1041 lines
23 KiB
Go
1041 lines
23 KiB
Go
/*
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Copyright 2014 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package portforward
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import (
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"context"
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"fmt"
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"net/http"
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"net/url"
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"reflect"
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"testing"
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"github.com/spf13/cobra"
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corev1 "k8s.io/api/core/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/runtime/schema"
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"k8s.io/apimachinery/pkg/util/intstr"
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"k8s.io/cli-runtime/pkg/genericiooptions"
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"k8s.io/client-go/rest/fake"
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"k8s.io/client-go/tools/portforward"
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cmdtesting "k8s.io/kubectl/pkg/cmd/testing"
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cmdutil "k8s.io/kubectl/pkg/cmd/util"
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"k8s.io/kubectl/pkg/scheme"
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)
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type fakePortForwarder struct {
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method string
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url *url.URL
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pfErr error
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}
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func (f *fakePortForwarder) ForwardPorts(method string, url *url.URL, opts PortForwardOptions) error {
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f.method = method
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f.url = url
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return f.pfErr
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}
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func testPortForward(t *testing.T, flags map[string]string, args []string) {
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version := "v1"
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tests := []struct {
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name string
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podPath, pfPath string
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pod *corev1.Pod
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pfErr bool
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}{
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{
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name: "pod portforward",
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podPath: "/api/" + version + "/namespaces/test/pods/foo",
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pfPath: "/api/" + version + "/namespaces/test/pods/foo/portforward",
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pod: execPod(),
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},
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{
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name: "pod portforward error",
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podPath: "/api/" + version + "/namespaces/test/pods/foo",
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pfPath: "/api/" + version + "/namespaces/test/pods/foo/portforward",
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pod: execPod(),
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pfErr: true,
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},
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}
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for _, test := range tests {
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t.Run(test.name, func(t *testing.T) {
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var err error
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tf := cmdtesting.NewTestFactory().WithNamespace("test")
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defer tf.Cleanup()
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codec := scheme.Codecs.LegacyCodec(scheme.Scheme.PrioritizedVersionsAllGroups()...)
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ns := scheme.Codecs.WithoutConversion()
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tf.Client = &fake.RESTClient{
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VersionedAPIPath: "/api/v1",
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GroupVersion: schema.GroupVersion{Group: "", Version: "v1"},
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NegotiatedSerializer: ns,
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Client: fake.CreateHTTPClient(func(req *http.Request) (*http.Response, error) {
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switch p, m := req.URL.Path, req.Method; {
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case p == test.podPath && m == "GET":
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body := cmdtesting.ObjBody(codec, test.pod)
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return &http.Response{StatusCode: http.StatusOK, Header: cmdtesting.DefaultHeader(), Body: body}, nil
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default:
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t.Errorf("%s: unexpected request: %#v\n%#v", test.name, req.URL, req)
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return nil, nil
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}
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}),
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}
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tf.ClientConfigVal = cmdtesting.DefaultClientConfig()
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ff := &fakePortForwarder{}
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if test.pfErr {
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ff.pfErr = fmt.Errorf("pf error")
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}
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opts := &PortForwardOptions{}
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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cmd := NewCmdPortForward(tf, genericiooptions.NewTestIOStreamsDiscard())
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cmd.Run = func(cmd *cobra.Command, args []string) {
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if err = opts.Complete(tf, cmd, args); err != nil {
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return
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}
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opts.PortForwarder = ff
