Merge pull request #136921 from dims/dump-from-utils

Move dump package from apimachinery to k8s.io/utils Kubernetes-commit: 5b63a8c68e8e4d417ab3758c7a80118c2db27ac9
Merge pull request #135395 from pohly/apimachinery-wait-for-cache-sync
2026-02-15 00:07:52 +08:00 · 2026-02-12 21:25:53 +00:00 · 2026-02-11 09:19:44 +00:00 · 2026-02-10 22:08:40 +00:00 · 2026-02-10 15:20:41 -05:00 · 2026-02-10 00:34:08 +00:00
30 changed files with 3931 additions and 391 deletions
--- a/1
+++ b/1
@@ -10,5 +10,6 @@ reviewers:
  - sttts
  - munnerz
  - nikhita
+  - jefftree
 labels:
  - sig/api-machinery
--- a/README.md
+++ b/README.md
@@ -1,3 +1,8 @@
+> ⚠️ **This is an automatically published [staged repository](https://git.k8s.io/kubernetes/staging#external-repository-staging-area) for Kubernetes**.   
+> Contributions, including issues and pull requests, should be made to the main Kubernetes repository: [https://github.com/kubernetes/kubernetes](https://github.com/kubernetes/kubernetes).  
+> This repository is read-only for importing, and not used for direct contributions.  
+> See [CONTRIBUTING.md](./CONTRIBUTING.md) for more details.
+
 # sample-controller

 This repository implements a simple controller for watching Foo resources as
@@ -160,3 +165,6 @@ https://github.com/kubernetes/kubernetes/blob/master/staging/src/k8s.io/sample-c
 Code changes are made in that location, merged into k8s.io/kubernetes and
 later synced here.

+## Contributing
+
+See [CONTRIBUTING.md](CONTRIBUTING.md) for more information. Please note that [kubernetes/sample-controller](https://github.com/kubernetes/sample-controller/) is a readonly mirror repository, all development is done at [kubernetes/kubernetes](https://github.com/kubernetes/kubernetes).
--- a/controller.go
+++ b/controller.go
@@ -267,7 +267,7 @@ func (c *Controller) syncHandler(ctx context.Context, objectRef cache.ObjectName
 	deployment, err := c.deploymentsLister.Deployments(foo.Namespace).Get(deploymentName)
 	// If the resource doesn't exist, we'll create it
 	if errors.IsNotFound(err) {
-		deployment, err = c.kubeclientset.AppsV1().Deployments(foo.Namespace).Create(context.TODO(), newDeployment(foo), metav1.CreateOptions{FieldManager: FieldManager})
+		deployment, err = c.kubeclientset.AppsV1().Deployments(foo.Namespace).Create(ctx, newDeployment(foo), metav1.CreateOptions{FieldManager: FieldManager})
 	}

 	// If an error occurs during Get/Create, we'll requeue the item so we can
@@ -289,8 +289,8 @@ func (c *Controller) syncHandler(ctx context.Context, objectRef cache.ObjectName
 	// number does not equal the current desired replicas on the Deployment, we
 	// should update the Deployment resource.
 	if foo.Spec.Replicas != nil && *foo.Spec.Replicas != *deployment.Spec.Replicas {
-		logger.V(4).Info("Update deployment resource", "currentReplicas", *foo.Spec.Replicas, "desiredReplicas", *deployment.Spec.Replicas)
-		deployment, err = c.kubeclientset.AppsV1().Deployments(foo.Namespace).Update(context.TODO(), newDeployment(foo), metav1.UpdateOptions{FieldManager: FieldManager})
+		logger.V(4).Info("Update deployment resource", "currentReplicas", *deployment.Spec.Replicas, "desiredReplicas", *foo.Spec.Replicas)
+		deployment, err = c.kubeclientset.AppsV1().Deployments(foo.Namespace).Update(ctx, newDeployment(foo), metav1.UpdateOptions{FieldManager: FieldManager})
 	}

 	// If an error occurs during Update, we'll requeue the item so we can
@@ -302,7 +302,7 @@ func (c *Controller) syncHandler(ctx context.Context, objectRef cache.ObjectName

 	// Finally, we update the status block of the Foo resource to reflect the
 	// current state of the world
-	err = c.updateFooStatus(foo, deployment)
+	err = c.updateFooStatus(ctx, foo, deployment)
 	if err != nil {
 		return err
 	}
@@ -311,7 +311,7 @@ func (c *Controller) syncHandler(ctx context.Context, objectRef cache.ObjectName
 	return nil
 }

-func (c *Controller) updateFooStatus(foo *samplev1alpha1.Foo, deployment *appsv1.Deployment) error {
+func (c *Controller) updateFooStatus(ctx context.Context, foo *samplev1alpha1.Foo, deployment *appsv1.Deployment) error {
 	// NEVER modify objects from the store. It's a read-only, local cache.
 	// You can use DeepCopy() to make a deep copy of original object and modify this copy
 	// Or create a copy manually for better performance
@@ -321,7 +321,7 @@ func (c *Controller) updateFooStatus(foo *samplev1alpha1.Foo, deployment *appsv1
 	// we must use Update instead of UpdateStatus to update the Status block of the Foo resource.
 	// UpdateStatus will not allow changes to the Spec of the resource,
 	// which is ideal for ensuring nothing other than resource status has been updated.
-	_, err := c.sampleclientset.SamplecontrollerV1alpha1().Foos(foo.Namespace).UpdateStatus(context.TODO(), fooCopy, metav1.UpdateOptions{FieldManager: FieldManager})
+	_, err := c.sampleclientset.SamplecontrollerV1alpha1().Foos(foo.Namespace).UpdateStatus(ctx, fooCopy, metav1.UpdateOptions{FieldManager: FieldManager})
 	return err
 }

--- a/controller_test.go
+++ b/controller_test.go
@@ -34,6 +34,7 @@ import (
 	"k8s.io/client-go/tools/cache"
 	"k8s.io/client-go/tools/record"
 	"k8s.io/klog/v2/ktesting"
+	"k8s.io/utils/ptr"

 	samplecontroller "k8s.io/sample-controller/pkg/apis/samplecontroller/v1alpha1"
 	"k8s.io/sample-controller/pkg/generated/clientset/versioned/fake"
@@ -84,8 +85,8 @@ func newFoo(name string, replicas *int32) *samplecontroller.Foo {
 }

 func (f *fixture) newController(ctx context.Context) (*Controller, informers.SharedInformerFactory, kubeinformers.SharedInformerFactory) {
-	f.client = fake.NewSimpleClientset(f.objects...)
-	f.kubeclient = k8sfake.NewSimpleClientset(f.kubeobjects...)
+	f.client = fake.NewClientset(f.objects...)
+	f.kubeclient = k8sfake.NewClientset(f.kubeobjects...)

 	i := informers.NewSharedInformerFactory(f.client, noResyncPeriodFunc())
 	k8sI := kubeinformers.NewSharedInformerFactory(f.kubeclient, noResyncPeriodFunc())
@@ -247,7 +248,7 @@ func getRef(foo *samplecontroller.Foo, t *testing.T) cache.ObjectName {

 func TestCreatesDeployment(t *testing.T) {
 	f := newFixture(t)
-	foo := newFoo("test", int32Ptr(1))
+	foo := newFoo("test", ptr.To[int32](1))
 	_, ctx := ktesting.NewTestContext(t)

 	f.fooLister = append(f.fooLister, foo)
@@ -262,7 +263,7 @@ func TestCreatesDeployment(t *testing.T) {

 func TestDoNothing(t *testing.T) {
 	f := newFixture(t)
-	foo := newFoo("test", int32Ptr(1))
+	foo := newFoo("test", ptr.To[int32](1))
 	_, ctx := ktesting.NewTestContext(t)

 	d := newDeployment(foo)
@@ -278,13 +279,13 @@ func TestDoNothing(t *testing.T) {

 func TestUpdateDeployment(t *testing.T) {
 	f := newFixture(t)
-	foo := newFoo("test", int32Ptr(1))
+	foo := newFoo("test", ptr.To[int32](1))
 	_, ctx := ktesting.NewTestContext(t)

 	d := newDeployment(foo)

 	// Update replicas
-	foo.Spec.Replicas = int32Ptr(2)
+	foo.Spec.Replicas = ptr.To[int32](2)
 	expDeployment := newDeployment(foo)

 	f.fooLister = append(f.fooLister, foo)
@@ -299,7 +300,7 @@ func TestUpdateDeployment(t *testing.T) {

 func TestNotControlledByUs(t *testing.T) {
 	f := newFixture(t)
-	foo := newFoo("test", int32Ptr(1))
+	foo := newFoo("test", ptr.To[int32](1))
 	_, ctx := ktesting.NewTestContext(t)

 	d := newDeployment(foo)
@@ -313,5 +314,3 @@ func TestNotControlledByUs(t *testing.T) {

 	f.runExpectError(ctx, getRef(foo, t))
 }
-
-func int32Ptr(i int32) *int32 { return &i }
--- a/go.mod
+++ b/go.mod
@@ -2,59 +2,57 @@

 module k8s.io/sample-controller

-go 1.22.0
+go 1.25.0
+
+godebug default=go1.25

 require (
-	golang.org/x/time v0.3.0
-	k8s.io/api v0.31.2
-	k8s.io/apimachinery v0.31.2
-	k8s.io/client-go v0.31.2
-	k8s.io/code-generator v0.31.2
+	golang.org/x/time v0.14.0
+	k8s.io/api v0.0.0-20260212204713-44213e038791
+	k8s.io/apimachinery v0.0.0-20260212204335-aed281c35483
+	k8s.io/client-go v0.0.0-20260212205228-7aaede787267
+	k8s.io/code-generator v0.0.0-20260212210152-c9a3346aa756
 	k8s.io/klog/v2 v2.130.1
+	k8s.io/kube-openapi v0.0.0-20260127142750-a19766b6e2d4
+	k8s.io/utils v0.0.0-20260210185600-b8788abfbbc2
+	sigs.k8s.io/structured-merge-diff/v6 v6.3.2
 )

