Fix golint for types & functions need comment

The files are:
- src/entity/{metrics_container.go, metrics_service.go, service.go}
- src/kubernetes/deployment.go
- src/net/http/{handler.go, responsetest/assert.go}
- src/networkprovider/network.go
- src/prometheuscontroller/query.go
- src/volume/volume.go
- src/web/context.go

src/entity/metrics_container.go

@@ -1,17 +1,20 @@
 package entity
 
+// ContainerResourceMetrics is the sructure for Container Resource Metrics
 type ContainerResourceMetrics struct {
 	CPUUsagePercentage float32 `json:"cpuUsagePercentage"`
 	MemoryUsageBytes   float32 `json:"memoryUsageBytes"`
 }
 
+// ContainerStatusMetrics is the sructure for Container Status Metrics
 type ContainerStatusMetrics struct {
 	Status           string `json:"status"`
 	WaitingReason    string `json:"waitingReason"`
 	TerminatedReason string `json:"terminatedReason"`
 	RestartTime      int    `json:"restartTime"`
 }
 
+// ContainerDetailMetrics is the sructure  for Container Detail Metrics
 type ContainerDetailMetrics struct {
 	ContainerName string   `json:"containerName"`
 	CreatedAt     int      `json:"createAt"`
@@ -22,6 +25,8 @@ type ContainerDetailMetrics struct {
 	Command       []string `json:"command"`
 	vNIC          string   `json:"vNic"`
 }
+
+// ContainerMetrics is the structure for Container Metrics
 type ContainerMetrics struct {
 	Detail            ContainerDetailMetrics   `json:"detail"`
 	Status            ContainerStatusMetrics   `json:"status"`

src/entity/metrics_service.go

@@ -4,6 +4,7 @@ import (
 	"k8s.io/api/core/v1"
 )
 
+// ServiceMetrics is the structure for Service Metrics
 type ServiceMetrics struct {
 	ServiceName string            `json:"serviceName"`
 	Namespace   string            `json:"namespace"`

src/entity/service.go

@@ -6,17 +6,20 @@ import (
 	"gopkg.in/mgo.v2/bson"
 )
 
+// the const for ServiceCollectionName
 const (
 	ServiceCollectionName string = "services"
 )
 
+// ServicePort is the structure for service port
 type ServicePort struct {
 	Name       string `bson:"name" json:"name" validate:"required,k8sname"`
 	Port       int32  `bson:"port" json:"port" validate:"required"`
 	TargetPort int    `bson:"targetPort" json:"targetPort" validate:"required,max=65535,min=1"`
 	NodePort   int32  `bson:"nodePort" json:"nodePort" validate:"max=32767,min=30000"`
 }
 
+// Service is the structure for service
 type Service struct {
 	ID        bson.ObjectId     `bson:"_id,omitempty" json:"id" validate:"-"`
 	Name      string            `bson:"name" json:"name" validate:"required,k8sname"`

src/kubernetes/deployment.go

@@ -5,15 +5,17 @@ import (
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 )
 
-//Get the external IP address of node
+// CreateDeployment will get the external IP address of node
 func (kc *KubeCtl) CreateDeployment(deployment *appsv1.Deployment, namespace string) (*appsv1.Deployment, error) {
 	return kc.Clientset.AppsV1().Deployments(namespace).Create(deployment)
 }
 
+// GetDeployment will get deploy
 func (kc *KubeCtl) GetDeployment(name string, namespace string) (*appsv1.Deployment, error) {
 	return kc.Clientset.AppsV1().Deployments(namespace).Get(name, metav1.GetOptions{})
 }
 
+// GetDeployments will get deploys
 func (kc *KubeCtl) GetDeployments(namespace string) ([]*appsv1.Deployment, error) {
 	deployments := []*appsv1.Deployment{}
 	deploymentsList, err := kc.Clientset.AppsV1().Deployments(namespace).List(metav1.ListOptions{})
@@ -26,6 +28,7 @@ func (kc *KubeCtl) GetDeployments(namespace string) ([]*appsv1.Deployment, error
 	return deployments, nil
 }
 
+// DeleteDeployment will delete deploy
 func (kc *KubeCtl) DeleteDeployment(name string, namespace string) error {
 	return kc.Clientset.AppsV1().Deployments(namespace).Delete(name, &metav1.DeleteOptions{})
 }

src/net/http/handler.go

@@ -9,10 +9,10 @@ import (
 	"github.com/linkernetworks/vortex/src/web"
 )
 
-// The interface for native http handler(http.Request and http.ResponseWriter)
+// NativeContextHandler is the interface for native http handler(http.Request and http.ResponseWriter)
 type NativeContextHandler func(*web.NativeContext)
 
