default()
+	webhook := webhooks.Machine{}
+	if err := webhook.Default(ctx, machine); err != nil {
+		panic(err)
+	}
 
 	node := &corev1.Node{
 		ObjectMeta: metav1.ObjectMeta{

internal/controllers/machinehealthcheck/machinehealthcheck_controller_test.go

@@ -46,6 +46,7 @@ import (
 	"sigs.k8s.io/cluster-api/controllers/remote"
 	capierrors "sigs.k8s.io/cluster-api/errors"
 	"sigs.k8s.io/cluster-api/internal/test/builder"
+	"sigs.k8s.io/cluster-api/internal/webhooks"
 	"sigs.k8s.io/cluster-api/util"
 	"sigs.k8s.io/cluster-api/util/conditions"
 	"sigs.k8s.io/cluster-api/util/patch"
@@ -1248,7 +1249,7 @@ func TestMachineHealthCheck_Reconcile(t *testing.T) {
 				},
 			},
 		}
-		machineSet.Default()
+		g.Expect((&webhooks.MachineSet{}).Default(ctx, machineSet)).Should(Succeed())
 		g.Expect(env.Create(ctx, machineSet)).To(Succeed())
 
 		// Ensure machines have been created.

internal/controllers/topology/cluster/desired_state.go

@@ -38,6 +38,7 @@ import (
 	"sigs.k8s.io/cluster-api/internal/controllers/topology/cluster/scope"
 	"sigs.k8s.io/cluster-api/internal/hooks"
 	tlog "sigs.k8s.io/cluster-api/internal/log"
+	"sigs.k8s.io/cluster-api/internal/webhooks"
 	"sigs.k8s.io/cluster-api/util"
 )
 
@@ -1015,7 +1016,9 @@ func computeMachineHealthCheck(healthCheckTarget client.Object, selector *metav1
 
 	// Default all fields in the MachineHealthCheck using the same function called in the webhook. This ensures the desired
 	// state of the object won't be different from the current state due to webhook Defaulting.
-	mhc.Default()
+	if err := (&webhooks.MachineHealthCheck{}).Default(context.TODO(), mhc); err != nil {
+		panic(err)
+	}
 
 	return mhc
 }

internal/controllers/topology/cluster/reconcile_state_test.go

@@ -30,12 +30,14 @@ import (
 	apierrors "k8s.io/apimachinery/pkg/api/errors"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
+	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/apimachinery/pkg/types"
 	"k8s.io/apimachinery/pkg/util/intstr"
 	"k8s.io/utils/pointer"
 	"sigs.k8s.io/controller-runtime/pkg/client"
 	"sigs.k8s.io/controller-runtime/pkg/client/fake"
 	. "sigs.k8s.io/controller-runtime/pkg/envtest/komega"
+	"sigs.k8s.io/controller-runtime/pkg/webhook/admission"
 
 	clusterv1 "sigs.k8s.io/cluster-api/api/v1beta1"
 	runtimev1 "sigs.k8s.io/cluster-api/exp/runtime/api/v1alpha1"
@@ -48,6 +50,7 @@ import (
 	fakeruntimeclient "sigs.k8s.io/cluster-api/internal/runtime/client/fake"
 	"sigs.k8s.io/cluster-api/internal/test/builder"
 	"sigs.k8s.io/cluster-api/internal/util/ssa"
+	"sigs.k8s.io/cluster-api/internal/webhooks"
 )
 
 var (
@@ -1551,7 +1554,6 @@ func TestReconcileControlPlaneMachineHealthCheck(t *testing.T) {
 				InfrastructureMachineTemplate: infrastructureMachineTemplate.DeepCopy(),
 				MachineHealthCheck:            mhcBuilder.Build()},
 			want: mhcBuilder.DeepCopy().
-				WithDefaulter(true).
 				Build(),
 		},
 		{
@@ -1582,7 +1584,6 @@ func TestReconcileControlPlaneMachineHealthCheck(t *testing.T) {
 			},
 			// Want to get the updated version of the MachineHealthCheck after reconciliation.
 			want: mhcBuilder.DeepCopy().WithMaxUnhealthy(&maxUnhealthy).
-				WithDefaulter(true).
 				Build(),
 		},
 		{
@@ -1675,8 +1676,11 @@ func TestReconcileControlPlaneMachineHealthCheck(t *testing.T) {
 				return
 			}
 