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if err = opts.Validate(); err != nil {
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return
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}
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err = opts.RunPortForwardContext(ctx)
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}
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for name, value := range flags {
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cmd.Flags().Set(name, value)
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}
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cmd.Run(cmd, args)
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if test.pfErr && err != ff.pfErr {
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t.Errorf("%s: Unexpected port-forward error: %v", test.name, err)
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}
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if !test.pfErr && err != nil {
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t.Errorf("%s: Unexpected error: %v", test.name, err)
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}
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if test.pfErr {
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return
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}
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if ff.url == nil || ff.url.Path != test.pfPath {
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t.Errorf("%s: Did not get expected path for portforward request", test.name)
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}
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if ff.method != "POST" {
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t.Errorf("%s: Did not get method for attach request: %s", test.name, ff.method)
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}
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})
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}
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}
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func TestPortForward(t *testing.T) {
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testPortForward(t, nil, []string{"foo", ":5000", ":1000"})
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}
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func TestTranslateServicePortToTargetPort(t *testing.T) {
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cases := []struct {
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name string
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svc corev1.Service
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pod corev1.Pod
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ports []string
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translated []string
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err bool
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}{
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{
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name: "test success 1 (int port)",
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svc: corev1.Service{
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Spec: corev1.ServiceSpec{
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Ports: []corev1.ServicePort{
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{
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Port: 80,
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TargetPort: intstr.FromInt32(8080),
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},
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},
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},
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},
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pod: corev1.Pod{
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Spec: corev1.PodSpec{
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Containers: []corev1.Container{
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{
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Ports: []corev1.ContainerPort{
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{
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Name: "http",
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ContainerPort: int32(8080)},
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},
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},
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},
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},
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},
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ports: []string{"80"},
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translated: []string{"80:8080"},
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err: false,
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},
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{
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name: "test success 1 (int port with random local port)",
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svc: corev1.Service{
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Spec: corev1.ServiceSpec{
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Ports: []corev1.ServicePort{
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{
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Port: 80,
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TargetPort: intstr.FromInt32(8080),
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},
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},
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},
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},
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pod: corev1.Pod{
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Spec: corev1.PodSpec{
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Containers: []corev1.Container{
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{
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Ports: []corev1.ContainerPort{
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{
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Name: "http",
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ContainerPort: int32(8080)},
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},
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},
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},
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},
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},
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ports: []string{":80"},
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translated: []string{":8080"},
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err: false,
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},
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{
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name: "test success 1 (int port with explicit local port)",
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svc: corev1.Service{
