mirror of https://github.com/k3s-io/k3s
357 lines
8.1 KiB
Go
357 lines
8.1 KiB
Go
/*
|
|
Copyright 2014 The Kubernetes Authors.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package cmd
|
|
|
|
import (
|
|
"fmt"
|
|
"net/http"
|
|
"net/url"
|
|
"reflect"
|
|
"testing"
|
|
|
|
"github.com/spf13/cobra"
|
|
|
|
corev1 "k8s.io/api/core/v1"
|
|
"k8s.io/apimachinery/pkg/runtime/schema"
|
|
"k8s.io/apimachinery/pkg/util/intstr"
|
|
"k8s.io/client-go/rest/fake"
|
|
cmdtesting "k8s.io/kubernetes/pkg/kubectl/cmd/testing"
|
|
"k8s.io/kubernetes/pkg/kubectl/genericclioptions"
|
|
"k8s.io/kubernetes/pkg/kubectl/scheme"
|
|
)
|
|
|
|
type fakePortForwarder struct {
|
|
method string
|
|
url *url.URL
|
|
pfErr error
|
|
}
|
|
|
|
func (f *fakePortForwarder) ForwardPorts(method string, url *url.URL, opts PortForwardOptions) error {
|
|
f.method = method
|
|
f.url = url
|
|
return f.pfErr
|
|
}
|
|
|
|
func testPortForward(t *testing.T, flags map[string]string, args []string) {
|
|
version := "v1"
|
|
|
|
tests := []struct {
|
|
name string
|
|
podPath, pfPath string
|
|
pod *corev1.Pod
|
|
pfErr bool
|
|
}{
|
|
{
|
|
name: "pod portforward",
|
|
podPath: "/api/" + version + "/namespaces/test/pods/foo",
|
|
pfPath: "/api/" + version + "/namespaces/test/pods/foo/portforward",
|
|
pod: execPod(),
|
|
},
|
|
{
|
|
name: "pod portforward error",
|
|
podPath: "/api/" + version + "/namespaces/test/pods/foo",
|
|
pfPath: "/api/" + version + "/namespaces/test/pods/foo/portforward",
|
|
pod: execPod(),
|
|
pfErr: true,
|
|
},
|
|
}
|
|
for _, test := range tests {
|
|
t.Run(test.name, func(t *testing.T) {
|
|
var err error
|
|
tf := cmdtesting.NewTestFactory().WithNamespace("test")
|
|
defer tf.Cleanup()
|
|
|
|
codec := scheme.Codecs.LegacyCodec(scheme.Scheme.PrioritizedVersionsAllGroups()...)
|
|
ns := scheme.Codecs
|
|
|
|
tf.Client = &fake.RESTClient{
|
|
VersionedAPIPath: "/api/v1",
|
|
GroupVersion: schema.GroupVersion{Group: "", Version: "v1"},
|
|
NegotiatedSerializer: ns,
|
|
Client: fake.CreateHTTPClient(func(req *http.Request) (*http.Response, error) {
|
|
switch p, m := req.URL.Path, req.Method; {
|
|
case p == test.podPath && m == "GET":
|
|
body := objBody(codec, test.pod)
|
|
return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: body}, nil
|
|
default:
|
|
t.Errorf("%s: unexpected request: %#v\n%#v", test.name, req.URL, req)
|
|
return nil, nil
|
|
}
|
|
}),
|
|
}
|
|
tf.ClientConfigVal = defaultClientConfig()
|
|
ff := &fakePortForwarder{}
|
|
if test.pfErr {
|
|
ff.pfErr = fmt.Errorf("pf error")
|
|
}
|
|
|
|
opts := &PortForwardOptions{}
|
|
cmd := NewCmdPortForward(tf, genericclioptions.NewTestIOStreamsDiscard())
|
|
cmd.Run = func(cmd *cobra.Command, args []string) {
|
|
if err = opts.Complete(tf, cmd, args); err != nil {
|
|
return
|
|
}
|
|
opts.PortForwarder = ff
|
|
if err = opts.Validate(); err != nil {
|
|
return
|
|
}
|
|
err = opts.RunPortForward()
|
|
}
|
|
|
|
for name, value := range flags {
|
|
cmd.Flags().Set(name, value)
|
|
}
|
|
cmd.Run(cmd, args)
|
|
|
|
if test.pfErr && err != ff.pfErr {
|
|
t.Errorf("%s: Unexpected port-forward error: %v", test.name, err)
|
|
}
|
|
if !test.pfErr && err != nil {
|
|
t.Errorf("%s: Unexpected error: %v", test.name, err)
|
|
}
|
|
if test.pfErr {
|
|
return
|
|
}
|
|
|
|
if ff.url == nil || ff.url.Path != test.pfPath {
|
|
t.Errorf("%s: Did not get expected path for portforward request", test.name)
|
|
}
|
|
if ff.method != "POST" {
|
|
t.Errorf("%s: Did not get method for attach request: %s", test.name, ff.method)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestPortForward(t *testing.T) {
|
|
testPortForward(t, nil, []string{"foo", ":5000", ":1000"})
|
|
}
|
|
|
|
func TestTranslateServicePortToTargetPort(t *testing.T) {
|
|
cases := []struct {
|
|
name string
|
|
svc corev1.Service
|
|
pod corev1.Pod
|
|
ports []string
|
|
translated []string
|
|
err bool
