Fix golint issues in pkg/kubelet/client

Add comments to exported functions in `pkg/kubelet/client/client.go`

In `KubeletClientConfig` rename `EnableHttps` to `EnableHTTPS`. This requires
renaming it in `pkg/kubelet/client/client_test.go`

hack/.golint_failures

@@ -151,7 +151,6 @@ pkg/kubelet/apis/deviceplugin/v1beta1
 pkg/kubelet/cadvisor
 pkg/kubelet/cadvisor/testing
 pkg/kubelet/checkpointmanager/testing/example_checkpoint_formats/v1
-pkg/kubelet/client
 pkg/kubelet/cm
 pkg/kubelet/config
 pkg/kubelet/configmap

pkg/kubelet/client/kubelet_client.go

@@ -22,7 +22,7 @@ import (
 	"strconv"
 	"time"
 
-	"k8s.io/api/core/v1"
+	v1 "k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/types"
 	utilnet "k8s.io/apimachinery/pkg/util/net"
@@ -31,11 +31,16 @@ import (
 	nodeutil "k8s.io/kubernetes/pkg/util/node"
 )
 
+// KubeletClientConfig defines config parameters for the kubelet client
 type KubeletClientConfig struct {
-	// Default port - used if no information about Kubelet port can be found in Node.NodeStatus.DaemonEndpoints.
+	// Port specifies the default port - used if no information about Kubelet port can be found in Node.NodeStatus.DaemonEndpoints.
-	Port         uint
+	Port uint
+
+	// ReadOnlyPort specifies the Port for ReadOnly communications.
 	ReadOnlyPort uint
-	EnableHttps  bool
+
+	// EnableHTTPs specifies if traffic should be encrypted.
+	EnableHTTPS bool
 
 	// PreferredAddressTypes - used to select an address from Node.NodeStatus.Addresses
 	PreferredAddressTypes []string
@@ -66,6 +71,7 @@ type ConnectionInfoGetter interface {
 	GetConnectionInfo(ctx context.Context, nodeName types.NodeName) (*ConnectionInfo, error)
 }
 
+// MakeTransport creates a RoundTripper for HTTP Transport.
 func MakeTransport(config *KubeletClientConfig) (http.RoundTripper, error) {
 	tlsConfig, err := transport.TLSConfigFor(config.transportConfig())
 	if err != nil {
@@ -96,7 +102,7 @@ func (c *KubeletClientConfig) transportConfig() *transport.Config {
 		},
 		BearerToken: c.BearerToken,
 	}
-	if c.EnableHttps && !cfg.HasCA() {
+	if c.EnableHTTPS && !cfg.HasCA() {
 		cfg.TLS.Insecure = true
 	}
 	return cfg
@@ -110,6 +116,7 @@ type NodeGetter interface {
 // NodeGetterFunc allows implementing NodeGetter with a function
 type NodeGetterFunc func(ctx context.Context, name string, options metav1.GetOptions) (*v1.Node, error)
 
+// Get fetches information via NodeGetterFunc.
 func (f NodeGetterFunc) Get(ctx context.Context, name string, options metav1.GetOptions) (*v1.Node, error) {
 	return f(ctx, name, options)
 }
@@ -128,9 +135,10 @@ type NodeConnectionInfoGetter struct {
 	preferredAddressTypes []v1.NodeAddressType
 }
 
+// NewNodeConnectionInfoGetter creates a new NodeConnectionInfoGetter.
 func NewNodeConnectionInfoGetter(nodes NodeGetter, config KubeletClientConfig) (ConnectionInfoGetter, error) {
 	scheme := "http"
-	if config.EnableHttps {
+	if config.EnableHTTPS {
 		scheme = "https"
 	}
 
@@ -154,6 +162,7 @@ func NewNodeConnectionInfoGetter(nodes NodeGetter, config KubeletClientConfig) (
 	}, nil
 }
 
+// GetConnectionInfo retrieves connection info from the status of a Node API object.
 func (k *NodeConnectionInfoGetter) GetConnectionInfo(ctx context.Context, nodeName types.NodeName) (*ConnectionInfo, error) {
 	node, err := k.nodes.Get(ctx, string(nodeName), metav1.GetOptions{})
 	if err != nil {

pkg/kubelet/client/kubelet_client_test.go

@@ -24,7 +24,7 @@ import (
 
 func TestMakeTransportInvalid(t *testing.T) {
 	config := &KubeletClientConfig{
-		EnableHttps: true,
+		EnableHTTPS: true,
 		//Invalid certificate and key path
 		TLSClientConfig: restclient.TLSClientConfig{
 			CertFile: "../../client/testdata/mycertinvalid.cer",
@@ -45,12 +45,12 @@ func TestMakeTransportInvalid(t *testing.T) {
 func TestMakeTransportValid(t *testing.T) {
 	config := &KubeletClientConfig{
 		Port:        1234,
-		EnableHttps: true,
+		EnableHTTPS: true,
 		TLSClientConfig: restclient.TLSClientConfig{
 			CertFile: "../../client/testdata/mycertvalid.cer",
-			// TLS Configuration, only applies if EnableHttps is true.
+			// TLS Configuration, only applies if EnableHTTPS is true.
 			KeyFile: "../../client/testdata/mycertvalid.key",
-			// TLS Configuration, only applies if EnableHttps is true.
+			// TLS Configuration, only applies if EnableHTTPS is true.
 			CAFile: "../../client/testdata/myCA.cer",
 		},
 	}