Merge pull request kubernetes#74678 from pmcalpine/lint-bs_cj

Fix some golint failures for pkg/controller

Author: k8s-ci-robot

cmd/kube-controller-manager/app/batch.go

@@ -46,7 +46,7 @@ func startCronJobController(ctx ControllerContext) (http.Handler, bool, error) {
 	if !ctx.AvailableResources[schema.GroupVersionResource{Group: "batch", Version: "v1beta1", Resource: "cronjobs"}] {
 		return nil, false, nil
 	}
-	cjc, err := cronjob.NewCronJobController(
+	cjc, err := cronjob.NewController(
 		ctx.ClientBuilder.ClientOrDie("cronjob-controller"),
 	)
 	if err != nil {

cmd/kube-controller-manager/app/bootstrap.go

@@ -25,11 +25,11 @@ import (
 )
 
 func startBootstrapSignerController(ctx ControllerContext) (http.Handler, bool, error) {
-	bsc, err := bootstrap.NewBootstrapSigner(
+	bsc, err := bootstrap.NewSigner(
 		ctx.ClientBuilder.ClientOrDie("bootstrap-signer"),
 		ctx.InformerFactory.Core().V1().Secrets(),
 		ctx.InformerFactory.Core().V1().ConfigMaps(),
-		bootstrap.DefaultBootstrapSignerOptions(),
+		bootstrap.DefaultSignerOptions(),
 	)
 	if err != nil {
 		return nil, true, fmt.Errorf("error creating BootstrapSigner controller: %v", err)

hack/.golint_failures

@@ -73,14 +73,12 @@ pkg/cloudprovider/providers/photon
 pkg/cloudprovider/providers/vsphere
 pkg/controller
 pkg/controller/apis/config/v1alpha1
-pkg/controller/bootstrap
 pkg/controller/certificates
 pkg/controller/certificates/approver
 pkg/controller/certificates/signer
 pkg/controller/certificates/signer/config/v1alpha1
 pkg/controller/cloud
 pkg/controller/clusterroleaggregation
-pkg/controller/cronjob
 pkg/controller/daemon
 pkg/controller/daemon/config/v1alpha1
 pkg/controller/deployment

pkg/controller/bootstrap/bootstrapsigner.go

@@ -39,8 +39,8 @@ import (
 	"k8s.io/kubernetes/pkg/util/metrics"
 )
 
-// BootstrapSignerOptions contains options for the BootstrapSigner
-type BootstrapSignerOptions struct {
+// SignerOptions contains options for the Signer
+type SignerOptions struct {
 	// ConfigMapNamespace is the namespace of the ConfigMap
 	ConfigMapNamespace string
 
@@ -59,18 +59,17 @@ type BootstrapSignerOptions struct {
 	SecretResync time.Duration
 }
 
-// DefaultBootstrapSignerOptions returns a set of default options for creating a
-// BootstrapSigner
-func DefaultBootstrapSignerOptions() BootstrapSignerOptions {
-	return BootstrapSignerOptions{
+// DefaultSignerOptions returns a set of default options for creating a Signer.
+func DefaultSignerOptions() SignerOptions {
+	return SignerOptions{
 		ConfigMapNamespace:   api.NamespacePublic,
 		ConfigMapName:        bootstrapapi.ConfigMapClusterInfo,
 		TokenSecretNamespace: api.NamespaceSystem,
 	}
 }
 
-// BootstrapSigner is a controller that signs a ConfigMap with a set of tokens.
-type BootstrapSigner struct {
+// Signer is a controller that signs a ConfigMap with a set of tokens.
+type Signer struct {
 	client             clientset.Interface
 	configMapKey       string
 	configMapName      string
@@ -90,9 +89,9 @@ type BootstrapSigner struct {
 	configMapSynced cache.InformerSynced
 }
 