 require (
 	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
-	github.com/emicklei/go-restful/v3 v3.11.0 // indirect
-	github.com/fxamacker/cbor/v2 v2.7.0 // indirect
-	github.com/go-logr/logr v1.4.2 // indirect
-	github.com/go-openapi/jsonpointer v0.19.6 // indirect
+	github.com/emicklei/go-restful/v3 v3.13.0 // indirect
+	github.com/fxamacker/cbor/v2 v2.9.0 // indirect
+	github.com/go-logr/logr v1.4.3 // indirect
+	github.com/go-openapi/jsonpointer v0.21.0 // indirect
 	github.com/go-openapi/jsonreference v0.20.2 // indirect
-	github.com/go-openapi/swag v0.22.4 // indirect
-	github.com/gogo/protobuf v1.3.2 // indirect
-	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
-	github.com/golang/protobuf v1.5.4 // indirect
-	github.com/google/gnostic-models v0.6.8 // indirect
-	github.com/google/go-cmp v0.6.0 // indirect
-	github.com/google/gofuzz v1.2.0 // indirect
+	github.com/go-openapi/swag v0.23.0 // indirect
+	github.com/google/gnostic-models v0.7.0 // indirect
 	github.com/google/uuid v1.6.0 // indirect
-	github.com/imdario/mergo v0.3.6 // indirect
 	github.com/josharian/intern v1.0.0 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
 	github.com/mailru/easyjson v0.7.7 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
-	github.com/modern-go/reflect2 v1.0.2 // indirect
+	github.com/modern-go/reflect2 v1.0.3-0.20250322232337-35a7c28c31ee // indirect
 	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
-	github.com/pkg/errors v0.9.1 // indirect
-	github.com/spf13/pflag v1.0.5 // indirect
+	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
+	github.com/spf13/pflag v1.0.9 // indirect
 	github.com/x448/float16 v0.8.4 // indirect
-	golang.org/x/mod v0.17.0 // indirect
-	golang.org/x/net v0.26.0 // indirect
-	golang.org/x/oauth2 v0.21.0 // indirect
-	golang.org/x/sync v0.7.0 // indirect
-	golang.org/x/sys v0.21.0 // indirect
-	golang.org/x/term v0.21.0 // indirect
-	golang.org/x/text v0.16.0 // indirect
-	golang.org/x/tools v0.21.1-0.20240508182429-e35e4ccd0d2d // indirect
-	google.golang.org/protobuf v1.34.2 // indirect
-	gopkg.in/evanphx/json-patch.v4 v4.12.0 // indirect
+	go.yaml.in/yaml/v2 v2.4.3 // indirect
+	go.yaml.in/yaml/v3 v3.0.4 // indirect
+	golang.org/x/mod v0.32.0 // indirect
+	golang.org/x/net v0.49.0 // indirect
+	golang.org/x/oauth2 v0.34.0 // indirect
+	golang.org/x/sync v0.19.0 // indirect
+	golang.org/x/sys v0.40.0 // indirect
+	golang.org/x/term v0.39.0 // indirect
+	golang.org/x/text v0.33.0 // indirect
+	golang.org/x/tools v0.40.0 // indirect
+	google.golang.org/protobuf v1.36.11 // indirect
+	gopkg.in/evanphx/json-patch.v4 v4.13.0 // indirect
 	gopkg.in/inf.v0 v0.9.1 // indirect
-	gopkg.in/yaml.v2 v2.4.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
-	k8s.io/gengo/v2 v2.0.0-20240228010128-51d4e06bde70 // indirect
-	k8s.io/kube-openapi v0.0.0-20240228011516-70dd3763d340 // indirect
-	k8s.io/utils v0.0.0-20240711033017-18e509b52bc8 // indirect
-	sigs.k8s.io/json v0.0.0-20221116044647-bc3834ca7abd // indirect
-	sigs.k8s.io/structured-merge-diff/v4 v4.4.1 // indirect
-	sigs.k8s.io/yaml v1.4.0 // indirect
+	k8s.io/gengo/v2 v2.0.0-20250922181213-ec3ebc5fd46b // indirect
+	sigs.k8s.io/json v0.0.0-20250730193827-2d320260d730 // indirect
+	sigs.k8s.io/randfill v1.0.0 // indirect
+	sigs.k8s.io/yaml v1.6.0 // indirect
 )
--- a/go.sum
+++ b/go.sum
@@ -1,49 +1,39 @@
+github.com/Masterminds/semver/v3 v3.4.0 h1:Zog+i5UMtVoCU8oKka5P7i9q9HgrJeGzI9SA1Xbatp0=
+github.com/Masterminds/semver/v3 v3.4.0/go.mod h1:4V+yj/TJE1HU9XfppCwVMZq3I84lprf4nC11bSS5beM=
 github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc h1:U9qPSI2PIWSS1VwoXQT9A3Wy9MM3WgvqSxFWenqJduM=
 github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/emicklei/go-restful/v3 v3.11.0 h1:rAQeMHw1c7zTmncogyy8VvRZwtkmkZ4FxERmMY4rD+g=
-github.com/emicklei/go-restful/v3 v3.11.0/go.mod h1:6n3XBCmQQb25CM2LCACGz8ukIrRry+4bhvbpWn3mrbc=
-github.com/fxamacker/cbor/v2 v2.7.0 h1:iM5WgngdRBanHcxugY4JySA0nk1wZorNOpTgCMedv5E=
-github.com/fxamacker/cbor/v2 v2.7.0/go.mod h1:pxXPTn3joSm21Gbwsv0w9OSA2y1HFR9qXEeXQVeNoDQ=
-github.com/go-logr/logr v1.4.2 h1:6pFjapn8bFcIbiKo3XT4j/BhANplGihG6tvd+8rYgrY=
-github.com/go-logr/logr v1.4.2/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
-github.com/go-openapi/jsonpointer v0.19.6 h1:eCs3fxoIi3Wh6vtgmLTOjdhSpiqphQ+DaPn38N2ZdrE=
+github.com/emicklei/go-restful/v3 v3.13.0 h1:C4Bl2xDndpU6nJ4bc1jXd+uTmYPVUwkD6bFY/oTyCes=
+github.com/emicklei/go-restful/v3 v3.13.0/go.mod h1:6n3XBCmQQb25CM2LCACGz8ukIrRry+4bhvbpWn3mrbc=
+github.com/fxamacker/cbor/v2 v2.9.0 h1:NpKPmjDBgUfBms6tr6JZkTHtfFGcMKsw3eGcmD/sapM=
+github.com/fxamacker/cbor/v2 v2.9.0/go.mod h1:vM4b+DJCtHn+zz7h3FFp/hDAI9WNWCsZj23V5ytsSxQ=
+github.com/go-logr/logr v1.4.3 h1:CjnDlHq8ikf6E492q6eKboGOC0T8CDaOvkHCIg8idEI=
+github.com/go-logr/logr v1.4.3/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
 github.com/go-openapi/jsonpointer v0.19.6/go.mod h1:osyAmYz/mB/C3I+WsTTSgw1ONzaLJoLCyoi6/zppojs=
+github.com/go-openapi/jsonpointer v0.21.0 h1:YgdVicSA9vH5RiHs9TZW5oyafXZFc6+2Vc1rr/O9oNQ=
+github.com/go-openapi/jsonpointer v0.21.0/go.mod h1:IUyH9l/+uyhIYQ/PXVA41Rexl+kOkAPDdXEYns6fzUY=
 github.com/go-openapi/jsonreference v0.20.2 h1:3sVjiK66+uXK/6oQ8xgcRKcFgQ5KXa2KvnJRumpMGbE=
 github.com/go-openapi/jsonreference v0.20.2/go.mod h1:Bl1zwGIM8/wsvqjsOQLJ/SH+En5Ap4rVB5KVcIDZG2k=
 github.com/go-openapi/swag v0.22.3/go.mod h1:UzaqsxGiab7freDnrUUra0MwWfN/q7tE4j+VcZ0yl14=
-github.com/go-openapi/swag v0.22.4 h1:QLMzNJnMGPRNDCbySlcj1x01tzU8/9LTTL9hZZZogBU=
-github.com/go-openapi/swag v0.22.4/go.mod h1:UzaqsxGiab7freDnrUUra0MwWfN/q7tE4j+VcZ0yl14=
+github.com/go-openapi/swag v0.23.0 h1:vsEVJDUo2hPJ2tu0/Xc+4noaxyEffXNIs3cOULZ+GrE=
+github.com/go-openapi/swag v0.23.0/go.mod h1:esZ8ITTYEsH1V2trKHjAN8Ai7xHb8RV+YSZ577vPjgQ=
 github.com/go-task/slim-sprig/v3 v3.0.0 h1:sUs3vkvUymDpBKi3qH1YSqBQk9+9D/8M2mN1vB6EwHI=
 github.com/go-task/slim-sprig/v3 v3.0.0/go.mod h1:W848ghGpv3Qj3dhTPRyJypKRiqCdHZiAzKg9hl15HA8=
-github.com/gogo/protobuf v1.3.2 h1:Ov1cvc58UF3b5XjBnZv7+opcTcQFZebYjWzi34vdm4Q=
-github.com/gogo/protobuf v1.3.2/go.mod h1:P1XiOD3dCwIKUDQYPy72D8LYyHL2YPYrpS2s69NZV8Q=
-github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da h1:oI5xCqsCo564l8iNU+DwB5epxmsaqB+rhGL0m5jtYqE=
-github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
-github.com/golang/protobuf v1.5.4 h1:i7eJL8qZTpSEXOPTxNKhASYpMn+8e5Q6AdndVa1dWek=
-github.com/golang/protobuf v1.5.4/go.mod h1:lnTiLA8Wa4RWRcIUkrtSVa5nRhsEGBg48fD6rSs7xps=
-github.com/google/gnostic-models v0.6.8 h1:yo/ABAfM5IMRsS1VnXjTBvUb61tFIHozhlYvRgGre9I=
-github.com/google/gnostic-models v0.6.8/go.mod h1:5n7qKqH0f5wFt+aWF8CW6pZLLNOfYuF5OpfBSENuI8U=
-github.com/google/go-cmp v0.5.9/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
-github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
-github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
+github.com/google/gnostic-models v0.7.0 h1:qwTtogB15McXDaNqTZdzPJRHvaVJlAl+HVQnLmJEJxo=
+github.com/google/gnostic-models v0.7.0/go.mod h1:whL5G0m6dmc5cPxKc5bdKdEN3UjI7OUGxBlw57miDrQ=
+github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8=
+github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX3N/iU=
 github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
-github.com/google/gofuzz v1.2.0 h1:xRy4A+RhZaiKjJ1bPfwQ8sedCA+YS2YcCHW6ec7JMi0=
-github.com/google/gofuzz v1.2.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
-github.com/google/pprof v0.0.0-20240525223248-4bfdf5a9a2af h1:kmjWCqn2qkEml422C2Rrd27c3VGxi6a/6HNq8QmHRKM=
-github.com/google/pprof v0.0.0-20240525223248-4bfdf5a9a2af/go.mod h1:K1liHPHnj73Fdn/EKuT8nrFqBihUSKXoLYU0BuatOYo=
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+sigs.k8s.io/json v0.0.0-20250730193827-2d320260d730 h1:IpInykpT6ceI+QxKBbEflcR5EXP7sU1kvOlxwZh5txg=
+sigs.k8s.io/json v0.0.0-20250730193827-2d320260d730/go.mod h1:mdzfpAEoE6DHQEN0uh9ZbOCuHbLK5wOm7dK4ctXE9Tg=
+sigs.k8s.io/randfill v1.0.0 h1:JfjMILfT8A6RbawdsK2JXGBR5AQVfd+9TbzrlneTyrU=
+sigs.k8s.io/randfill v1.0.0/go.mod h1:XeLlZ/jmk4i1HRopwe7/aU3H5n1zNUcX6TM94b3QxOY=
+sigs.k8s.io/structured-merge-diff/v6 v6.3.2 h1:kwVWMx5yS1CrnFWA/2QHyRVJ8jM6dBA80uLmm0wJkk8=
+sigs.k8s.io/structured-merge-diff/v6 v6.3.2/go.mod h1:M3W8sfWvn2HhQDIbGWj3S099YozAsymCo/wrT5ohRUE=
+sigs.k8s.io/yaml v1.6.0 h1:G8fkbMSAFqgEFgh4b1wmtzDnioxFCUgTZhlbj5P9QYs=
+sigs.k8s.io/yaml v1.6.0/go.mod h1:796bPqUfzR/0jLAl6XjHl3Ck7MiyVv8dbTdyT3/pMf4=
--- a/hack/custom-boilerplate.go.txt
+++ b/hack/custom-boilerplate.go.txt
@@ -1,16 +0,0 @@
-/*
-Copyright YEAR The Kubernetes sample-controller Authors.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
--- a/hack/tools.go
+++ b/hack/tools.go
@@ -1,5 +1,4 @@
 //go:build tools
-// +build tools

 /*
 Copyright 2019 The Kubernetes Authors.
--- a/hack/update-codegen.sh
+++ b/hack/update-codegen.sh
@@ -29,8 +29,26 @@ kube::codegen::gen_helpers \
    --boilerplate "${SCRIPT_ROOT}/hack/boilerplate.go.txt" \
    "${SCRIPT_ROOT}/pkg/apis"