+			want := tt.want.DeepCopy()
+			g.Expect((&webhooks.MachineHealthCheck{}).Default(ctx, want)).To(Succeed())
+
 			g.Expect(err).ToNot(HaveOccurred())
-			g.Expect(gotMHC).To(EqualObject(tt.want, IgnoreAutogeneratedMetadata, IgnorePaths{".kind", ".apiVersion"}))
+			g.Expect(gotMHC).To(EqualObject(want, IgnoreAutogeneratedMetadata, IgnorePaths{".kind", ".apiVersion"}))
 		})
 	}
 }
@@ -2579,7 +2583,7 @@ func TestReconcileMachineDeploymentMachineHealthCheck(t *testing.T) {
 					mhcBuilder.DeepCopy().Build()),
 			},
 			want: []*clusterv1.MachineHealthCheck{
-				mhcBuilder.DeepCopy().WithDefaulter(true).Build()},
+				mhcBuilder.DeepCopy().Build()},
 		},
 		{
 			name: "Create a new MachineHealthCheck if the MachineDeployment is modified to include one",
@@ -2592,7 +2596,7 @@ func TestReconcileMachineDeploymentMachineHealthCheck(t *testing.T) {
 					mhcBuilder.DeepCopy().Build()),
 			},
 			want: []*clusterv1.MachineHealthCheck{
-				mhcBuilder.DeepCopy().WithDefaulter(true).Build()}},
+				mhcBuilder.DeepCopy().Build()}},
 		{
 			name: "Update MachineHealthCheck spec adding a field if the spec adds a field",
 			current: []*scope.MachineDeploymentState{
@@ -2605,7 +2609,6 @@ func TestReconcileMachineDeploymentMachineHealthCheck(t *testing.T) {
 			want: []*clusterv1.MachineHealthCheck{
 				mhcBuilder.DeepCopy().
 					WithMaxUnhealthy(&maxUnhealthy).
-					WithDefaulter(true).
 					Build()},
 		},
 		{
@@ -2619,7 +2622,7 @@ func TestReconcileMachineDeploymentMachineHealthCheck(t *testing.T) {
 					mhcBuilder.DeepCopy().Build()),
 			},
 			want: []*clusterv1.MachineHealthCheck{
-				mhcBuilder.DeepCopy().WithDefaulter(true).Build(),
+				mhcBuilder.DeepCopy().Build(),
 			},
 		},
 		{
@@ -2711,7 +2714,10 @@ func TestReconcileMachineDeploymentMachineHealthCheck(t *testing.T) {
 
 			g.Expect(tt.want).To(HaveLen(len(gotMachineHealthCheckList.Items)))
 
-			for _, wantMHC := range tt.want {
+			for _, wantMHCOrig := range tt.want {
+				wantMHC := wantMHCOrig.DeepCopy()
+				g.Expect((&webhooks.MachineHealthCheck{}).Default(ctx, wantMHC)).To(Succeed())
+
 				for _, gotMHC := range gotMachineHealthCheckList.Items {
 					if wantMHC.Name == gotMHC.Name {
 						actual := gotMHC
@@ -2729,7 +2735,7 @@ func TestReconcileMachineDeploymentMachineHealthCheck(t *testing.T) {
 }
 
 func newFakeMachineDeploymentTopologyState(name string, infrastructureMachineTemplate, bootstrapTemplate *unstructured.Unstructured, machineHealthCheck *clusterv1.MachineHealthCheck) *scope.MachineDeploymentState {
-	return &scope.MachineDeploymentState{
+	mdState := &scope.MachineDeploymentState{
 		Object: builder.MachineDeployment(metav1.NamespaceDefault, name).
 			WithInfrastructureTemplate(infrastructureMachineTemplate).
 			WithBootstrapTemplate(bootstrapTemplate).
@@ -2739,12 +2745,18 @@ func newFakeMachineDeploymentTopologyState(name string, infrastructureMachineTem
 			}).
 			WithClusterName("cluster-1").
 			WithReplicas(1).
-			WithDefaulter(true).
 			Build(),
 		InfrastructureMachineTemplate: infrastructureMachineTemplate.DeepCopy(),
 		BootstrapTemplate:             bootstrapTemplate.DeepCopy(),
 		MachineHealthCheck:            machineHealthCheck.DeepCopy(),
 	}
+
+	scheme := runtime.NewScheme()
+	_ = clusterv1.AddToScheme(scheme)
+	if err := (webhooks.MachineDeploymentWebhook(scheme)).Default(admission.NewContextWithRequest(ctx, admission.Request{}), mdState.Object); err != nil {
+		panic(err)
+	}
+	return mdState
 }
 