-// NewBootstrapSigner returns a new *BootstrapSigner.
-func NewBootstrapSigner(cl clientset.Interface, secrets informers.SecretInformer, configMaps informers.ConfigMapInformer, options BootstrapSignerOptions) (*BootstrapSigner, error) {
-	e := &BootstrapSigner{
+// NewSigner returns a new *Signer.
+func NewSigner(cl clientset.Interface, secrets informers.SecretInformer, configMaps informers.ConfigMapInformer, options SignerOptions) (*Signer, error) {
+	e := &Signer{
 		client:             cl,
 		configMapKey:       options.ConfigMapNamespace + "/" + options.ConfigMapName,
 		configMapName:      options.ConfigMapName,
@@ -153,7 +152,7 @@ func NewBootstrapSigner(cl clientset.Interface, secrets informers.SecretInformer
 }
 
 // Run runs controller loops and returns when they are done
-func (e *BootstrapSigner) Run(stopCh <-chan struct{}) {
+func (e *Signer) Run(stopCh <-chan struct{}) {
 	// Shut down queues
 	defer utilruntime.HandleCrash()
 	defer e.syncQueue.ShutDown()
@@ -168,11 +167,11 @@ func (e *BootstrapSigner) Run(stopCh <-chan struct{}) {
 	klog.V(1).Infof("Shutting down")
 }
 
-func (e *BootstrapSigner) pokeConfigMapSync() {
+func (e *Signer) pokeConfigMapSync() {
 	e.syncQueue.Add(e.configMapKey)
 }
 
-func (e *BootstrapSigner) serviceConfigMapQueue() {
+func (e *Signer) serviceConfigMapQueue() {
 	key, quit := e.syncQueue.Get()
 	if quit {
 		return
@@ -184,7 +183,7 @@ func (e *BootstrapSigner) serviceConfigMapQueue() {
 
 // signConfigMap computes the signatures on our latest cached objects and writes
 // back if necessary.
-func (e *BootstrapSigner) signConfigMap() {
+func (e *Signer) signConfigMap() {
 	origCM := e.getConfigMap()
 
 	if origCM == nil {
@@ -241,15 +240,15 @@ func (e *BootstrapSigner) signConfigMap() {
 	}
 }
 
-func (e *BootstrapSigner) updateConfigMap(cm *v1.ConfigMap) {
+func (e *Signer) updateConfigMap(cm *v1.ConfigMap) {
 	_, err := e.client.CoreV1().ConfigMaps(cm.Namespace).Update(cm)
 	if err != nil && !apierrors.IsConflict(err) && !apierrors.IsNotFound(err) {
 		klog.V(3).Infof("Error updating ConfigMap: %v", err)
 	}
 }
 
 // getConfigMap gets the ConfigMap we are interested in
-func (e *BootstrapSigner) getConfigMap() *v1.ConfigMap {
+func (e *Signer) getConfigMap() *v1.ConfigMap {
 	configMap, err := e.configMapLister.ConfigMaps(e.configMapNamespace).Get(e.configMapName)
 
 	// If we can't get the configmap just return nil. The resync will eventually
@@ -264,7 +263,7 @@ func (e *BootstrapSigner) getConfigMap() *v1.ConfigMap {
 	return configMap
 }
 
-func (e *BootstrapSigner) listSecrets() []*v1.Secret {
+func (e *Signer) listSecrets() []*v1.Secret {
 	secrets, err := e.secretLister.Secrets(e.secretNamespace).List(labels.Everything())
 	if err != nil {
 		utilruntime.HandleError(err)
@@ -282,7 +281,7 @@ func (e *BootstrapSigner) listSecrets() []*v1.Secret {
 
 // getTokens returns a map of tokenID->tokenSecret. It ensures the token is
 // valid for signing.
-func (e *BootstrapSigner) getTokens() map[string]string {
+func (e *Signer) getTokens() map[string]string {
 	ret := map[string]string{}
 	secretObjs := e.listSecrets()
 	for _, secret := range secretObjs {

pkg/controller/bootstrap/bootstrapsigner_test.go

@@ -39,13 +39,13 @@ func init() {
 
 const testTokenID = "abc123"
 