+if [[ -n "${API_KNOWN_VIOLATIONS_DIR:-}" ]]; then
+    report_filename="${API_KNOWN_VIOLATIONS_DIR}/sample_controller_violation_exceptions.list"
+    if [[ "${UPDATE_API_KNOWN_VIOLATIONS:-}" == "true" ]]; then
+        update_report="--update-report"
+    fi
+fi
+
+kube::codegen::gen_openapi \
+    --output-dir "${SCRIPT_ROOT}/pkg/generated/openapi" \
+    --output-pkg "k8s.io/${THIS_PKG}/pkg/generated/openapi" \
+    --report-filename "${report_filename:-"/dev/null"}" \
+    --output-model-name-file "zz_generated.model_name.go" \
+    ${update_report:+"${update_report}"} \
+    --boilerplate "${SCRIPT_ROOT}/hack/boilerplate.go.txt" \
+    "${SCRIPT_ROOT}/pkg/apis"
+
 kube::codegen::gen_client \
    --with-watch \
+    --with-applyconfig \
+    --applyconfig-openapi-schema <(go run k8s.io/sample-controller/pkg/generated/openapi/cmd/models-schema) \
    --output-dir "${SCRIPT_ROOT}/pkg/generated" \
    --output-pkg "${THIS_PKG}/pkg/generated" \
    --boilerplate "${SCRIPT_ROOT}/hack/boilerplate.go.txt" \
--- a/hack/verify-codegen.sh
+++ b/hack/verify-codegen.sh
@@ -29,6 +29,19 @@ trap "cleanup" EXIT SIGINT

 cleanup

+# Ensure model-schema generator matches the version from
+# k8s.io/kubernetes/pkg/generated/openapi/cmd/models-schema/main.go
+echo "Ensuring models-schema is up-to-date"
+K8S_MODELS_SCHEMA="${SCRIPT_ROOT}/../../../../pkg/generated/openapi/cmd/models-schema/main.go"
+SAMPLE_CONTROLLER_MODELS_SCHEMA="${SCRIPT_ROOT}/pkg/generated/openapi/cmd/models-schema/main.go"
+# these two files will only differ in the imported lines for generated openapi
+if ! diff -I "k8s.io/kubernetes/pkg/generated/openapi" \
+  -I "k8s.io/sample-controller/pkg/generated/openapi" \
+  "${K8S_MODELS_SCHEMA}" "${SAMPLE_CONTROLLER_MODELS_SCHEMA}"; then
+  echo "${SAMPLE_CONTROLLER_MODELS_SCHEMA} is out of date. Compare changes with ${K8S_MODELS_SCHEMA}"
+  exit 1
+fi
+
 mkdir -p "${TMP_DIFFROOT}"
 cp -a "${DIFFROOT}"/* "${TMP_DIFFROOT}"

@@ -40,5 +53,5 @@ if [[ $ret -eq 0 ]]; then
  echo "${DIFFROOT} up to date."
 else
  echo "${DIFFROOT} is out of date. Please run hack/update-codegen.sh"
-  exit 1
 fi
+exit $ret
--- a/pkg/apis/samplecontroller/v1alpha1/doc.go
+++ b/pkg/apis/samplecontroller/v1alpha1/doc.go
@@ -15,7 +15,8 @@ limitations under the License.
 */

 // +k8s:deepcopy-gen=package
+// +k8s:openapi-gen=true
 // +groupName=samplecontroller.k8s.io