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Spec: corev1.ServiceSpec{
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Ports: []corev1.ServicePort{
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{
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Port: 8080,
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TargetPort: intstr.FromInt32(8080),
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},
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},
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},
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},
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pod: corev1.Pod{
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Spec: corev1.PodSpec{
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Containers: []corev1.Container{
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{
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Ports: []corev1.ContainerPort{
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{
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Name: "http",
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ContainerPort: int32(8080)},
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},
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},
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},
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},
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},
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ports: []string{"8000:8080"},
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translated: []string{"8000:8080"},
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err: false,
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},
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{
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name: "test success 2 (clusterIP: None)",
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svc: corev1.Service{
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Spec: corev1.ServiceSpec{
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ClusterIP: "None",
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Ports: []corev1.ServicePort{
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{
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Port: 80,
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TargetPort: intstr.FromInt32(8080),
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},
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},
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},
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},
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pod: corev1.Pod{
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Spec: corev1.PodSpec{
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Containers: []corev1.Container{
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{
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Ports: []corev1.ContainerPort{
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{
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Name: "http",
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ContainerPort: int32(8080)},
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},
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},
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},
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},
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},
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ports: []string{"80"},
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translated: []string{"80"},
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err: false,
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},
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{
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name: "test success 2 (clusterIP: None with random local port)",
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svc: corev1.Service{
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Spec: corev1.ServiceSpec{
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ClusterIP: "None",
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Ports: []corev1.ServicePort{
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{
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Port: 80,
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TargetPort: intstr.FromInt32(8080),
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},
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},
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},
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},
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pod: corev1.Pod{
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Spec: corev1.PodSpec{
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Containers: []corev1.Container{
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{
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Ports: []corev1.ContainerPort{
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{
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Name: "http",
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ContainerPort: int32(8080)},
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},
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},
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},
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},
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},
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ports: []string{":80"},
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translated: []string{":80"},
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err: false,
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},
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{
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name: "test success 3 (named target port)",
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svc: corev1.Service{
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Spec: corev1.ServiceSpec{
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Ports: []corev1.ServicePort{
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{
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Port: 80,
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TargetPort: intstr.FromString("http"),
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},
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{
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Port: 443,
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TargetPort: intstr.FromString("https"),
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},
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},
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},
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},
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pod: corev1.Pod{
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Spec: corev1.PodSpec{