 func toMachineDeploymentTopologyStateMap(states []*scope.MachineDeploymentState) map[string]*scope.MachineDeploymentState {
@@ -2779,7 +2791,7 @@ func TestReconciler_reconcileMachineHealthCheck(t *testing.T) {
 			name:    "Create a MachineHealthCheck",
 			current: nil,
 			desired: mhcBuilder.DeepCopy().Build(),
-			want:    mhcBuilder.DeepCopy().WithDefaulter(true).Build(),
+			want:    mhcBuilder.DeepCopy().Build(),
 		},
 		{
 			name:    "Update a MachineHealthCheck with changes",
@@ -2798,14 +2810,14 @@ func TestReconciler_reconcileMachineHealthCheck(t *testing.T) {
 					Status:  corev1.ConditionUnknown,
 					Timeout: metav1.Duration{Duration: 1000 * time.Minute},
 				},
-			}).WithDefaulter(true).Build(),
+			}).Build(),
 		},
 		{
 			name:    "Don't change a MachineHealthCheck with no difference between desired and current",
 			current: mhcBuilder.DeepCopy().Build(),
 			// update the unhealthy conditions in the MachineHealthCheck
 			desired: mhcBuilder.DeepCopy().Build(),
-			want:    mhcBuilder.DeepCopy().WithDefaulter(true).Build(),
+			want:    mhcBuilder.DeepCopy().Build(),
 		},
 		{
 			name:    "Delete a MachineHealthCheck",
@@ -2870,7 +2882,12 @@ func TestReconciler_reconcileMachineHealthCheck(t *testing.T) {
 				}
 			}
 
-			g.Expect(got).To(EqualObject(tt.want, IgnoreAutogeneratedMetadata, IgnorePaths{".kind", ".apiVersion"}))
+			want := tt.want.DeepCopy()
+			if want != nil {
+				g.Expect((&webhooks.MachineHealthCheck{}).Default(ctx, want)).To(Succeed())
+			}
+
+			g.Expect(got).To(EqualObject(want, IgnoreAutogeneratedMetadata, IgnorePaths{".kind", ".apiVersion"}))
 		})
 	}
 }

internal/test/builder/builders.go

@@ -17,17 +17,14 @@ limitations under the License.
 package builder
 
 import (
-	"context"
 	"fmt"
 	"strings"
 
-	admissionv1 "k8s.io/api/admission/v1"
 	corev1 "k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
 	"k8s.io/apimachinery/pkg/util/intstr"
 	"sigs.k8s.io/controller-runtime/pkg/client"
-	"sigs.k8s.io/controller-runtime/pkg/webhook/admission"
 
 	clusterv1 "sigs.k8s.io/cluster-api/api/v1beta1"
 	expv1 "sigs.k8s.io/cluster-api/exp/api/v1beta1"
@@ -1150,7 +1147,6 @@ type MachineDeploymentBuilder struct {
 	selector               *metav1.LabelSelector
 	version                *string
 	replicas               *int32
-	defaulter              bool
 	generation             *int64
 	labels                 map[string]string
 	status                 *clusterv1.MachineDeploymentStatus
@@ -1206,12 +1202,6 @@ func (m *MachineDeploymentBuilder) WithReplicas(replicas int32) *MachineDeployme
 	return m
 }
 
-// WithDefaulter runs the Default function on the MachineDeploymentClassBuilder object.
-func (m *MachineDeploymentBuilder) WithDefaulter(defaulter bool) *MachineDeploymentBuilder {
-	m.defaulter = defaulter
-	return m
-}
-
 // WithGeneration sets the passed value on the machine deployments object metadata.
 func (m *MachineDeploymentBuilder) WithGeneration(generation int64) *MachineDeploymentBuilder {
 	m.generation = &generation
@@ -1267,20 +1257,7 @@ func (m *MachineDeploymentBuilder) Build() *clusterv1.MachineDeployment {
 			clusterv1.ClusterNameLabel: m.clusterName,
 		}
 	}
-	if m.defaulter {
-		scheme, err := clusterv1.SchemeBuilder.Build()
-		if err != nil {
-			panic(err)
-		}
-		ctx := admission.NewContextWithRequest(context.Background(), admission.Request{
-			AdmissionRequest: admissionv1.AdmissionRequest{
-				Operation: admissionv1.Create,
-			},
-		})
-		if err := clusterv1.MachineDeploymentDefaulter(scheme).Default(ctx, obj); err != nil {
-			panic(err)
-		}
-	}
+
 	return obj
 }
 