 // Package v1alpha1 is the v1alpha1 version of the API.
-package v1alpha1 // import "k8s.io/sample-controller/pkg/apis/samplecontroller/v1alpha1"
+package v1alpha1
--- a/pkg/generated/applyconfiguration/internal/internal.go
+++ b/pkg/generated/applyconfiguration/internal/internal.go
@@ -0,0 +1,72 @@
+/*
+Copyright The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+// Code generated by applyconfiguration-gen. DO NOT EDIT.
+
+package internal
+
+import (
+	fmt "fmt"
+	sync "sync"
+
+	typed "sigs.k8s.io/structured-merge-diff/v6/typed"
+)
+
+func Parser() *typed.Parser {
+	parserOnce.Do(func() {
+		var err error
+		parser, err = typed.NewParser(schemaYAML)
+		if err != nil {
+			panic(fmt.Sprintf("Failed to parse schema: %v", err))
+		}
+	})
+	return parser
+}
+
+var parserOnce sync.Once
+var parser *typed.Parser
+var schemaYAML = typed.YAMLObject(`types:
+- name: io.k8s.sample-controller.pkg.apis.samplecontroller.v1alpha1.Foo
+  scalar: untyped
+  list:
+    elementType:
+      namedType: __untyped_atomic_
+    elementRelationship: atomic
+  map:
+    elementType:
+      namedType: __untyped_deduced_
+    elementRelationship: separable
+- name: __untyped_atomic_
+  scalar: untyped
+  list:
+    elementType:
+      namedType: __untyped_atomic_
+    elementRelationship: atomic
+  map:
+    elementType:
+      namedType: __untyped_atomic_
+    elementRelationship: atomic
+- name: __untyped_deduced_
+  scalar: untyped
+  list:
+    elementType:
+      namedType: __untyped_atomic_
+    elementRelationship: atomic
+  map:
+    elementType:
+      namedType: __untyped_deduced_
+    elementRelationship: separable
+`)
--- a/pkg/generated/applyconfiguration/samplecontroller/v1alpha1/foo.go
+++ b/pkg/generated/applyconfiguration/samplecontroller/v1alpha1/foo.go
@@ -0,0 +1,289 @@
+/*
+Copyright The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+// Code generated by applyconfiguration-gen. DO NOT EDIT.
+
+package v1alpha1
+
+import (
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	types "k8s.io/apimachinery/pkg/types"
+	managedfields "k8s.io/apimachinery/pkg/util/managedfields"
+	v1 "k8s.io/client-go/applyconfigurations/meta/v1"
+	samplecontrollerv1alpha1 "k8s.io/sample-controller/pkg/apis/samplecontroller/v1alpha1"
+	internal "k8s.io/sample-controller/pkg/generated/applyconfiguration/internal"
+)
+
+// FooApplyConfiguration represents a declarative configuration of the Foo type for use
+// with apply.
+//
+// Foo is a specification for a Foo resource
+type FooApplyConfiguration struct {
+	v1.TypeMetaApplyConfiguration    `json:",inline"`
+	*v1.ObjectMetaApplyConfiguration `json:"metadata,omitempty"`
+	Spec                             *FooSpecApplyConfiguration   `json:"spec,omitempty"`
+	Status                           *FooStatusApplyConfiguration `json:"status,omitempty"`
+}
+
+// Foo constructs a declarative configuration of the Foo type for use with
+// apply.
+func Foo(name, namespace string) *FooApplyConfiguration {
+	b := &FooApplyConfiguration{}
+	b.WithName(name)
+	b.WithNamespace(namespace)
+	b.WithKind("Foo")
+	b.WithAPIVersion("samplecontroller.k8s.io/v1alpha1")
+	return b
+}
+
+// ExtractFooFrom extracts the applied configuration owned by fieldManager from
+// foo for the specified subresource. Pass an empty string for subresource to extract
+// the main resource. Common subresources include "status", "scale", etc.
+// foo must be a unmodified Foo API object that was retrieved from the Kubernetes API.
+// ExtractFooFrom provides a way to perform a extract/modify-in-place/apply workflow.
+// Note that an extracted apply configuration will contain fewer fields than what the fieldManager previously
+// applied if another fieldManager has updated or force applied any of the previously applied fields.
+func ExtractFooFrom(foo *samplecontrollerv1alpha1.Foo, fieldManager string, subresource string) (*FooApplyConfiguration, error) {
+	b := &FooApplyConfiguration{}
+	err := managedfields.ExtractInto(foo, internal.Parser().Type("io.k8s.sample-controller.pkg.apis.samplecontroller.v1alpha1.Foo"), fieldManager, b, subresource)
+	if err != nil {
+		return nil, err
+	}
+	b.WithName(foo.Name)
+	b.WithNamespace(foo.Namespace)
+
+	b.WithKind("Foo")
+	b.WithAPIVersion("samplecontroller.k8s.io/v1alpha1")
+	return b, nil
+}
+
+// ExtractFoo extracts the applied configuration owned by fieldManager from
+// foo. If no managedFields are found in foo for fieldManager, a
+// FooApplyConfiguration is returned with only the Name, Namespace (if applicable),
+// APIVersion and Kind populated. It is possible that no managed fields were found for because other
+// field managers have taken ownership of all the fields previously owned by fieldManager, or because
+// the fieldManager never owned fields any fields.
+// foo must be a unmodified Foo API object that was retrieved from the Kubernetes API.
+// ExtractFoo provides a way to perform a extract/modify-in-place/apply workflow.
+// Note that an extracted apply configuration will contain fewer fields than what the fieldManager previously
+// applied if another fieldManager has updated or force applied any of the previously applied fields.
+func ExtractFoo(foo *samplecontrollerv1alpha1.Foo, fieldManager string) (*FooApplyConfiguration, error) {
+	return ExtractFooFrom(foo, fieldManager, "")
+}
+
+// ExtractFooStatus extracts the applied configuration owned by fieldManager from
+// foo for the status subresource.
+func ExtractFooStatus(foo *samplecontrollerv1alpha1.Foo, fieldManager string) (*FooApplyConfiguration, error) {
+	return ExtractFooFrom(foo, fieldManager, "status")
+}
+
+func (b FooApplyConfiguration) IsApplyConfiguration() {}
+
+// WithKind sets the Kind field in the declarative configuration to the given value
+// and returns the receiver, so that objects can be built by chaining "With" function invocations.
+// If called multiple times, the Kind field is set to the value of the last call.
+func (b *FooApplyConfiguration) WithKind(value string) *FooApplyConfiguration {
+	b.TypeMetaApplyConfiguration.Kind = &value
+	return b
+}
+
+// WithAPIVersion sets the APIVersion field in the declarative configuration to the given value
+// and returns the receiver, so that objects can be built by chaining "With" function invocations.
+// If called multiple times, the APIVersion field is set to the value of the last call.
+func (b *FooApplyConfiguration) WithAPIVersion(value string) *FooApplyConfiguration {
+	b.TypeMetaApplyConfiguration.APIVersion = &value
+	return b
+}
+
+// WithName sets the Name field in the declarative configuration to the given value
+// and returns the receiver, so that objects can be built by chaining "With" function invocations.
+// If called multiple times, the Name field is set to the value of the last call.
+func (b *FooApplyConfiguration) WithName(value string) *FooApplyConfiguration {
+	b.ensureObjectMetaApplyConfigurationExists()
+	b.ObjectMetaApplyConfiguration.Name = &value
+	return b
+}
+
+// WithGenerateName sets the GenerateName field in the declarative configuration to the given value
+// and returns the receiver, so that objects can be built by chaining "With" function invocations.
+// If called multiple times, the GenerateName field is set to the value of the last call.
+func (b *FooApplyConfiguration) WithGenerateName(value string) *FooApplyConfiguration {
+	b.ensureObjectMetaApplyConfigurationExists()
+	b.ObjectMetaApplyConfiguration.GenerateName = &value
+	return b
+}
+
+// WithNamespace sets the Namespace field in the declarative configuration to the given value
+// and returns the receiver, so that objects can be built by chaining "With" function invocations.
+// If called multiple times, the Namespace field is set to the value of the last call.
+func (b *FooApplyConfiguration) WithNamespace(value string) *FooApplyConfiguration {
+	b.ensureObjectMetaApplyConfigurationExists()
+	b.ObjectMetaApplyConfiguration.Namespace = &value
+	return b
+}
+
+// WithUID sets the UID field in the declarative configuration to the given value
+// and returns the receiver, so that objects can be built by chaining "With" function invocations.
+// If called multiple times, the UID field is set to the value of the last call.
+func (b *FooApplyConfiguration) WithUID(value types.UID) *FooApplyConfiguration {
+	b.ensureObjectMetaApplyConfigurationExists()
+	b.ObjectMetaApplyConfiguration.UID = &value
+	return b
+}
+
+// WithResourceVersion sets the ResourceVersion field in the declarative configuration to the given value
+// and returns the receiver, so that objects can be built by chaining "With" function invocations.
+// If called multiple times, the ResourceVersion field is set to the value of the last call.
+func (b *FooApplyConfiguration) WithResourceVersion(value string) *FooApplyConfiguration {
+	b.ensureObjectMetaApplyConfigurationExists()
+	b.ObjectMetaApplyConfiguration.ResourceVersion = &value
+	return b
+}
+
+// WithGeneration sets the Generation field in the declarative configuration to the given value
+// and returns the receiver, so that objects can be built by chaining "With" function invocations.
+// If called multiple times, the Generation field is set to the value of the last call.
+func (b *FooApplyConfiguration) WithGeneration(value int64) *FooApplyConfiguration {
+	b.ensureObjectMetaApplyConfigurationExists()
+	b.ObjectMetaApplyConfiguration.Generation = &value
+	return b
+}
+
+// WithCreationTimestamp sets the CreationTimestamp field in the declarative configuration to the given value
+// and returns the receiver, so that objects can be built by chaining "With" function invocations.
+// If called multiple times, the CreationTimestamp field is set to the value of the last call.
+func (b *FooApplyConfiguration) WithCreationTimestamp(value metav1.Time) *FooApplyConfiguration {
+	b.ensureObjectMetaApplyConfigurationExists()
+	b.ObjectMetaApplyConfiguration.CreationTimestamp = &value
+	return b
+}
+
+// WithDeletionTimestamp sets the DeletionTimestamp field in the declarative configuration to the given value
+// and returns the receiver, so that objects can be built by chaining "With" function invocations.
+// If called multiple times, the DeletionTimestamp field is set to the value of the last call.
+func (b *FooApplyConfiguration) WithDeletionTimestamp(value metav1.Time) *FooApplyConfiguration {
+	b.ensureObjectMetaApplyConfigurationExists()
+	b.ObjectMetaApplyConfiguration.DeletionTimestamp = &value
+	return b
+}
+
+// WithDeletionGracePeriodSeconds sets the DeletionGracePeriodSeconds field in the declarative configuration to the given value
+// and returns the receiver, so that objects can be built by chaining "With" function invocations.
+// If called multiple times, the DeletionGracePeriodSeconds field is set to the value of the last call.
+func (b *FooApplyConfiguration) WithDeletionGracePeriodSeconds(value int64) *FooApplyConfiguration {
+	b.ensureObjectMetaApplyConfigurationExists()
+	b.ObjectMetaApplyConfiguration.DeletionGracePeriodSeconds = &value
+	return b
+}
+
+// WithLabels puts the entries into the Labels field in the declarative configuration
+// and returns the receiver, so that objects can be build by chaining "With" function invocations.
+// If called multiple times, the entries provided by each call will be put on the Labels field,
+// overwriting an existing map entries in Labels field with the same key.
+func (b *FooApplyConfiguration) WithLabels(entries map[string]string) *FooApplyConfiguration {
+	b.ensureObjectMetaApplyConfigurationExists()
+	if b.ObjectMetaApplyConfiguration.Labels == nil && len(entries) > 0 {
+		b.ObjectMetaApplyConfiguration.Labels = make(map[string]string, len(entries))
+	}
+	for k, v := range entries {
+		b.ObjectMetaApplyConfiguration.Labels[k] = v
+	}
+	return b
+}
+
+// WithAnnotations puts the entries into the Annotations field in the declarative configuration
+// and returns the receiver, so that objects can be build by chaining "With" function invocations.
+// If called multiple times, the entries provided by each call will be put on the Annotations field,
+// overwriting an existing map entries in Annotations field with the same key.
+func (b *FooApplyConfiguration) WithAnnotations(entries map[string]string) *FooApplyConfiguration {
+	b.ensureObjectMetaApplyConfigurationExists()
+	if b.ObjectMetaApplyConfiguration.Annotations == nil && len(entries) > 0 {
+		b.ObjectMetaApplyConfiguration.Annotations = make(map[string]string, len(entries))
+	}
+	for k, v := range entries {
+		b.ObjectMetaApplyConfiguration.Annotations[k] = v
+	}
+	return b
+}
+
+// WithOwnerReferences adds the given value to the OwnerReferences field in the declarative configuration
+// and returns the receiver, so that objects can be build by chaining "With" function invocations.
+// If called multiple times, values provided by each call will be appended to the OwnerReferences field.
+func (b *FooApplyConfiguration) WithOwnerReferences(values ...*v1.OwnerReferenceApplyConfiguration) *FooApplyConfiguration {
+	b.ensureObjectMetaApplyConfigurationExists()
+	for i := range values {
+		if values[i] == nil {
+			panic("nil value passed to WithOwnerReferences")
+		}
+		b.ObjectMetaApplyConfiguration.OwnerReferences = append(b.ObjectMetaApplyConfiguration.OwnerReferences, *values[i])
+	}
+	return b
+}
+
+// WithFinalizers adds the given value to the Finalizers field in the declarative configuration
+// and returns the receiver, so that objects can be build by chaining "With" function invocations.
+// If called multiple times, values provided by each call will be appended to the Finalizers field.
+func (b *FooApplyConfiguration) WithFinalizers(values ...string) *FooApplyConfiguration {
+	b.ensureObjectMetaApplyConfigurationExists()
+	for i := range values {
+		b.ObjectMetaApplyConfiguration.Finalizers = append(b.ObjectMetaApplyConfiguration.Finalizers, values[i])
+	}
+	return b
+}
+
+func (b *FooApplyConfiguration) ensureObjectMetaApplyConfigurationExists() {
+	if b.ObjectMetaApplyConfiguration == nil {
+		b.ObjectMetaApplyConfiguration = &v1.ObjectMetaApplyConfiguration{}
+	}
+}
+
+// WithSpec sets the Spec field in the declarative configuration to the given value
+// and returns the receiver, so that objects can be built by chaining "With" function invocations.
+// If called multiple times, the Spec field is set to the value of the last call.
+func (b *FooApplyConfiguration) WithSpec(value *FooSpecApplyConfiguration) *FooApplyConfiguration {
+	b.Spec = value
+	return b
+}
+
+// WithStatus sets the Status field in the declarative configuration to the given value
+// and returns the receiver, so that objects can be built by chaining "With" function invocations.
+// If called multiple times, the Status field is set to the value of the last call.
+func (b *FooApplyConfiguration) WithStatus(value *FooStatusApplyConfiguration) *FooApplyConfiguration {
+	b.Status = value
+	return b
+}
+
+// GetKind retrieves the value of the Kind field in the declarative configuration.
+func (b *FooApplyConfiguration) GetKind() *string {
+	return b.TypeMetaApplyConfiguration.Kind
+}
+
+// GetAPIVersion retrieves the value of the APIVersion field in the declarative configuration.
+func (b *FooApplyConfiguration) GetAPIVersion() *string {
+	return b.TypeMetaApplyConfiguration.APIVersion
+}
+
+// GetName retrieves the value of the Name field in the declarative configuration.
+func (b *FooApplyConfiguration) GetName() *string {
+	b.ensureObjectMetaApplyConfigurationExists()
+	return b.ObjectMetaApplyConfiguration.Name
+}
+
+// GetNamespace retrieves the value of the Namespace field in the declarative configuration.
+func (b *FooApplyConfiguration) GetNamespace() *string {
+	b.ensureObjectMetaApplyConfigurationExists()
+	return b.ObjectMetaApplyConfiguration.Namespace
+}
--- a/pkg/generated/applyconfiguration/samplecontroller/v1alpha1/foospec.go
+++ b/pkg/generated/applyconfiguration/samplecontroller/v1alpha1/foospec.go
@@ -0,0 +1,50 @@
+/*
+Copyright The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+// Code generated by applyconfiguration-gen. DO NOT EDIT.
+
+package v1alpha1
+
+// FooSpecApplyConfiguration represents a declarative configuration of the FooSpec type for use
+// with apply.
+//
+// FooSpec is the spec for a Foo resource
+type FooSpecApplyConfiguration struct {
+	DeploymentName *string `json:"deploymentName,omitempty"`
+	Replicas       *int32  `json:"replicas,omitempty"`
+}
+
+// FooSpecApplyConfiguration constructs a declarative configuration of the FooSpec type for use with
+// apply.
+func FooSpec() *FooSpecApplyConfiguration {
+	return &FooSpecApplyConfiguration{}
+}
+
+// WithDeploymentName sets the DeploymentName field in the declarative configuration to the given value
+// and returns the receiver, so that objects can be built by chaining "With" function invocations.
+// If called multiple times, the DeploymentName field is set to the value of the last call.
+func (b *FooSpecApplyConfiguration) WithDeploymentName(value string) *FooSpecApplyConfiguration {
+	b.DeploymentName = &value
+	return b
+}
+
+// WithReplicas sets the Replicas field in the declarative configuration to the given value
+// and returns the receiver, so that objects can be built by chaining "With" function invocations.
+// If called multiple times, the Replicas field is set to the value of the last call.
+func (b *FooSpecApplyConfiguration) WithReplicas(value int32) *FooSpecApplyConfiguration {
+	b.Replicas = &value
+	return b
+}
--- a/pkg/generated/applyconfiguration/samplecontroller/v1alpha1/foostatus.go
+++ b/pkg/generated/applyconfiguration/samplecontroller/v1alpha1/foostatus.go
@@ -0,0 +1,41 @@
+/*
+Copyright The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+// Code generated by applyconfiguration-gen. DO NOT EDIT.
+
+package v1alpha1
+
+// FooStatusApplyConfiguration represents a declarative configuration of the FooStatus type for use
+// with apply.
+//
+// FooStatus is the status for a Foo resource
+type FooStatusApplyConfiguration struct {
+	AvailableReplicas *int32 `json:"availableReplicas,omitempty"`
+}
+
+// FooStatusApplyConfiguration constructs a declarative configuration of the FooStatus type for use with
+// apply.
+func FooStatus() *FooStatusApplyConfiguration {
+	return &FooStatusApplyConfiguration{}
+}
+
+// WithAvailableReplicas sets the AvailableReplicas field in the declarative configuration to the given value
+// and returns the receiver, so that objects can be built by chaining "With" function invocations.
+// If called multiple times, the AvailableReplicas field is set to the value of the last call.
+func (b *FooStatusApplyConfiguration) WithAvailableReplicas(value int32) *FooStatusApplyConfiguration {
+	b.AvailableReplicas = &value
+	return b
+}
--- a/pkg/generated/applyconfiguration/utils.go
+++ b/pkg/generated/applyconfiguration/utils.go
@@ -0,0 +1,48 @@
+/*
+Copyright The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+// Code generated by applyconfiguration-gen. DO NOT EDIT.
+
+package applyconfiguration
+
+import (
+	runtime "k8s.io/apimachinery/pkg/runtime"
+	schema "k8s.io/apimachinery/pkg/runtime/schema"
+	managedfields "k8s.io/apimachinery/pkg/util/managedfields"
+	v1alpha1 "k8s.io/sample-controller/pkg/apis/samplecontroller/v1alpha1"
+	internal "k8s.io/sample-controller/pkg/generated/applyconfiguration/internal"
+	samplecontrollerv1alpha1 "k8s.io/sample-controller/pkg/generated/applyconfiguration/samplecontroller/v1alpha1"
+)
+
+// ForKind returns an apply configuration type for the given GroupVersionKind, or nil if no
+// apply configuration type exists for the given GroupVersionKind.
+func ForKind(kind schema.GroupVersionKind) interface{} {
+	switch kind {
+	// Group=samplecontroller.k8s.io, Version=v1alpha1
+	case v1alpha1.SchemeGroupVersion.WithKind("Foo"):
+		return &samplecontrollerv1alpha1.FooApplyConfiguration{}
+	case v1alpha1.SchemeGroupVersion.WithKind("FooSpec"):
+		return &samplecontrollerv1alpha1.FooSpecApplyConfiguration{}
+	case v1alpha1.SchemeGroupVersion.WithKind("FooStatus"):
+		return &samplecontrollerv1alpha1.FooStatusApplyConfiguration{}
+
+	}
+	return nil
+}
+
+func NewTypeConverter(scheme *runtime.Scheme) managedfields.TypeConverter {
+	return managedfields.NewSchemeTypeConverter(scheme, internal.Parser())
+}
--- a/pkg/generated/clientset/versioned/clientset.go
+++ b/pkg/generated/clientset/versioned/clientset.go
@@ -19,8 +19,8 @@ limitations under the License.
 package versioned