-func newBootstrapSigner() (*BootstrapSigner, *fake.Clientset, coreinformers.SecretInformer, coreinformers.ConfigMapInformer, error) {
-	options := DefaultBootstrapSignerOptions()
+func newSigner() (*Signer, *fake.Clientset, coreinformers.SecretInformer, coreinformers.ConfigMapInformer, error) {
+	options := DefaultSignerOptions()
 	cl := fake.NewSimpleClientset()
 	informers := informers.NewSharedInformerFactory(fake.NewSimpleClientset(), controller.NoResyncPeriodFunc())
 	secrets := informers.Core().V1().Secrets()
 	configMaps := informers.Core().V1().ConfigMaps()
-	bsc, err := NewBootstrapSigner(cl, secrets, configMaps, options)
+	bsc, err := NewSigner(cl, secrets, configMaps, options)
 	if err != nil {
 		return nil, nil, nil, nil, err
 	}
@@ -70,18 +70,18 @@ func newConfigMap(tokenID, signature string) *v1.ConfigMap {
 }
 
 func TestNoConfigMap(t *testing.T) {
-	signer, cl, _, _, err := newBootstrapSigner()
+	signer, cl, _, _, err := newSigner()
 	if err != nil {
-		t.Fatalf("error creating BootstrapSigner: %v", err)
+		t.Fatalf("error creating Signer: %v", err)
 	}
 	signer.signConfigMap()
 	verifyActions(t, []core.Action{}, cl.Actions())
 }
 
 func TestSimpleSign(t *testing.T) {
-	signer, cl, secrets, configMaps, err := newBootstrapSigner()
+	signer, cl, secrets, configMaps, err := newSigner()
 	if err != nil {
-		t.Fatalf("error creating BootstrapSigner: %v", err)
+		t.Fatalf("error creating Signer: %v", err)
 	}
 
 	cm := newConfigMap("", "")
@@ -103,9 +103,9 @@ func TestSimpleSign(t *testing.T) {
 }
 
 func TestNoSignNeeded(t *testing.T) {
-	signer, cl, secrets, configMaps, err := newBootstrapSigner()
+	signer, cl, secrets, configMaps, err := newSigner()
 	if err != nil {
-		t.Fatalf("error creating BootstrapSigner: %v", err)
+		t.Fatalf("error creating Signer: %v", err)
 	}
 
 	cm := newConfigMap(testTokenID, "eyJhbGciOiJIUzI1NiIsImtpZCI6ImFiYzEyMyJ9..QSxpUG7Q542CirTI2ECPSZjvBOJURUW5a7XqFpNI958")
@@ -121,9 +121,9 @@ func TestNoSignNeeded(t *testing.T) {
 }
 
 func TestUpdateSignature(t *testing.T) {
-	signer, cl, secrets, configMaps, err := newBootstrapSigner()
+	signer, cl, secrets, configMaps, err := newSigner()
 	if err != nil {
-		t.Fatalf("error creating BootstrapSigner: %v", err)
+		t.Fatalf("error creating Signer: %v", err)
 	}
 
 	cm := newConfigMap(testTokenID, "old signature")
@@ -145,9 +145,9 @@ func TestUpdateSignature(t *testing.T) {
 }
 
 func TestRemoveSignature(t *testing.T) {
-	signer, cl, _, configMaps, err := newBootstrapSigner()
+	signer, cl, _, configMaps, err := newSigner()
 	if err != nil {
-		t.Fatalf("error creating BootstrapSigner: %v", err)
+		t.Fatalf("error creating Signer: %v", err)
 	}
 
 	cm := newConfigMap(testTokenID, "old signature")

pkg/controller/cronjob/BUILD

@@ -9,7 +9,7 @@ load(
 go_library(
     name = "go_default_library",
     srcs = [
-        "cronjob_controller.go",
+        "controller.go",
         "doc.go",
         "injection.go",
         "utils.go",
@@ -41,7 +41,7 @@ go_library(
 go_test(
     name = "go_default_test",
     srcs = [
-        "cronjob_controller_test.go",
+        "controller_test.go",
         "utils_test.go",
     ],
     embed = [":go_default_library"],

pkg/controller/cronjob/cronjob_controller.go renamed to pkg/controller/cronjob/controller.go