-// CompositeServiceProvider apply mongo client to HandlerFunc
+// CompositeServiceHandler apply mongo client to HandlerFunc
 func CompositeServiceHandler(sp *serviceprovider.Container, handler NativeContextHandler) http.HandlerFunc {
 	return func(resp http.ResponseWriter, req *http.Request) {
 		logger.Infoln(req.Method, req.URL)
@@ -21,10 +21,10 @@ func CompositeServiceHandler(sp *serviceprovider.Container, handler NativeContex
 	}
 }
 
-// The interface for restfuul handler(restful.Request,restful.Response)
+// RESTfulContextHandler is the interface for restfuul handler(restful.Request,restful.Response)
 type RESTfulContextHandler func(*web.Context)
 
-// The wrapper to combine the RESTfulContextHandler with our serviceprovider object
+// RESTfulServiceHandler is the wrapper to combine the RESTfulContextHandler with our serviceprovider object
 func RESTfulServiceHandler(sp *serviceprovider.Container, handler RESTfulContextHandler) restful.RouteFunction {
 	return func(req *restful.Request, resp *restful.Response) {
 		ctx := web.Context{sp, req, resp}

src/net/http/responsetest/assert.go

@@ -12,10 +12,12 @@ import (
 	"github.com/stretchr/testify/assert"
 )
 
+// AssertStatusEqual will assert equal status
 func AssertStatusEqual(t *testing.T, resp *httptest.ResponseRecorder, status int) {
 	assert.Equal(t, status, resp.Code)
 }
 
+// AssertErrorMessage will assert error message
 func AssertErrorMessage(t *testing.T, resp *httptest.ResponseRecorder, msg string) (err error) {
 	var payload = response.ErrorPayload{}
 	var out = resp.Body.Bytes()
@@ -31,6 +33,7 @@ func AssertErrorMessage(t *testing.T, resp *httptest.ResponseRecorder, msg strin
 	return err
 }
 
+// AssertError will assert error
 func AssertError(t *testing.T, resp *httptest.ResponseRecorder) (err error) {
 	var payload = response.ErrorPayload{}
 	var out = resp.Body.Bytes()

src/networkprovider/network.go

@@ -8,11 +8,13 @@ import (
 	"github.com/linkernetworks/vortex/src/utils"
 )
 
+// NetworkProvider is the structure for Network Provider
 type NetworkProvider interface {
 	CreateNetwork(sp *serviceprovider.Container) error
 	DeleteNetwork(sp *serviceprovider.Container) error
 }
 
+// GetNetworkProvider will get network provider if you gave *entity.Network
 func GetNetworkProvider(network *entity.Network) (NetworkProvider, error) {
 	switch network.Type {
 	case entity.OVSKernelspaceNetworkType:
@@ -32,6 +34,7 @@ func GetNetworkProvider(network *entity.Network) (NetworkProvider, error) {
 	}
 }
 
+// GenerateBridgeName will generate bridge name
 func GenerateBridgeName(datapathType, networkName string) string {
 	tmp := fmt.Sprintf("%s%s", datapathType, networkName)
 	str := utils.SHA256String(tmp)

src/prometheuscontroller/query.go

@@ -10,6 +10,7 @@ import (
 	"golang.org/x/net/context"
 )
 
+// Expression is the structure for expression
 type Expression struct {
 	Metrics     []string          `json:"metrics"`
 	QueryLabels map[string]string `json:"queryLabels"`

src/volume/volume.go

@@ -41,6 +41,7 @@ func getStorageClassName(session *mongo.Session, storageName string) (string, er
 	return storage.StorageClassName, err
 }
 
+// CreateVolume is a function to create volume
 func CreateVolume(sp *serviceprovider.Container, volume *entity.Volume) error {
 	namespace := "default"
 	session := sp.Mongo.NewSession()
@@ -57,6 +58,7 @@ func CreateVolume(sp *serviceprovider.Container, volume *entity.Volume) error {
 	return err
 }
 
+// DeleteVolume is a function to delete volume
 func DeleteVolume(sp *serviceprovider.Container, volume *entity.Volume) error {
 	namespace := "default"
 	//Check the pod

src/web/context.go

@@ -7,14 +7,14 @@ import (
 	"github.com/linkernetworks/vortex/src/serviceprovider"
 )
 
-// The struct to combine the restful message with our own serviceProvider
+// Context is the struct to combine the restful message with our own serviceProvider
 type Context struct {
 	ServiceProvider *serviceprovider.Container
 	Request         *restful.Request
 	Response        *restful.Response
 }
 
-// The struct to combine the native http message with our own serviceProvider
+// NativeContext is the struct to combine the native http message with our own serviceProvider
 type NativeContext struct {
 	ServiceProvider *serviceprovider.Container
 	Request         *http.Request