 import (
-	"fmt"
-	"net/http"
+	fmt "fmt"
+	http "net/http"

 	discovery "k8s.io/client-go/discovery"
 	rest "k8s.io/client-go/rest"
--- a/pkg/generated/clientset/versioned/fake/clientset_generated.go
+++ b/pkg/generated/clientset/versioned/fake/clientset_generated.go
@@ -19,11 +19,13 @@ limitations under the License.
 package fake

 import (
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/apimachinery/pkg/watch"
 	"k8s.io/client-go/discovery"
 	fakediscovery "k8s.io/client-go/discovery/fake"
 	"k8s.io/client-go/testing"
+	applyconfiguration "k8s.io/sample-controller/pkg/generated/applyconfiguration"
 	clientset "k8s.io/sample-controller/pkg/generated/clientset/versioned"
 	samplecontrollerv1alpha1 "k8s.io/sample-controller/pkg/generated/clientset/versioned/typed/samplecontroller/v1alpha1"
 	fakesamplecontrollerv1alpha1 "k8s.io/sample-controller/pkg/generated/clientset/versioned/typed/samplecontroller/v1alpha1/fake"
@@ -33,10 +35,6 @@ import (
 // It's backed by a very simple object tracker that processes creates, updates and deletions as-is,
 // without applying any field management, validations and/or defaults. It shouldn't be considered a replacement
 // for a real clientset and is mostly useful in simple unit tests.
-//
-// DEPRECATED: NewClientset replaces this with support for field management, which significantly improves
-// server side apply testing. NewClientset is only available when apply configurations are generated (e.g.
-// via --with-applyconfig).
 func NewSimpleClientset(objects ...runtime.Object) *Clientset {
 	o := testing.NewObjectTracker(scheme, codecs.UniversalDecoder())
 	for _, obj := range objects {
@@ -49,9 +47,13 @@ func NewSimpleClientset(objects ...runtime.Object) *Clientset {
 	cs.discovery = &fakediscovery.FakeDiscovery{Fake: &cs.Fake}
 	cs.AddReactor("*", "*", testing.ObjectReaction(o))
 	cs.AddWatchReactor("*", func(action testing.Action) (handled bool, ret watch.Interface, err error) {
+		var opts metav1.ListOptions
+		if watchAction, ok := action.(testing.WatchActionImpl); ok {
+			opts = watchAction.ListOptions
+		}
 		gvr := action.GetResource()
 		ns := action.GetNamespace()
-		watch, err := o.Watch(gvr, ns)
+		watch, err := o.Watch(gvr, ns, opts)
 		if err != nil {
 			return false, nil, err
 		}
@@ -78,6 +80,57 @@ func (c *Clientset) Tracker() testing.ObjectTracker {
 	return c.tracker
 }

+// IsWatchListSemanticsSupported informs the reflector that this client
+// doesn't support WatchList semantics.
+//
+// This is a synthetic method whose sole purpose is to satisfy the optional
+// interface check performed by the reflector.
+// Returning true signals that WatchList can NOT be used.
+// No additional logic is implemented here.
+func (c *Clientset) IsWatchListSemanticsUnSupported() bool {
+	return true
+}
+
+// NewClientset returns a clientset that will respond with the provided objects.
+// It's backed by a very simple object tracker that processes creates, updates and deletions as-is,
+// without applying any validations and/or defaults. It shouldn't be considered a replacement
+// for a real clientset and is mostly useful in simple unit tests.
+//
+// Compared to NewSimpleClientset, the Clientset returned here supports field tracking and thus
+// server-side apply. Beware though that support in that for CRDs is missing
+// (https://github.com/kubernetes/kubernetes/issues/126850).
+func NewClientset(objects ...runtime.Object) *Clientset {
+	o := testing.NewFieldManagedObjectTracker(
+		scheme,
+		codecs.UniversalDecoder(),
+		applyconfiguration.NewTypeConverter(scheme),
+	)
+	for _, obj := range objects {
+		if err := o.Add(obj); err != nil {
+			panic(err)
+		}
+	}
+
+	cs := &Clientset{tracker: o}
+	cs.discovery = &fakediscovery.FakeDiscovery{Fake: &cs.Fake}
+	cs.AddReactor("*", "*", testing.ObjectReaction(o))
+	cs.AddWatchReactor("*", func(action testing.Action) (handled bool, ret watch.Interface, err error) {
+		var opts metav1.ListOptions
+		if watchAction, ok := action.(testing.WatchActionImpl); ok {
+			opts = watchAction.ListOptions
+		}
+		gvr := action.GetResource()
+		ns := action.GetNamespace()
+		watch, err := o.Watch(gvr, ns, opts)
+		if err != nil {
+			return false, nil, err
+		}
+		return true, watch, nil
+	})
+
+	return cs
+}
+
 var (
 	_ clientset.Interface = &Clientset{}
 	_ testing.FakeClient  = &Clientset{}
--- a/pkg/generated/clientset/versioned/typed/samplecontroller/v1alpha1/fake/fake_foo.go
+++ b/pkg/generated/clientset/versioned/typed/samplecontroller/v1alpha1/fake/fake_foo.go
@@ -19,129 +19,31 @@ limitations under the License.
 package fake

 import (
-	"context"
-
-	v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	labels "k8s.io/apimachinery/pkg/labels"
-	types "k8s.io/apimachinery/pkg/types"
-	watch "k8s.io/apimachinery/pkg/watch"
-	testing "k8s.io/client-go/testing"
+	gentype "k8s.io/client-go/gentype"
 	v1alpha1 "k8s.io/sample-controller/pkg/apis/samplecontroller/v1alpha1"
+	samplecontrollerv1alpha1 "k8s.io/sample-controller/pkg/generated/applyconfiguration/samplecontroller/v1alpha1"
+	typedsamplecontrollerv1alpha1 "k8s.io/sample-controller/pkg/generated/clientset/versioned/typed/samplecontroller/v1alpha1"
 )

-// FakeFoos implements FooInterface
-type FakeFoos struct {
+// fakeFoos implements FooInterface
+type fakeFoos struct {
+	*gentype.FakeClientWithListAndApply[*v1alpha1.Foo, *v1alpha1.FooList, *samplecontrollerv1alpha1.FooApplyConfiguration]
 	Fake *FakeSamplecontrollerV1alpha1
-	ns   string
 }

-var foosResource = v1alpha1.SchemeGroupVersion.WithResource("foos")
-
-var foosKind = v1alpha1.SchemeGroupVersion.WithKind("Foo")
-
-// Get takes name of the foo, and returns the corresponding foo object, and an error if there is any.
-func (c *FakeFoos) Get(ctx context.Context, name string, options v1.GetOptions) (result *v1alpha1.Foo, err error) {
-	emptyResult := &v1alpha1.Foo{}
-	obj, err := c.Fake.
-		Invokes(testing.NewGetActionWithOptions(foosResource, c.ns, name, options), emptyResult)
-
-	if obj == nil {
-		return emptyResult, err
+func newFakeFoos(fake *FakeSamplecontrollerV1alpha1, namespace string) typedsamplecontrollerv1alpha1.FooInterface {
+	return &fakeFoos{
+		gentype.NewFakeClientWithListAndApply[*v1alpha1.Foo, *v1alpha1.FooList, *samplecontrollerv1alpha1.FooApplyConfiguration](
+			fake.Fake,
+			namespace,
+			v1alpha1.SchemeGroupVersion.WithResource("foos"),
+			v1alpha1.SchemeGroupVersion.WithKind("Foo"),
+			func() *v1alpha1.Foo { return &v1alpha1.Foo{} },
+			func() *v1alpha1.FooList { return &v1alpha1.FooList{} },
+			func(dst, src *v1alpha1.FooList) { dst.ListMeta = src.ListMeta },
+			func(list *v1alpha1.FooList) []*v1alpha1.Foo { return gentype.ToPointerSlice(list.Items) },
+			func(list *v1alpha1.FooList, items []*v1alpha1.Foo) { list.Items = gentype.FromPointerSlice(items) },
+		),
+		fake,
 	}
-	return obj.(*v1alpha1.Foo), err
-}
-
-// List takes label and field selectors, and returns the list of Foos that match those selectors.
-func (c *FakeFoos) List(ctx context.Context, opts v1.ListOptions) (result *v1alpha1.FooList, err error) {
-	emptyResult := &v1alpha1.FooList{}
-	obj, err := c.Fake.
-		Invokes(testing.NewListActionWithOptions(foosResource, foosKind, c.ns, opts), emptyResult)
-
-	if obj == nil {
-		return emptyResult, err
-	}
-
-	label, _, _ := testing.ExtractFromListOptions(opts)
-	if label == nil {
-		label = labels.Everything()
-	}
-	list := &v1alpha1.FooList{ListMeta: obj.(*v1alpha1.FooList).ListMeta}
-	for _, item := range obj.(*v1alpha1.FooList).Items {
-		if label.Matches(labels.Set(item.Labels)) {
-			list.Items = append(list.Items, item)
-		}
-	}
-	return list, err
-}
-
-// Watch returns a watch.Interface that watches the requested foos.
-func (c *FakeFoos) Watch(ctx context.Context, opts v1.ListOptions) (watch.Interface, error) {
-	return c.Fake.
-		InvokesWatch(testing.NewWatchActionWithOptions(foosResource, c.ns, opts))
-
-}
-
-// Create takes the representation of a foo and creates it.  Returns the server's representation of the foo, and an error, if there is any.
-func (c *FakeFoos) Create(ctx context.Context, foo *v1alpha1.Foo, opts v1.CreateOptions) (result *v1alpha1.Foo, err error) {
-	emptyResult := &v1alpha1.Foo{}
-	obj, err := c.Fake.
-		Invokes(testing.NewCreateActionWithOptions(foosResource, c.ns, foo, opts), emptyResult)
-
-	if obj == nil {
-		return emptyResult, err
-	}
-	return obj.(*v1alpha1.Foo), err
-}
-
-// Update takes the representation of a foo and updates it. Returns the server's representation of the foo, and an error, if there is any.
-func (c *FakeFoos) Update(ctx context.Context, foo *v1alpha1.Foo, opts v1.UpdateOptions) (result *v1alpha1.Foo, err error) {
-	emptyResult := &v1alpha1.Foo{}
-	obj, err := c.Fake.
-		Invokes(testing.NewUpdateActionWithOptions(foosResource, c.ns, foo, opts), emptyResult)
-
-	if obj == nil {
-		return emptyResult, err
-	}
-	return obj.(*v1alpha1.Foo), err
-}
-
-// UpdateStatus was generated because the type contains a Status member.
-// Add a +genclient:noStatus comment above the type to avoid generating UpdateStatus().
-func (c *FakeFoos) UpdateStatus(ctx context.Context, foo *v1alpha1.Foo, opts v1.UpdateOptions) (result *v1alpha1.Foo, err error) {
-	emptyResult := &v1alpha1.Foo{}
-	obj, err := c.Fake.
-		Invokes(testing.NewUpdateSubresourceActionWithOptions(foosResource, "status", c.ns, foo, opts), emptyResult)
-
-	if obj == nil {
-		return emptyResult, err
-	}
-	return obj.(*v1alpha1.Foo), err
-}
-
-// Delete takes name of the foo and deletes it. Returns an error if one occurs.
-func (c *FakeFoos) Delete(ctx context.Context, name string, opts v1.DeleteOptions) error {
-	_, err := c.Fake.
-		Invokes(testing.NewDeleteActionWithOptions(foosResource, c.ns, name, opts), &v1alpha1.Foo{})
-
-	return err
-}
-
-// DeleteCollection deletes a collection of objects.
-func (c *FakeFoos) DeleteCollection(ctx context.Context, opts v1.DeleteOptions, listOpts v1.ListOptions) error {
-	action := testing.NewDeleteCollectionActionWithOptions(foosResource, c.ns, opts, listOpts)
-
-	_, err := c.Fake.Invokes(action, &v1alpha1.FooList{})
-	return err
-}
-
-// Patch applies the patch and returns the patched foo.
-func (c *FakeFoos) Patch(ctx context.Context, name string, pt types.PatchType, data []byte, opts v1.PatchOptions, subresources ...string) (result *v1alpha1.Foo, err error) {
-	emptyResult := &v1alpha1.Foo{}
-	obj, err := c.Fake.
-		Invokes(testing.NewPatchSubresourceActionWithOptions(foosResource, c.ns, name, pt, data, opts, subresources...), emptyResult)
-
-	if obj == nil {
-		return emptyResult, err
-	}
-	return obj.(*v1alpha1.Foo), err
 }
--- a/pkg/generated/clientset/versioned/typed/samplecontroller/v1alpha1/fake/fake_samplecontroller_client.go
+++ b/pkg/generated/clientset/versioned/typed/samplecontroller/v1alpha1/fake/fake_samplecontroller_client.go
@@ -29,7 +29,7 @@ type FakeSamplecontrollerV1alpha1 struct {
 }