@@ -58,15 +58,17 @@ import (
 // controllerKind contains the schema.GroupVersionKind for this controller type.
 var controllerKind = batchv1beta1.SchemeGroupVersion.WithKind("CronJob")
 
-type CronJobController struct {
+// Controller is a controller for CronJobs.
+type Controller struct {
 	kubeClient clientset.Interface
 	jobControl jobControlInterface
 	sjControl  sjControlInterface
 	podControl podControlInterface
 	recorder   record.EventRecorder
 }
 
-func NewCronJobController(kubeClient clientset.Interface) (*CronJobController, error) {
+// NewController creates and initializes a new Controller.
+func NewController(kubeClient clientset.Interface) (*Controller, error) {
 	eventBroadcaster := record.NewBroadcaster()
 	eventBroadcaster.StartLogging(klog.Infof)
 	eventBroadcaster.StartRecordingToSink(&v1core.EventSinkImpl{Interface: kubeClient.CoreV1().Events("")})
@@ -77,7 +79,7 @@ func NewCronJobController(kubeClient clientset.Interface) (*CronJobController, e
 		}
 	}
 
-	jm := &CronJobController{
+	jm := &Controller{
 		kubeClient: kubeClient,
 		jobControl: realJobControl{KubeClient: kubeClient},
 		sjControl:  &realSJControl{KubeClient: kubeClient},
@@ -88,8 +90,8 @@ func NewCronJobController(kubeClient clientset.Interface) (*CronJobController, e
 	return jm, nil
 }
 
-// Run the main goroutine responsible for watching and syncing jobs.
-func (jm *CronJobController) Run(stopCh <-chan struct{}) {
+// Run starts the main goroutine responsible for watching and syncing jobs.
+func (jm *Controller) Run(stopCh <-chan struct{}) {
 	defer utilruntime.HandleCrash()
 	klog.Infof("Starting CronJob Manager")
 	// Check things every 10 second.
@@ -99,7 +101,7 @@ func (jm *CronJobController) Run(stopCh <-chan struct{}) {
 }
 
 // syncAll lists all the CronJobs and Jobs and reconciles them.
-func (jm *CronJobController) syncAll() {
+func (jm *Controller) syncAll() {
 	// List children (Jobs) before parents (CronJob).
 	// This guarantees that if we see any Job that got orphaned by the GC orphan finalizer,
 	// we must also see that the parent CronJob has non-nil DeletionTimestamp (see #42639).

pkg/controller/cronjob/cronjob_controller_test.go renamed to pkg/controller/cronjob/controller_test.go

@@ -142,7 +142,7 @@ func getRecentUnmetScheduleTimes(sj batchv1beta1.CronJob, now time.Time) ([]time
 		// but less than "lots".
 		if len(starts) > 100 {
 			// We can't get the most recent times so just return an empty slice
-			return []time.Time{}, fmt.Errorf("Too many missed start time (> 100). Set or decrease .spec.startingDeadlineSeconds or check clock skew.")
+			return []time.Time{}, fmt.Errorf("too many missed start time (> 100). Set or decrease .spec.startingDeadlineSeconds or check clock skew")
 		}
 	}
 	return starts, nil
@@ -183,6 +183,7 @@ func getFinishedStatus(j *batchv1.Job) (bool, batchv1.JobConditionType) {
 	return false, ""
 }
 
+// IsJobFinished returns whether or not a job has completed successfully or failed.
 func IsJobFinished(j *batchv1.Job) bool {
 	isFinished, _ := getFinishedStatus(j)
 	return isFinished

pkg/controller/cronjob/utils.go

@@ -35,7 +35,7 @@ func TestGetJobFromTemplate(t *testing.T) {
 	// and other fields, and add a created-by reference.
 
 	var one int64 = 1
-	var no bool = false
+	var no bool
 
 	sj := batchv1beta1.CronJob{
 		ObjectMeta: metav1.ObjectMeta{