|
|
}{
|
|
{
|
|
name: "test success 1 (int port)",
|
|
svc: corev1.Service{
|
|
Spec: corev1.ServiceSpec{
|
|
Ports: []corev1.ServicePort{
|
|
{
|
|
Port: 80,
|
|
TargetPort: intstr.FromInt(8080),
|
|
},
|
|
},
|
|
},
|
|
},
|
|
pod: corev1.Pod{
|
|
Spec: corev1.PodSpec{
|
|
Containers: []corev1.Container{
|
|
{
|
|
Ports: []corev1.ContainerPort{
|
|
{
|
|
Name: "http",
|
|
ContainerPort: int32(8080)},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
ports: []string{"80"},
|
|
translated: []string{"80:8080"},
|
|
err: false,
|
|
},
|
|
{
|
|
name: "test success 2 (clusterIP: None)",
|
|
svc: corev1.Service{
|
|
Spec: corev1.ServiceSpec{
|
|
ClusterIP: "None",
|
|
Ports: []corev1.ServicePort{
|
|
{
|
|
Port: 80,
|
|
TargetPort: intstr.FromInt(8080),
|
|
},
|
|
},
|
|
},
|
|
},
|
|
pod: corev1.Pod{
|
|
Spec: corev1.PodSpec{
|
|
Containers: []corev1.Container{
|
|
{
|
|
Ports: []corev1.ContainerPort{
|
|
{
|
|
Name: "http",
|
|
ContainerPort: int32(8080)},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
ports: []string{"80"},
|
|
translated: []string{"80"},
|
|
err: false,
|
|
},
|
|
{
|
|
name: "test success 3 (named port)",
|
|
svc: corev1.Service{
|
|
Spec: corev1.ServiceSpec{
|
|
Ports: []corev1.ServicePort{
|
|
{
|
|
Port: 80,
|
|
TargetPort: intstr.FromString("http"),
|
|
},
|
|
{
|
|
Port: 443,
|
|
TargetPort: intstr.FromString("https"),
|
|
},
|
|
},
|
|
},
|
|
},
|
|
pod: corev1.Pod{
|
|
Spec: corev1.PodSpec{
|
|
Containers: []corev1.Container{
|
|
{
|
|
Ports: []corev1.ContainerPort{
|
|
{
|
|
Name: "http",
|
|
ContainerPort: int32(8080)},
|
|
{
|
|
Name: "https",
|
|
ContainerPort: int32(8443)},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
ports: []string{"80", "443"},
|
|
translated: []string{"80:8080", "443:8443"},
|
|
err: false,
|
|
},
|
|
{
|
|
name: "test success (targetPort omitted)",
|
|
svc: corev1.Service{
|
|
Spec: corev1.ServiceSpec{
|
|
Ports: []corev1.ServicePort{
|
|
{
|
|
Port: 80,
|
|
},
|
|
},
|
|
},
|
|
},
|
|
pod: corev1.Pod{
|
|
Spec: corev1.PodSpec{
|
|
Containers: []corev1.Container{
|
|
{
|
|
Ports: []corev1.ContainerPort{
|
|
{
|
|
Name: "http",
|
|
ContainerPort: int32(80)},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
ports: []string{"80"},
|
|
translated: []string{"80"},
|
|
err: false,
|
|
},
|
|
{
|
|
name: "test failure 1 (named port lookup failure)",
|
|
svc: corev1.Service{
|
|
Spec: corev1.ServiceSpec{
|
|
Ports: []corev1.ServicePort{
|
|
{
|
|
Port: 80,
|
|
TargetPort: intstr.FromString("http"),
|
|
},
|
|
},
|
|
},
|
|
},
|
|
pod: corev1.Pod{
|
|
Spec: corev1.PodSpec{
|
|
Containers: []corev1.Container{
|
|
{
|
|
Ports: []corev1.ContainerPort{
|
|
{
|
|
Name: "https",
|
|
ContainerPort: int32(443)},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
ports: []string{"80"},
|
|
translated: []string{},
|
|
err: true,
|
|
},
|
|
{
|
|
name: "test failure 2 (service port not declared)",
|
|
svc: corev1.Service{
|
|
Spec: corev1.ServiceSpec{
|
|
Ports: []corev1.ServicePort{
|
|
{
|
|
Port: 80,
|
|
TargetPort: intstr.FromString("http"),
|
|
},
|
|
},
|
|
},
|
|
},
|
|
pod: corev1.Pod{
|
|
Spec: corev1.PodSpec{
|
|
Containers: []corev1.Container{
|
|
{
|
|
Ports: []corev1.ContainerPort{
|
|
{
|
|
Name: "https",
|
|
ContainerPort: int32(443)},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
ports: []string{"443"},
|
|
translated: []string{},
|
|
err: true,
|
|
},
|
|
}
|
|
|
|
for _, tc := range cases {
|
|
translated, err := translateServicePortToTargetPort(tc.ports, tc.svc, tc.pod)
|
|
if err != nil {
|
|
if tc.err {
|
|
continue
|
|
}
|
|
|
|
t.Errorf("%v: unexpected error: %v", tc.name, err)
|
|
continue
|
|
}
|
|
|
|
if tc.err {
|
|
t.Errorf("%v: unexpected success", tc.name)
|
|
continue
|
|
}
|
|
|
|
if !reflect.DeepEqual(translated, tc.translated) {
|
|
t.Errorf("%v: expected %v; got %v", tc.name, tc.translated, translated)
|
|
}
|
|
}
|
|
}
|