 func (c *FakeSamplecontrollerV1alpha1) Foos(namespace string) v1alpha1.FooInterface {
-	return &FakeFoos{c, namespace}
+	return newFakeFoos(c, namespace)
 }

 // RESTClient returns a RESTClient that is used to communicate
--- a/pkg/generated/clientset/versioned/typed/samplecontroller/v1alpha1/foo.go
+++ b/pkg/generated/clientset/versioned/typed/samplecontroller/v1alpha1/foo.go
@@ -19,13 +19,14 @@ limitations under the License.
 package v1alpha1

 import (
-	"context"
+	context "context"

 	v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	types "k8s.io/apimachinery/pkg/types"
 	watch "k8s.io/apimachinery/pkg/watch"
 	gentype "k8s.io/client-go/gentype"
-	v1alpha1 "k8s.io/sample-controller/pkg/apis/samplecontroller/v1alpha1"
+	samplecontrollerv1alpha1 "k8s.io/sample-controller/pkg/apis/samplecontroller/v1alpha1"
+	applyconfigurationsamplecontrollerv1alpha1 "k8s.io/sample-controller/pkg/generated/applyconfiguration/samplecontroller/v1alpha1"
 	scheme "k8s.io/sample-controller/pkg/generated/clientset/versioned/scheme"
 )

@@ -37,33 +38,37 @@ type FoosGetter interface {

 // FooInterface has methods to work with Foo resources.
 type FooInterface interface {
-	Create(ctx context.Context, foo *v1alpha1.Foo, opts v1.CreateOptions) (*v1alpha1.Foo, error)
-	Update(ctx context.Context, foo *v1alpha1.Foo, opts v1.UpdateOptions) (*v1alpha1.Foo, error)
+	Create(ctx context.Context, foo *samplecontrollerv1alpha1.Foo, opts v1.CreateOptions) (*samplecontrollerv1alpha1.Foo, error)
+	Update(ctx context.Context, foo *samplecontrollerv1alpha1.Foo, opts v1.UpdateOptions) (*samplecontrollerv1alpha1.Foo, error)
 	// Add a +genclient:noStatus comment above the type to avoid generating UpdateStatus().
-	UpdateStatus(ctx context.Context, foo *v1alpha1.Foo, opts v1.UpdateOptions) (*v1alpha1.Foo, error)
+	UpdateStatus(ctx context.Context, foo *samplecontrollerv1alpha1.Foo, opts v1.UpdateOptions) (*samplecontrollerv1alpha1.Foo, error)
 	Delete(ctx context.Context, name string, opts v1.DeleteOptions) error
 	DeleteCollection(ctx context.Context, opts v1.DeleteOptions, listOpts v1.ListOptions) error
-	Get(ctx context.Context, name string, opts v1.GetOptions) (*v1alpha1.Foo, error)
-	List(ctx context.Context, opts v1.ListOptions) (*v1alpha1.FooList, error)
+	Get(ctx context.Context, name string, opts v1.GetOptions) (*samplecontrollerv1alpha1.Foo, error)
+	List(ctx context.Context, opts v1.ListOptions) (*samplecontrollerv1alpha1.FooList, error)
 	Watch(ctx context.Context, opts v1.ListOptions) (watch.Interface, error)
-	Patch(ctx context.Context, name string, pt types.PatchType, data []byte, opts v1.PatchOptions, subresources ...string) (result *v1alpha1.Foo, err error)
+	Patch(ctx context.Context, name string, pt types.PatchType, data []byte, opts v1.PatchOptions, subresources ...string) (result *samplecontrollerv1alpha1.Foo, err error)
+	Apply(ctx context.Context, foo *applyconfigurationsamplecontrollerv1alpha1.FooApplyConfiguration, opts v1.ApplyOptions) (result *samplecontrollerv1alpha1.Foo, err error)
+	// Add a +genclient:noStatus comment above the type to avoid generating ApplyStatus().
+	ApplyStatus(ctx context.Context, foo *applyconfigurationsamplecontrollerv1alpha1.FooApplyConfiguration, opts v1.ApplyOptions) (result *samplecontrollerv1alpha1.Foo, err error)
 	FooExpansion
 }

 // foos implements FooInterface
 type foos struct {
-	*gentype.ClientWithList[*v1alpha1.Foo, *v1alpha1.FooList]
+	*gentype.ClientWithListAndApply[*samplecontrollerv1alpha1.Foo, *samplecontrollerv1alpha1.FooList, *applyconfigurationsamplecontrollerv1alpha1.FooApplyConfiguration]
 }

 // newFoos returns a Foos
 func newFoos(c *SamplecontrollerV1alpha1Client, namespace string) *foos {
 	return &foos{
-		gentype.NewClientWithList[*v1alpha1.Foo, *v1alpha1.FooList](
+		gentype.NewClientWithListAndApply[*samplecontrollerv1alpha1.Foo, *samplecontrollerv1alpha1.FooList, *applyconfigurationsamplecontrollerv1alpha1.FooApplyConfiguration](
 			"foos",
 			c.RESTClient(),
 			scheme.ParameterCodec,
 			namespace,
-			func() *v1alpha1.Foo { return &v1alpha1.Foo{} },
-			func() *v1alpha1.FooList { return &v1alpha1.FooList{} }),
+			func() *samplecontrollerv1alpha1.Foo { return &samplecontrollerv1alpha1.Foo{} },
+			func() *samplecontrollerv1alpha1.FooList { return &samplecontrollerv1alpha1.FooList{} },
+		),
 	}
 }
--- a/pkg/generated/clientset/versioned/typed/samplecontroller/v1alpha1/samplecontroller_client.go
+++ b/pkg/generated/clientset/versioned/typed/samplecontroller/v1alpha1/samplecontroller_client.go
@@ -19,11 +19,11 @@ limitations under the License.
 package v1alpha1

 import (
-	"net/http"
+	http "net/http"

 	rest "k8s.io/client-go/rest"
-	v1alpha1 "k8s.io/sample-controller/pkg/apis/samplecontroller/v1alpha1"
-	"k8s.io/sample-controller/pkg/generated/clientset/versioned/scheme"
+	samplecontrollerv1alpha1 "k8s.io/sample-controller/pkg/apis/samplecontroller/v1alpha1"
+	scheme "k8s.io/sample-controller/pkg/generated/clientset/versioned/scheme"
 )

 type SamplecontrollerV1alpha1Interface interface {
@@ -45,9 +45,7 @@ func (c *SamplecontrollerV1alpha1Client) Foos(namespace string) FooInterface {
 // where httpClient was generated with rest.HTTPClientFor(c).
 func NewForConfig(c *rest.Config) (*SamplecontrollerV1alpha1Client, error) {
 	config := *c
-	if err := setConfigDefaults(&config); err != nil {
-		return nil, err
-	}
+	setConfigDefaults(&config)
 	httpClient, err := rest.HTTPClientFor(&config)
 	if err != nil {
 		return nil, err
@@ -59,9 +57,7 @@ func NewForConfig(c *rest.Config) (*SamplecontrollerV1alpha1Client, error) {
 // Note the http client provided takes precedence over the configured transport values.
 func NewForConfigAndClient(c *rest.Config, h *http.Client) (*SamplecontrollerV1alpha1Client, error) {
 	config := *c
-	if err := setConfigDefaults(&config); err != nil {
-		return nil, err
-	}
+	setConfigDefaults(&config)
 	client, err := rest.RESTClientForConfigAndClient(&config, h)
 	if err != nil {
 		return nil, err
@@ -84,17 +80,15 @@ func New(c rest.Interface) *SamplecontrollerV1alpha1Client {
 	return &SamplecontrollerV1alpha1Client{c}
 }

-func setConfigDefaults(config *rest.Config) error {
-	gv := v1alpha1.SchemeGroupVersion
+func setConfigDefaults(config *rest.Config) {
+	gv := samplecontrollerv1alpha1.SchemeGroupVersion
 	config.GroupVersion = &gv
 	config.APIPath = "/apis"
-	config.NegotiatedSerializer = scheme.Codecs.WithoutConversion()
+	config.NegotiatedSerializer = rest.CodecFactoryForGeneratedClient(scheme.Scheme, scheme.Codecs).WithoutConversion()

 	if config.UserAgent == "" {
 		config.UserAgent = rest.DefaultKubernetesUserAgent()
 	}
-
-	return nil
 }

 // RESTClient returns a RESTClient that is used to communicate
--- a/pkg/generated/informers/externalversions/factory.go
+++ b/pkg/generated/informers/externalversions/factory.go
@@ -19,6 +19,7 @@ limitations under the License.
 package externalversions

 import (
+	context "context"
 	reflect "reflect"
 	sync "sync"
 	time "time"
@@ -26,6 +27,7 @@ import (
 	v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	runtime "k8s.io/apimachinery/pkg/runtime"
 	schema "k8s.io/apimachinery/pkg/runtime/schema"
+	wait "k8s.io/apimachinery/pkg/util/wait"
 	cache "k8s.io/client-go/tools/cache"
 	versioned "k8s.io/sample-controller/pkg/generated/clientset/versioned"
 	internalinterfaces "k8s.io/sample-controller/pkg/generated/informers/externalversions/internalinterfaces"
@@ -43,6 +45,7 @@ type sharedInformerFactory struct {
 	defaultResync    time.Duration
 	customResync     map[reflect.Type]time.Duration
 	transform        cache.TransformFunc
+	informerName     *cache.InformerName

 	informers map[reflect.Type]cache.SharedIndexInformer
 	// startedInformers is used for tracking which informers have been started.
@@ -89,6 +92,21 @@ func WithTransform(transform cache.TransformFunc) SharedInformerOption {
 	}
 }

