fix golint failures of pkg/kubelet/apis

Author: SataQiu

hack/.golint_failures

@@ -163,7 +163,6 @@ pkg/kubectl/generate/versioned
 pkg/kubectl/metricsutil
 pkg/kubectl/util/templates
 pkg/kubelet
-pkg/kubelet/apis
 pkg/kubelet/apis/config
 pkg/kubelet/apis/config/v1beta1
 pkg/kubelet/apis/deviceplugin/v1beta1

pkg/kubelet/apis/well_known_annotations.go

@@ -17,6 +17,7 @@ limitations under the License.
 package apis
 
 const (
+	// AnnotationProvidedIPAddr is a node IP annotation set by the "external" cloud provider.
 	// When kubelet is started with the "external" cloud provider, then
 	// it sets this annotation on the node to denote an ip address set from the
 	// cmd line flag (--node-ip). This ip is verified with the cloudprovider as valid by

pkg/kubelet/apis/well_known_annotations_windows.go

@@ -24,10 +24,12 @@ import (
 )
 
 const (
-	// HypervIsolationAnnotationKey and HypervIsolationValue are used to run windows containers with hyperv isolation.
+	// HypervIsolationAnnotationKey is used to run windows containers with hyperv isolation.
 	// Refer https://aka.ms/hyperv-container.
 	HypervIsolationAnnotationKey = "experimental.windows.kubernetes.io/isolation-type"
-	HypervIsolationValue         = "hyperv"
+	// HypervIsolationValue is used to run windows containers with hyperv isolation.
+	// Refer https://aka.ms/hyperv-container.
+	HypervIsolationValue = "hyperv"
 )
 
 // ShouldIsolatedByHyperV returns true if a windows container should be run with hyperv isolation.

pkg/kubelet/apis/well_known_labels.go

@@ -24,10 +24,15 @@ import (
 )
 
 const (
-	// The OS/Arch labels are promoted to GA in 1.14. kubelet applies both beta
+	// LabelOS is a label to indicate the operating system of the node.
+	// The OS labels are promoted to GA in 1.14. kubelet applies both beta
 	// and GA labels to ensure backward compatibility.
-	// TODO: stop applying the beta OS/Arch labels in Kubernetes 1.18.
-	LabelOS   = "beta.kubernetes.io/os"
+	// TODO: stop applying the beta OS labels in Kubernetes 1.18.
+	LabelOS = "beta.kubernetes.io/os"
+	// LabelArch is a label to indicate the architecture of the node.
+	// The Arch labels are promoted to GA in 1.14. kubelet applies both beta
+	// and GA labels to ensure backward compatibility.
+	// TODO: stop applying the beta Arch labels in Kubernetes 1.18.
 	LabelArch = "beta.kubernetes.io/arch"
 
 	// GA versions of the legacy beta labels.