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Containers: []corev1.Container{
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{
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Ports: []corev1.ContainerPort{
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{
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Name: "http",
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ContainerPort: int32(8080)},
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{
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Name: "https",
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ContainerPort: int32(8443)},
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},
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},
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},
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},
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},
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ports: []string{"80", "443"},
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translated: []string{"80:8080", "443:8443"},
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err: false,
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},
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{
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name: "test success 3 (named target port with random local port)",
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svc: corev1.Service{
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Spec: corev1.ServiceSpec{
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Ports: []corev1.ServicePort{
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{
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Port: 80,
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TargetPort: intstr.FromString("http"),
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},
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{
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Port: 443,
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TargetPort: intstr.FromString("https"),
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},
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},
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},
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},
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pod: corev1.Pod{
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Spec: corev1.PodSpec{
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Containers: []corev1.Container{
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{
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Ports: []corev1.ContainerPort{
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{
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Name: "http",
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ContainerPort: int32(8080)},
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{
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Name: "https",
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ContainerPort: int32(8443)},
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},
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},
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},
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},
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},
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ports: []string{":80", ":443"},
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translated: []string{":8080", ":8443"},
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err: false,
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},
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{
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name: "test success 4 (named service port)",
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svc: corev1.Service{
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Spec: corev1.ServiceSpec{
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Ports: []corev1.ServicePort{
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{
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Port: 80,
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Name: "http",
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TargetPort: intstr.FromInt32(8080),
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},
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{
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Port: 443,
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Name: "https",
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TargetPort: intstr.FromInt32(8443),
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},
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},
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},
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},
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pod: corev1.Pod{
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Spec: corev1.PodSpec{
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Containers: []corev1.Container{
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{
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Ports: []corev1.ContainerPort{
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{
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ContainerPort: int32(8080)},
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{
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ContainerPort: int32(8443)},
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},
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},
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},
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},
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},
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ports: []string{"http", "https"},
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translated: []string{"80:8080", "443:8443"},
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err: false,
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},
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{
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name: "test success 4 (named service port with random local port)",
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svc: corev1.Service{
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Spec: corev1.ServiceSpec{
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Ports: []corev1.ServicePort{
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{
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Port: 80,
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Name: "http",
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TargetPort: intstr.FromInt32(8080),
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},
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{
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Port: 443,
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Name: "https",
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TargetPort: intstr.FromInt32(8443),