+// WithInformerName sets the InformerName for informer identity used in metrics.
+// The InformerName must be created via cache.NewInformerName() at startup,
+// which validates global uniqueness. Each informer type will register its
+// GVR under this name.
+func WithInformerName(informerName *cache.InformerName) SharedInformerOption {
+	return func(factory *sharedInformerFactory) *sharedInformerFactory {
+		factory.informerName = informerName
+		return factory
+	}
+}
+
+func (f *sharedInformerFactory) InformerName() *cache.InformerName {
+	return f.informerName
+}
+
 // NewSharedInformerFactory constructs a new instance of sharedInformerFactory for all namespaces.
 func NewSharedInformerFactory(client versioned.Interface, defaultResync time.Duration) SharedInformerFactory {
 	return NewSharedInformerFactoryWithOptions(client, defaultResync)
@@ -97,6 +115,7 @@ func NewSharedInformerFactory(client versioned.Interface, defaultResync time.Dur
 // NewFilteredSharedInformerFactory constructs a new instance of sharedInformerFactory.
 // Listers obtained via this SharedInformerFactory will be subject to the same filters
 // as specified here.
+//
 // Deprecated: Please use NewSharedInformerFactoryWithOptions instead
 func NewFilteredSharedInformerFactory(client versioned.Interface, defaultResync time.Duration, namespace string, tweakListOptions internalinterfaces.TweakListOptionsFunc) SharedInformerFactory {
 	return NewSharedInformerFactoryWithOptions(client, defaultResync, WithNamespace(namespace), WithTweakListOptions(tweakListOptions))
@@ -122,6 +141,10 @@ func NewSharedInformerFactoryWithOptions(client versioned.Interface, defaultResy
 }

 func (f *sharedInformerFactory) Start(stopCh <-chan struct{}) {
+	f.StartWithContext(wait.ContextForChannel(stopCh))
+}
+
+func (f *sharedInformerFactory) StartWithContext(ctx context.Context) {
 	f.lock.Lock()
 	defer f.lock.Unlock()

@@ -131,15 +154,9 @@ func (f *sharedInformerFactory) Start(stopCh <-chan struct{}) {

 	for informerType, informer := range f.informers {
 		if !f.startedInformers[informerType] {
-			f.wg.Add(1)
-			// We need a new variable in each loop iteration,
-			// otherwise the goroutine would use the loop variable
-			// and that keeps changing.
-			informer := informer
-			go func() {
-				defer f.wg.Done()
-				informer.Run(stopCh)
-			}()
+			f.wg.Go(func() {
+				informer.RunWithContext(ctx)
+			})
 			f.startedInformers[informerType] = true
 		}
 	}
@@ -152,9 +169,15 @@ func (f *sharedInformerFactory) Shutdown() {

 	// Will return immediately if there is nothing to wait for.
 	f.wg.Wait()
+	f.informerName.Release()
 }

 func (f *sharedInformerFactory) WaitForCacheSync(stopCh <-chan struct{}) map[reflect.Type]bool {
+	result := f.WaitForCacheSyncWithContext(wait.ContextForChannel(stopCh))
+	return result.Synced
+}
+
+func (f *sharedInformerFactory) WaitForCacheSyncWithContext(ctx context.Context) cache.SyncResult {
 	informers := func() map[reflect.Type]cache.SharedIndexInformer {
 		f.lock.Lock()
 		defer f.lock.Unlock()
@@ -168,10 +191,31 @@ func (f *sharedInformerFactory) WaitForCacheSync(stopCh <-chan struct{}) map[ref
 		return informers
 	}()

-	res := map[reflect.Type]bool{}
-	for informType, informer := range informers {
-		res[informType] = cache.WaitForCacheSync(stopCh, informer.HasSynced)
+	// Wait for informers to sync, without polling.
+	cacheSyncs := make([]cache.DoneChecker, 0, len(informers))
+	for _, informer := range informers {
+		cacheSyncs = append(cacheSyncs, informer.HasSyncedChecker())
 	}
+	cache.WaitFor(ctx, "" /* no logging */, cacheSyncs...)
+
+	res := cache.SyncResult{
+		Synced: make(map[reflect.Type]bool, len(informers)),
+	}
+	failed := false
+	for informType, informer := range informers {
+		hasSynced := informer.HasSynced()
+		if !hasSynced {
+			failed = true
+		}
+		res.Synced[informType] = hasSynced
+	}
+	if failed {
+		// context.Cause is more informative than ctx.Err().
+		// This must be non-nil, otherwise WaitFor wouldn't have stopped
+		// prematurely.
+		res.Err = context.Cause(ctx)
+	}
+
 	return res
 }

@@ -204,33 +248,52 @@ func (f *sharedInformerFactory) InformerFor(obj runtime.Object, newFunc internal
 //
 // It is typically used like this:
 //
-//	ctx, cancel := context.Background()
+//	ctx, cancel := context.WithCancel(context.Background())
 //	defer cancel()
 //	factory := NewSharedInformerFactory(client, resyncPeriod)
 //	defer factory.WaitForStop()    // Returns immediately if nothing was started.
 //	genericInformer := factory.ForResource(resource)
 //	typedInformer := factory.SomeAPIGroup().V1().SomeType()
-//	factory.Start(ctx.Done())          // Start processing these informers.
-//	synced := factory.WaitForCacheSync(ctx.Done())
-//	for v, ok := range synced {
-//	    if !ok {
-//	        fmt.Fprintf(os.Stderr, "caches failed to sync: %v", v)
-//	        return
-//	    }
+//	handle, err := typeInformer.Informer().AddEventHandler(...)
+//	if err != nil {
+//	    return fmt.Errorf("register event handler: %v", err)
+//	}
+//	defer typeInformer.Informer().RemoveEventHandler(handle) // Avoids leaking goroutines.
+//	factory.StartWithContext(ctx)                            // Start processing these informers.
+//	synced := factory.WaitForCacheSyncWithContext(ctx)
+//	if err := synced.AsError(); err != nil {
+//	    return err
+//	}
+//	for v := range synced {
+//	    // Only if desired log some information similar to this.
+//	    fmt.Fprintf(os.Stdout, "cache synced: %s", v)
+//	}
+//
+//	// Also make sure that all of the initial cache events have been delivered.
+//	if !WaitFor(ctx, "event handler sync", handle.HasSyncedChecker()) {
+//	    // Must have failed because of context.
+//	    return fmt.Errorf("sync event handler: %w", context.Cause(ctx))
 //	}
 //
 //	// Creating informers can also be created after Start, but then
 //	// Start must be called again:
 //	anotherGenericInformer := factory.ForResource(resource)
-//	factory.Start(ctx.Done())
+//	factory.StartWithContext(ctx)
 type SharedInformerFactory interface {
 	internalinterfaces.SharedInformerFactory

 	// Start initializes all requested informers. They are handled in goroutines
 	// which run until the stop channel gets closed.
 	// Warning: Start does not block. When run in a go-routine, it will race with a later WaitForCacheSync.
+	//
+	// Contextual logging: StartWithContext should be used instead of Start in code which supports contextual logging.
 	Start(stopCh <-chan struct{})

+	// StartWithContext initializes all requested informers. They are handled in goroutines
+	// which run until the context gets canceled.
+	// Warning: StartWithContext does not block. When run in a go-routine, it will race with a later WaitForCacheSync.
+	StartWithContext(ctx context.Context)
+
 	// Shutdown marks a factory as shutting down. At that point no new
 	// informers can be started anymore and Start will return without
 	// doing anything.
@@ -245,8 +308,14 @@ type SharedInformerFactory interface {

 	// WaitForCacheSync blocks until all started informers' caches were synced
 	// or the stop channel gets closed.
+	//
+	// Contextual logging: WaitForCacheSync should be used instead of WaitForCacheSync in code which supports contextual logging. It also returns a more useful result.
 	WaitForCacheSync(stopCh <-chan struct{}) map[reflect.Type]bool

+	// WaitForCacheSyncWithContext blocks until all started informers' caches were synced
+	// or the context gets canceled.
+	WaitForCacheSyncWithContext(ctx context.Context) cache.SyncResult
+
 	// ForResource gives generic access to a shared informer of the matching type.
 	ForResource(resource schema.GroupVersionResource) (GenericInformer, error)

--- a/pkg/generated/informers/externalversions/generic.go
+++ b/pkg/generated/informers/externalversions/generic.go
@@ -19,7 +19,7 @@ limitations under the License.
 package externalversions

 import (
-	"fmt"
+	fmt "fmt"

 	schema "k8s.io/apimachinery/pkg/runtime/schema"
 	cache "k8s.io/client-go/tools/cache"
--- a/pkg/generated/informers/externalversions/internalinterfaces/factory_interfaces.go
+++ b/pkg/generated/informers/externalversions/internalinterfaces/factory_interfaces.go
@@ -34,7 +34,26 @@ type NewInformerFunc func(versioned.Interface, time.Duration) cache.SharedIndexI
 type SharedInformerFactory interface {
 	Start(stopCh <-chan struct{})
 	InformerFor(obj runtime.Object, newFunc NewInformerFunc) cache.SharedIndexInformer
+	InformerName() *cache.InformerName
 }

 // TweakListOptionsFunc is a function that transforms a v1.ListOptions.
 type TweakListOptionsFunc func(*v1.ListOptions)
+
+// InformerOptions holds the options for creating an informer.
+type InformerOptions struct {
+	// ResyncPeriod is the resync period for this informer.
+	// If not set, defaults to 0 (no resync).
+	ResyncPeriod time.Duration
+
+	// Indexers are the indexers for this informer.
+	Indexers cache.Indexers
+
+	// InformerName is used to uniquely identify this informer for metrics.
+	// If not set, metrics will not be published for this informer.
+	// Use cache.NewInformerName() to create an InformerName at startup.
+	InformerName *cache.InformerName
+
+	// TweakListOptions is an optional function to modify the list options.
+	TweakListOptions TweakListOptionsFunc
+}
--- a/pkg/generated/informers/externalversions/samplecontroller/v1alpha1/foo.go
+++ b/pkg/generated/informers/externalversions/samplecontroller/v1alpha1/foo.go
@@ -19,24 +19,25 @@ limitations under the License.
 package v1alpha1

 import (
-	"context"
+	context "context"
 	time "time"

 	v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	runtime "k8s.io/apimachinery/pkg/runtime"
+	schema "k8s.io/apimachinery/pkg/runtime/schema"
 	watch "k8s.io/apimachinery/pkg/watch"
 	cache "k8s.io/client-go/tools/cache"
-	samplecontrollerv1alpha1 "k8s.io/sample-controller/pkg/apis/samplecontroller/v1alpha1"
+	apissamplecontrollerv1alpha1 "k8s.io/sample-controller/pkg/apis/samplecontroller/v1alpha1"
 	versioned "k8s.io/sample-controller/pkg/generated/clientset/versioned"
 	internalinterfaces "k8s.io/sample-controller/pkg/generated/informers/externalversions/internalinterfaces"
-	v1alpha1 "k8s.io/sample-controller/pkg/generated/listers/samplecontroller/v1alpha1"
+	samplecontrollerv1alpha1 "k8s.io/sample-controller/pkg/generated/listers/samplecontroller/v1alpha1"
 )

