fix error in findPortByName

pkg/kubelet/prober/prober.go

@@ -255,7 +255,7 @@ func extractPort(param util.IntOrString, container api.Container) (int, error) {
 func findPortByName(container api.Container, portName string) (int, error) {
 	for _, port := range container.Ports {
 		if port.Name == portName {
-			return port.HostPort, nil
+			return port.ContainerPort, nil
 		}
 	}
 	return 0, fmt.Errorf("port %s not found", portName)

pkg/kubelet/prober/prober_test.go

@@ -48,12 +48,12 @@ func TestFindPortByName(t *testing.T) {
 	container := api.Container{
 		Ports: []api.ContainerPort{
 			{
-				Name:     "foo",
-				HostPort: 8080,
+				Name:          "foo",
+				ContainerPort: 8080,
 			},
 			{
-				Name:     "bar",
-				HostPort: 9000,
+				Name:          "bar",
+				ContainerPort: 9000,
 			},
 		},
 	}
@@ -85,7 +85,7 @@ func TestGetURLParts(t *testing.T) {
 	for _, test := range testCases {
 		state := api.PodStatus{PodIP: "127.0.0.1"}
 		container := api.Container{
-			Ports: []api.ContainerPort{{Name: "found", HostPort: 93}},
+			Ports: []api.ContainerPort{{Name: "found", ContainerPort: 93}},
 			LivenessProbe: &api.Probe{
 				Handler: api.Handler{
 					HTTPGet: test.probe,
@@ -138,7 +138,7 @@ func TestGetTCPAddrParts(t *testing.T) {
 	for _, test := range testCases {
 		host := "1.2.3.4"
 		container := api.Container{
-			Ports: []api.ContainerPort{{Name: "found", HostPort: 93}},
+			Ports: []api.ContainerPort{{Name: "found", ContainerPort: 93}},
 			LivenessProbe: &api.Probe{
 				Handler: api.Handler{
 					TCPSocket: test.probe,