@@ -1499,7 +1476,6 @@ type MachineHealthCheckBuilder struct {
 	clusterName  string
 	conditions   []clusterv1.UnhealthyCondition
 	maxUnhealthy *intstr.IntOrString
-	defaulter    bool
 }
 
 // MachineHealthCheck returns a MachineHealthCheckBuilder with the given name and namespace.
@@ -1540,12 +1516,6 @@ func (m *MachineHealthCheckBuilder) WithMaxUnhealthy(maxUnhealthy *intstr.IntOrS
 	return m
 }
 
-// WithDefaulter runs the Default function on the MachineHealthCheck object.
-func (m *MachineHealthCheckBuilder) WithDefaulter(defaulter bool) *MachineHealthCheckBuilder {
-	m.defaulter = defaulter
-	return m
-}
-
 // Build returns a MachineHealthCheck with the supplied details.
 func (m *MachineHealthCheckBuilder) Build() *clusterv1.MachineHealthCheck {
 	// create a MachineHealthCheck with the spec given in the ClusterClass
@@ -1569,8 +1539,6 @@ func (m *MachineHealthCheckBuilder) Build() *clusterv1.MachineHealthCheck {
 	if m.clusterName != "" {
 		mhc.Labels = map[string]string{clusterv1.ClusterNameLabel: m.clusterName}
 	}
-	if m.defaulter {
-		mhc.Default()
-	}
+
 	return mhc
 }

internal/test/envtest/environment.go

@@ -267,27 +267,27 @@ func newEnvironment(uncachedObjs ...client.Object) *Environment {
 	}
 
 	// Set minNodeStartupTimeout for Test, so it does not need to be at least 30s
-	clusterv1.SetMinNodeStartupTimeout(metav1.Duration{Duration: 1 * time.Millisecond})
+	webhooks.SetMinNodeStartupTimeout(metav1.Duration{Duration: 1 * time.Millisecond})
 
 	if err := (&webhooks.Cluster{Client: mgr.GetClient()}).SetupWebhookWithManager(mgr); err != nil {
 		klog.Fatalf("unable to create webhook: %+v", err)
 	}
 	if err := (&webhooks.ClusterClass{Client: mgr.GetClient()}).SetupWebhookWithManager(mgr); err != nil {
 		klog.Fatalf("unable to create webhook: %+v", err)
 	}
-	if err := (&clusterv1.Machine{}).SetupWebhookWithManager(mgr); err != nil {
+	if err := (&webhooks.Machine{}).SetupWebhookWithManager(mgr); err != nil {
 		klog.Fatalf("unable to create webhook: %+v", err)
 	}
-	if err := (&clusterv1.MachineHealthCheck{}).SetupWebhookWithManager(mgr); err != nil {
+	if err := (&webhooks.MachineHealthCheck{}).SetupWebhookWithManager(mgr); err != nil {
 		klog.Fatalf("unable to create webhook: %+v", err)
 	}
-	if err := (&clusterv1.Machine{}).SetupWebhookWithManager(mgr); err != nil {
+	if err := (&webhooks.Machine{}).SetupWebhookWithManager(mgr); err != nil {
 		klog.Fatalf("unable to create webhook: %+v", err)
 	}
-	if err := (&clusterv1.MachineSet{}).SetupWebhookWithManager(mgr); err != nil {
+	if err := (&webhooks.MachineSet{}).SetupWebhookWithManager(mgr); err != nil {
 		klog.Fatalf("unable to create webhook: %+v", err)
 	}
-	if err := (&clusterv1.MachineDeployment{}).SetupWebhookWithManager(mgr); err != nil {
+	if err := (&webhooks.MachineDeployment{}).SetupWebhookWithManager(mgr); err != nil {
 		klog.Fatalf("unable to create webhook: %+v", err)
 	}
 	if err := (&bootstrapv1.KubeadmConfig{}).SetupWebhookWithManager(mgr); err != nil {

internal/webhooks/clusterclass.go

@@ -366,7 +366,7 @@ func validateMachineHealthCheckClass(fldPath *field.Path, namepace string, m *cl
 			RemediationTemplate: m.RemediationTemplate,
 		}}
 
-	return mhc.ValidateCommonFields(fldPath)
+	return (&MachineHealthCheck{}).ValidateCommonFields(&mhc, fldPath)
 }
 
 func validateClusterClassMetadata(clusterClass *clusterv1.ClusterClass) field.ErrorList {