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},
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},
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},
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},
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pod: corev1.Pod{
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Spec: corev1.PodSpec{
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Containers: []corev1.Container{
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{
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Ports: []corev1.ContainerPort{
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{
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ContainerPort: int32(8080)},
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{
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ContainerPort: int32(8443)},
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},
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},
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},
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},
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},
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ports: []string{":http", ":https"},
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translated: []string{":8080", ":8443"},
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err: false,
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},
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{
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name: "test success 4 (named service port and named pod container port)",
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svc: corev1.Service{
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Spec: corev1.ServiceSpec{
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Ports: []corev1.ServicePort{
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{
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Port: 80,
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Name: "http",
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TargetPort: intstr.FromString("http"),
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},
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},
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},
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},
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pod: corev1.Pod{
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Spec: corev1.PodSpec{
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Containers: []corev1.Container{
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{
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Ports: []corev1.ContainerPort{
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{
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Name: "http",
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ContainerPort: int32(80)},
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},
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},
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},
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},
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},
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ports: []string{"http"},
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translated: []string{"80"},
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err: false,
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},
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{
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name: "test success (targetPort omitted)",
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svc: corev1.Service{
|
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Spec: corev1.ServiceSpec{
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|
Ports: []corev1.ServicePort{
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{
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Port: 80,
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|
},
|
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},
|
|
},
|
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},
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pod: corev1.Pod{
|
|
Spec: corev1.PodSpec{
|
|
Containers: []corev1.Container{
|
|
{
|
|
Ports: []corev1.ContainerPort{
|
|
{
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Name: "http",
|
|
ContainerPort: int32(80)},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
ports: []string{"80"},
|
|
translated: []string{"80"},
|
|
err: false,
|
|
},
|
|
{
|
|
name: "test success (targetPort omitted with random local port)",
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|
svc: corev1.Service{
|
|
Spec: corev1.ServiceSpec{
|
|
Ports: []corev1.ServicePort{
|
|
{
|
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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 target 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 1 (named service 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: "http",
|
|
ContainerPort: int32(8080)},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
ports: []string{"https"},
|
|
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)
|
|
}
|
|
}
|
|
}
|
|
|
|
func execPod() *corev1.Pod {
|
|
return &corev1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{Name: "foo", Namespace: "test", ResourceVersion: "10"},
|
|
Spec: corev1.PodSpec{
|
|
RestartPolicy: corev1.RestartPolicyAlways,
|
|
DNSPolicy: corev1.DNSClusterFirst,
|
|
Containers: []corev1.Container{
|
|
{
|
|
Name: "bar",
|
|
},
|
|
},
|
|
},
|
|
Status: corev1.PodStatus{
|
|
Phase: corev1.PodRunning,
|
|
},
|
|
}
|
|
}
|
|
|
|
func TestConvertPodNamedPortToNumber(t *testing.T) {
|
|
cases := []struct {
|
|
name string
|
|
pod corev1.Pod
|
|
ports []string
|
|
converted []string
|
|
err bool
|
|
}{
|
|
{
|
|
name: "port number without local port",
|
|
pod: corev1.Pod{
|
|
Spec: corev1.PodSpec{
|
|
Containers: []corev1.Container{
|
|
{
|
|
Ports: []corev1.ContainerPort{
|
|
{
|
|
Name: "http",
|
|
ContainerPort: int32(80)},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
ports: []string{"80"},
|
|
converted: []string{"80"},
|
|
err: false,
|
|
},
|
|
{
|
|
name: "port number with local port",
|
|
pod: corev1.Pod{
|
|
Spec: corev1.PodSpec{
|
|
Containers: []corev1.Container{
|
|
{
|
|
Ports: []corev1.ContainerPort{
|
|
{
|
|
Name: "http",
|
|
ContainerPort: int32(80)},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
ports: []string{"8000:80"},
|
|
converted: []string{"8000:80"},
|
|
err: false,
|
|
},
|
|
{
|
|
name: "port number with random local port",
|
|
pod: corev1.Pod{
|
|
Spec: corev1.PodSpec{
|
|
Containers: []corev1.Container{
|
|
{
|
|
Ports: []corev1.ContainerPort{
|
|
{
|
|
Name: "http",
|
|
ContainerPort: int32(80)},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
ports: []string{":80"},
|
|
converted: []string{":80"},
|
|
err: false,
|
|
},
|
|
{
|
|
name: "named port without local port",
|
|
pod: corev1.Pod{
|
|
Spec: corev1.PodSpec{