 // FooInformer provides access to a shared informer and lister for
 // Foos.
 type FooInformer interface {
 	Informer() cache.SharedIndexInformer
-	Lister() v1alpha1.FooLister
+	Lister() samplecontrollerv1alpha1.FooLister
 }

 type fooInformer struct {
@@ -49,42 +50,67 @@ type fooInformer struct {
 // Always prefer using an informer factory to get a shared informer instead of getting an independent
 // one. This reduces memory footprint and number of connections to the server.
 func NewFooInformer(client versioned.Interface, namespace string, resyncPeriod time.Duration, indexers cache.Indexers) cache.SharedIndexInformer {
-	return NewFilteredFooInformer(client, namespace, resyncPeriod, indexers, nil)
+	return NewFooInformerWithOptions(client, namespace, internalinterfaces.InformerOptions{ResyncPeriod: resyncPeriod, Indexers: indexers})
 }

 // NewFilteredFooInformer constructs a new informer for Foo type.
 // Always prefer using an informer factory to get a shared informer instead of getting an independent
 // one. This reduces memory footprint and number of connections to the server.
 func NewFilteredFooInformer(client versioned.Interface, namespace string, resyncPeriod time.Duration, indexers cache.Indexers, tweakListOptions internalinterfaces.TweakListOptionsFunc) cache.SharedIndexInformer {
-	return cache.NewSharedIndexInformer(
-		&cache.ListWatch{
-			ListFunc: func(options v1.ListOptions) (runtime.Object, error) {
+	return NewFooInformerWithOptions(client, namespace, internalinterfaces.InformerOptions{ResyncPeriod: resyncPeriod, Indexers: indexers, TweakListOptions: tweakListOptions})
+}
+
+// NewFooInformerWithOptions constructs a new informer for Foo type with additional options.
+// Always prefer using an informer factory to get a shared informer instead of getting an independent
+// one. This reduces memory footprint and number of connections to the server.
+func NewFooInformerWithOptions(client versioned.Interface, namespace string, options internalinterfaces.InformerOptions) cache.SharedIndexInformer {
+	gvr := schema.GroupVersionResource{Group: "samplecontroller.k8s.io", Version: "v1alpha1", Resource: "foos"}
+	identifier := options.InformerName.WithResource(gvr)
+	tweakListOptions := options.TweakListOptions
+	return cache.NewSharedIndexInformerWithOptions(
+		cache.ToListWatcherWithWatchListSemantics(&cache.ListWatch{
+			ListFunc: func(opts v1.ListOptions) (runtime.Object, error) {
 				if tweakListOptions != nil {
-					tweakListOptions(&options)
+					tweakListOptions(&opts)
 				}
-				return client.SamplecontrollerV1alpha1().Foos(namespace).List(context.TODO(), options)
+				return client.SamplecontrollerV1alpha1().Foos(namespace).List(context.Background(), opts)
 			},
-			WatchFunc: func(options v1.ListOptions) (watch.Interface, error) {
+			WatchFunc: func(opts v1.ListOptions) (watch.Interface, error) {
 				if tweakListOptions != nil {
-					tweakListOptions(&options)
+					tweakListOptions(&opts)
 				}
-				return client.SamplecontrollerV1alpha1().Foos(namespace).Watch(context.TODO(), options)
+				return client.SamplecontrollerV1alpha1().Foos(namespace).Watch(context.Background(), opts)
 			},
+			ListWithContextFunc: func(ctx context.Context, opts v1.ListOptions) (runtime.Object, error) {
+				if tweakListOptions != nil {
+					tweakListOptions(&opts)
+				}
+				return client.SamplecontrollerV1alpha1().Foos(namespace).List(ctx, opts)
+			},
+			WatchFuncWithContext: func(ctx context.Context, opts v1.ListOptions) (watch.Interface, error) {
+				if tweakListOptions != nil {
+					tweakListOptions(&opts)
+				}
+				return client.SamplecontrollerV1alpha1().Foos(namespace).Watch(ctx, opts)
+			},
+		}, client),
+		&apissamplecontrollerv1alpha1.Foo{},
+		cache.SharedIndexInformerOptions{
+			ResyncPeriod: options.ResyncPeriod,
+			Indexers:     options.Indexers,
+			Identifier:   identifier,
 		},
-		&samplecontrollerv1alpha1.Foo{},
-		resyncPeriod,
-		indexers,
 	)
 }

 func (f *fooInformer) defaultInformer(client versioned.Interface, resyncPeriod time.Duration) cache.SharedIndexInformer {
-	return NewFilteredFooInformer(client, f.namespace, resyncPeriod, cache.Indexers{cache.NamespaceIndex: cache.MetaNamespaceIndexFunc}, f.tweakListOptions)
+	return NewFooInformerWithOptions(client, f.namespace, internalinterfaces.InformerOptions{ResyncPeriod: resyncPeriod, Indexers: cache.Indexers{cache.NamespaceIndex: cache.MetaNamespaceIndexFunc}, InformerName: f.factory.InformerName(), TweakListOptions: f.tweakListOptions})
 }

 func (f *fooInformer) Informer() cache.SharedIndexInformer {
-	return f.factory.InformerFor(&samplecontrollerv1alpha1.Foo{}, f.defaultInformer)
+	return f.factory.InformerFor(&apissamplecontrollerv1alpha1.Foo{}, f.defaultInformer)
 }

-func (f *fooInformer) Lister() v1alpha1.FooLister {
-	return v1alpha1.NewFooLister(f.Informer().GetIndexer())
+func (f *fooInformer) Lister() samplecontrollerv1alpha1.FooLister {
+	return samplecontrollerv1alpha1.NewFooLister(f.Informer().GetIndexer())
 }
--- a/pkg/generated/listers/samplecontroller/v1alpha1/foo.go
+++ b/pkg/generated/listers/samplecontroller/v1alpha1/foo.go
@@ -19,10 +19,10 @@ limitations under the License.
 package v1alpha1

 import (
-	"k8s.io/apimachinery/pkg/labels"
-	"k8s.io/client-go/listers"
-	"k8s.io/client-go/tools/cache"
-	v1alpha1 "k8s.io/sample-controller/pkg/apis/samplecontroller/v1alpha1"
+	labels "k8s.io/apimachinery/pkg/labels"
+	listers "k8s.io/client-go/listers"
+	cache "k8s.io/client-go/tools/cache"
+	samplecontrollerv1alpha1 "k8s.io/sample-controller/pkg/apis/samplecontroller/v1alpha1"
 )

 // FooLister helps list Foos.
@@ -30,7 +30,7 @@ import (
 type FooLister interface {
 	// List lists all Foos in the indexer.
 	// Objects returned here must be treated as read-only.
-	List(selector labels.Selector) (ret []*v1alpha1.Foo, err error)
+	List(selector labels.Selector) (ret []*samplecontrollerv1alpha1.Foo, err error)
 	// Foos returns an object that can list and get Foos.
 	Foos(namespace string) FooNamespaceLister
 	FooListerExpansion
@@ -38,17 +38,17 @@ type FooLister interface {

 // fooLister implements the FooLister interface.
 type fooLister struct {
-	listers.ResourceIndexer[*v1alpha1.Foo]
+	listers.ResourceIndexer[*samplecontrollerv1alpha1.Foo]
 }

 // NewFooLister returns a new FooLister.
 func NewFooLister(indexer cache.Indexer) FooLister {
-	return &fooLister{listers.New[*v1alpha1.Foo](indexer, v1alpha1.Resource("foo"))}
+	return &fooLister{listers.New[*samplecontrollerv1alpha1.Foo](indexer, samplecontrollerv1alpha1.Resource("foo"))}
 }

 // Foos returns an object that can list and get Foos.
 func (s *fooLister) Foos(namespace string) FooNamespaceLister {
-	return fooNamespaceLister{listers.NewNamespaced[*v1alpha1.Foo](s.ResourceIndexer, namespace)}
+	return fooNamespaceLister{listers.NewNamespaced[*samplecontrollerv1alpha1.Foo](s.ResourceIndexer, namespace)}
 }

 // FooNamespaceLister helps list and get Foos.
@@ -56,15 +56,15 @@ func (s *fooLister) Foos(namespace string) FooNamespaceLister {
 type FooNamespaceLister interface {
 	// List lists all Foos in the indexer for a given namespace.
 	// Objects returned here must be treated as read-only.
-	List(selector labels.Selector) (ret []*v1alpha1.Foo, err error)
+	List(selector labels.Selector) (ret []*samplecontrollerv1alpha1.Foo, err error)
 	// Get retrieves the Foo from the indexer for a given namespace and name.
 	// Objects returned here must be treated as read-only.
-	Get(name string) (*v1alpha1.Foo, error)
+	Get(name string) (*samplecontrollerv1alpha1.Foo, error)
 	FooNamespaceListerExpansion
 }

 // fooNamespaceLister implements the FooNamespaceLister
 // interface.
 type fooNamespaceLister struct {
-	listers.ResourceIndexer[*v1alpha1.Foo]
+	listers.ResourceIndexer[*samplecontrollerv1alpha1.Foo]
 }
--- a/pkg/generated/openapi/cmd/models-schema/main.go
+++ b/pkg/generated/openapi/cmd/models-schema/main.go
@@ -0,0 +1,76 @@
+/*
+Copyright 2021 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"os"
+
+	"k8s.io/kube-openapi/pkg/common"
+	"k8s.io/kube-openapi/pkg/validation/spec"
+	"k8s.io/sample-controller/pkg/generated/openapi"
+)
+
+// Outputs openAPI schema JSON containing the schema definitions in zz_generated.openapi.go.
+func main() {
+	err := output()
+	if err != nil {
+		os.Stderr.WriteString(fmt.Sprintf("Failed: %v", err)) // nolint:errcheck
+		os.Exit(1)
+	}
+}
+
+func output() error {
+	refFunc := func(name string) spec.Ref {
+		return spec.MustCreateRef(fmt.Sprintf("#/definitions/%s", name))
+	}
+	defs := openapi.GetOpenAPIDefinitions(refFunc)
+	schemaDefs := make(map[string]spec.Schema, len(defs))
+	for k, v := range defs {
+		// Replace top-level schema with v2 if a v2 schema is embedded
+		// so that the output of this program is always in OpenAPI v2.
+		// This is done by looking up an extension that marks the embedded v2
+		// schema, and, if the v2 schema is found, make it the resulting schema for
+		// the type.
+		if schema, ok := v.Schema.Extensions[common.ExtensionV2Schema]; ok {
+			if v2Schema, isOpenAPISchema := schema.(spec.Schema); isOpenAPISchema {
+				schemaDefs[k] = v2Schema
+				continue
+			}
+		}
+
+		schemaDefs[k] = v.Schema
+	}
+	data, err := json.Marshal(&spec.Swagger{
+		SwaggerProps: spec.SwaggerProps{
+			Definitions: schemaDefs,
+			Info: &spec.Info{
+				InfoProps: spec.InfoProps{
+					Title:   "Kubernetes",
+					Version: "unversioned",
+				},
+			},
+			Swagger: "2.0",
+		},
+	})
+	if err != nil {
+		return fmt.Errorf("error serializing api definitions: %w", err)
+	}
+	os.Stdout.Write(data) // nolint:errcheck
+	return nil
+}
--- a/pkg/generated/openapi/zz_generated.openapi.go
+++ b/pkg/generated/openapi/zz_generated.openapi.go
--- a/pkg/signals/signal_posix.go
+++ b/pkg/signals/signal_posix.go
@@ -1,5 +1,4 @@
 //go:build !windows
-// +build !windows

 /*
 Copyright 2017 The Kubernetes Authors.