|
|
Containers: []corev1.Container{
|
|
{
|
|
Ports: []corev1.ContainerPort{
|
|
{
|
|
Name: "http",
|
|
ContainerPort: int32(80)},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
ports: []string{"http"},
|
|
converted: []string{"80"},
|
|
err: false,
|
|
},
|
|
{
|
|
name: "named port with local port",
|
|
pod: corev1.Pod{
|
|
Spec: corev1.PodSpec{
|
|
Containers: []corev1.Container{
|
|
{
|
|
Ports: []corev1.ContainerPort{
|
|
{
|
|
Name: "http",
|
|
ContainerPort: int32(80)},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
ports: []string{"8000:http"},
|
|
converted: []string{"8000:80"},
|
|
err: false,
|
|
},
|
|
{
|
|
name: "named port with random local port",
|
|
pod: corev1.Pod{
|
|
Spec: corev1.PodSpec{
|
|
Containers: []corev1.Container{
|
|
{
|
|
Ports: []corev1.ContainerPort{
|
|
{
|
|
Name: "http",
|
|
ContainerPort: int32(80)},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
ports: []string{":http"},
|
|
converted: []string{":80"},
|
|
err: false,
|
|
},
|
|
{
|
|
name: "named port can not be found",
|
|
pod: corev1.Pod{
|
|
Spec: corev1.PodSpec{
|
|
Containers: []corev1.Container{
|
|
{
|
|
Ports: []corev1.ContainerPort{
|
|
{
|
|
Name: "https",
|
|
ContainerPort: int32(443)},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
ports: []string{"http"},
|
|
err: true,
|
|
},
|
|
{
|
|
name: "one of the requested named ports can not be found",
|
|
pod: corev1.Pod{
|
|
Spec: corev1.PodSpec{
|
|
Containers: []corev1.Container{
|
|
{
|
|
Ports: []corev1.ContainerPort{
|
|
{
|
|
Name: "https",
|
|
ContainerPort: int32(443)},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
ports: []string{"https", "http"},
|
|
err: true,
|
|
},
|
|
{
|
|
name: "empty port name",
|
|
pod: corev1.Pod{
|
|
Spec: corev1.PodSpec{
|
|
Containers: []corev1.Container{
|
|
{
|
|
Ports: []corev1.ContainerPort{
|
|
{
|
|
ContainerPort: int32(27017)},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
ports: []string{"28015:"},
|
|
converted: nil,
|
|
err: true,
|
|
},
|
|
}
|
|
|
|
for _, tc := range cases {
|
|
converted, err := convertPodNamedPortToNumber(tc.ports, 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(converted, tc.converted) {
|
|
t.Errorf("%v: expected %v; got %v", tc.name, tc.converted, converted)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestCheckUDPPort(t *testing.T) {
|
|
tests := []struct {
|
|
name string
|
|
pod *corev1.Pod
|
|
service *corev1.Service
|
|
ports []string
|
|
expectError bool
|
|
}{
|
|
{
|
|
name: "forward to a UDP port in a Pod",
|
|
pod: &corev1.Pod{
|
|
Spec: corev1.PodSpec{
|
|
Containers: []corev1.Container{
|
|
{
|
|
Ports: []corev1.ContainerPort{
|
|
{Protocol: corev1.ProtocolUDP, ContainerPort: 53},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
ports: []string{"53"},
|
|
expectError: true,
|
|
},
|
|
{
|
|
name: "forward to a named UDP port in a Pod",
|
|
pod: &corev1.Pod{
|
|
Spec: corev1.PodSpec{
|
|
Containers: []corev1.Container{
|
|
{
|
|
Ports: []corev1.ContainerPort{
|
|
{Protocol: corev1.ProtocolUDP, ContainerPort: 53, Name: "dns"},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
ports: []string{"dns"},
|
|
expectError: true,
|
|
},
|
|
{
|
|
name: "Pod has ports with both TCP and UDP protocol (UDP first)",
|
|
pod: &corev1.Pod{
|
|
Spec: corev1.PodSpec{
|
|
Containers: []corev1.Container{
|
|
{
|
|
Ports: []corev1.ContainerPort{
|
|
{Protocol: corev1.ProtocolUDP, ContainerPort: 53},
|
|
{Protocol: corev1.ProtocolTCP, ContainerPort: 53},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
ports: []string{":53"},
|
|
},
|
|
{
|
|
name: "Pod has ports with both TCP and UDP protocol (TCP first)",
|
|
pod: &corev1.Pod{
|
|
Spec: corev1.PodSpec{
|
|
Containers: []corev1.Container{
|
|
{
|
|
Ports: []corev1.ContainerPort{
|
|
{Protocol: corev1.ProtocolTCP, ContainerPort: 53},
|
|
{Protocol: corev1.ProtocolUDP, ContainerPort: 53},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
ports: []string{":53"},
|
|
},
|
|
|
|
{
|
|
name: "forward to a UDP port in a Service",
|
|
service: &corev1.Service{
|
|
Spec: corev1.ServiceSpec{
|
|
Ports: []corev1.ServicePort{
|
|
{Protocol: corev1.ProtocolUDP, Port: 53},
|
|
},
|
|
},
|
|
},
|
|
ports: []string{"53"},
|
|
expectError: true,
|
|
},
|
|
{
|
|
name: "forward to a named UDP port in a Service",
|
|
service: &corev1.Service{
|
|
Spec: corev1.ServiceSpec{
|
|
Ports: []corev1.ServicePort{
|
|
{Protocol: corev1.ProtocolUDP, Port: 53, Name: "dns"},
|
|
},
|
|
},
|
|
},
|
|
ports: []string{"10053:dns"},
|
|
expectError: true,
|
|
},
|
|
{
|
|
name: "Service has ports with both TCP and UDP protocol (UDP first)",
|
|
service: &corev1.Service{
|
|
Spec: corev1.ServiceSpec{
|
|
Ports: []corev1.ServicePort{
|
|
{Protocol: corev1.ProtocolUDP, Port: 53},
|
|
{Protocol: corev1.ProtocolTCP, Port: 53},
|
|
},
|
|
},
|
|
},
|
|
ports: []string{"53"},
|
|
},
|
|
{
|
|
name: "Service has ports with both TCP and UDP protocol (TCP first)",
|
|
service: &corev1.Service{
|
|
Spec: corev1.ServiceSpec{
|
|
Ports: []corev1.ServicePort{
|
|
{Protocol: corev1.ProtocolTCP, Port: 53},
|
|
{Protocol: corev1.ProtocolUDP, Port: 53},
|
|
},
|
|
},
|
|
},
|
|
ports: []string{"53"},
|
|
},
|
|
}
|
|
for _, tc := range tests {
|
|
var err error
|
|
if tc.pod != nil {
|
|
err = checkUDPPortInPod(tc.ports, tc.pod)
|
|
} else if tc.service != nil {
|
|
err = checkUDPPortInService(tc.ports, tc.service)
|
|
}
|
|
if err != nil {
|
|
if tc.expectError {
|
|
continue
|
|
}
|
|
t.Errorf("%v: unexpected error: %v", tc.name, err)
|
|
continue
|
|
}
|
|
if tc.expectError {
|
|
t.Errorf("%v: unexpected success", tc.name)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestCreateDialer(t *testing.T) {
|
|
url, err := url.Parse("http://localhost:8080/index.html")
|
|
if err != nil {
|
|
t.Fatalf("unable to parse test url: %v", err)
|
|
}
|
|
config := cmdtesting.DefaultClientConfig()
|
|
opts := PortForwardOptions{Config: config}
|
|
// First, ensure that no environment variable creates the fallback dialer.
|
|
dialer, err := createDialer("GET", url, opts)
|
|
if err != nil {
|
|
t.Fatalf("unable to create dialer: %v", err)
|
|
}
|
|
if _, isFallback := dialer.(*portforward.FallbackDialer); !isFallback {
|
|
t.Errorf("expected fallback dialer, got %#v", dialer)
|
|
}
|
|
// Next, check turning on feature flag explicitly also creates fallback dialer.
|
|
t.Setenv(string(cmdutil.PortForwardWebsockets), "true")
|
|
dialer, err = createDialer("GET", url, opts)
|
|
if err != nil {
|
|
t.Fatalf("unable to create dialer: %v", err)
|
|
}
|
|
if _, isFallback := dialer.(*portforward.FallbackDialer); !isFallback {
|
|
t.Errorf("expected fallback dialer, got %#v", dialer)
|
|
}
|
|
// Finally, check explicit disabling does NOT create the fallback dialer.
|
|
t.Setenv(string(cmdutil.PortForwardWebsockets), "false")
|
|
dialer, err = createDialer("GET", url, opts)
|
|
if err != nil {
|
|
t.Fatalf("unable to create dialer: %v", err)
|
|
}
|
|
if _, isFallback := dialer.(*portforward.FallbackDialer); isFallback {
|
|
t.Errorf("expected fallback dialer, got %#v", dialer)
|
|
}
|
|
}
|