k3s/pkg/kubectl/cmd/cmd_test.go

630 lines
19 KiB
Go

/*
Copyright 2014 The Kubernetes Authors All rights reserved.
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 (
"bytes"
"errors"
"fmt"
"io"
"io/ioutil"
"os"
"reflect"
"testing"
"time"
"k8s.io/kubernetes/pkg/api"
"k8s.io/kubernetes/pkg/api/meta"
"k8s.io/kubernetes/pkg/api/testapi"
"k8s.io/kubernetes/pkg/api/unversioned"
"k8s.io/kubernetes/pkg/api/validation"
client "k8s.io/kubernetes/pkg/client/unversioned"
"k8s.io/kubernetes/pkg/client/unversioned/fake"
"k8s.io/kubernetes/pkg/kubectl"
cmdutil "k8s.io/kubernetes/pkg/kubectl/cmd/util"
"k8s.io/kubernetes/pkg/kubectl/resource"
"k8s.io/kubernetes/pkg/runtime"
"k8s.io/kubernetes/pkg/runtime/serializer"
"k8s.io/kubernetes/pkg/util"
)
func initTestErrorHandler(t *testing.T) {
cmdutil.BehaviorOnFatal(func(str string) {
t.Errorf("Error running command: %s", str)
})
}
type internalType struct {
Kind string
APIVersion string
Name string
}
type externalType struct {
Kind string `json:"kind"`
APIVersion string `json:"apiVersion"`
Name string `json:"name"`
}
type ExternalType2 struct {
Kind string `json:"kind"`
APIVersion string `json:"apiVersion"`
Name string `json:"name"`
}
func (obj *internalType) GetObjectKind() unversioned.ObjectKind { return obj }
func (obj *internalType) SetGroupVersionKind(gvk *unversioned.GroupVersionKind) {
obj.APIVersion, obj.Kind = gvk.ToAPIVersionAndKind()
}
func (obj *internalType) GroupVersionKind() *unversioned.GroupVersionKind {
return unversioned.FromAPIVersionAndKind(obj.APIVersion, obj.Kind)
}
func (obj *externalType) GetObjectKind() unversioned.ObjectKind { return obj }
func (obj *externalType) SetGroupVersionKind(gvk *unversioned.GroupVersionKind) {
obj.APIVersion, obj.Kind = gvk.ToAPIVersionAndKind()
}
func (obj *externalType) GroupVersionKind() *unversioned.GroupVersionKind {
return unversioned.FromAPIVersionAndKind(obj.APIVersion, obj.Kind)
}
func (obj *ExternalType2) GetObjectKind() unversioned.ObjectKind { return obj }
func (obj *ExternalType2) SetGroupVersionKind(gvk *unversioned.GroupVersionKind) {
obj.APIVersion, obj.Kind = gvk.ToAPIVersionAndKind()
}
func (obj *ExternalType2) GroupVersionKind() *unversioned.GroupVersionKind {
return unversioned.FromAPIVersionAndKind(obj.APIVersion, obj.Kind)
}
var versionErr = errors.New("not a version")
func versionErrIfFalse(b bool) error {
if b {
return nil
}
return versionErr
}
var validVersion = testapi.Default.GroupVersion().Version
var internalGV = unversioned.GroupVersion{Group: "apitest", Version: runtime.APIVersionInternal}
var unlikelyGV = unversioned.GroupVersion{Group: "apitest", Version: "unlikelyversion"}
var validVersionGV = unversioned.GroupVersion{Group: "apitest", Version: validVersion}
func newExternalScheme() (*runtime.Scheme, meta.RESTMapper, runtime.Codec) {
scheme := runtime.NewScheme()
scheme.AddKnownTypeWithName(internalGV.WithKind("Type"), &internalType{})
scheme.AddKnownTypeWithName(unlikelyGV.WithKind("Type"), &externalType{})
//This tests that kubectl will not confuse the external scheme with the internal scheme, even when they accidentally have versions of the same name.
scheme.AddKnownTypeWithName(validVersionGV.WithKind("Type"), &ExternalType2{})
codecs := serializer.NewCodecFactory(scheme)
codec := codecs.LegacyCodec(unlikelyGV)
mapper := meta.NewDefaultRESTMapper([]unversioned.GroupVersion{unlikelyGV, validVersionGV}, func(version unversioned.GroupVersion) (*meta.VersionInterfaces, error) {
return &meta.VersionInterfaces{
ObjectConvertor: scheme,
MetadataAccessor: meta.NewAccessor(),
}, versionErrIfFalse(version == validVersionGV || version == unlikelyGV)
})
for _, gv := range []unversioned.GroupVersion{unlikelyGV, validVersionGV} {
for kind := range scheme.KnownTypes(gv) {
gvk := gv.WithKind(kind)
mixedCase := false
scope := meta.RESTScopeNamespace
mapper.Add(gvk, scope, mixedCase)
}
}
return scheme, mapper, codec
}
type testPrinter struct {
Objects []runtime.Object
Err error
}
func (t *testPrinter) PrintObj(obj runtime.Object, out io.Writer) error {
t.Objects = append(t.Objects, obj)
fmt.Fprintf(out, "%#v", obj)
return t.Err
}
// TODO: implement HandledResources()
func (t *testPrinter) HandledResources() []string {
return []string{}
}
type testDescriber struct {
Name, Namespace string
Output string
Err error
}
func (t *testDescriber) Describe(namespace, name string) (output string, err error) {
t.Namespace, t.Name = namespace, name
return t.Output, t.Err
}
type testFactory struct {
Mapper meta.RESTMapper
Typer runtime.ObjectTyper
Client kubectl.RESTClient
Describer kubectl.Describer
Printer kubectl.ResourcePrinter
Validator validation.Schema
Namespace string
ClientConfig *client.Config
Err error
}
func NewTestFactory() (*cmdutil.Factory, *testFactory, runtime.Codec) {
scheme, mapper, codec := newExternalScheme()
t := &testFactory{
Validator: validation.NullSchema{},
Mapper: mapper,
Typer: scheme,
}
return &cmdutil.Factory{
Object: func() (meta.RESTMapper, runtime.ObjectTyper) {
return t.Mapper, t.Typer
},
ClientForMapping: func(*meta.RESTMapping) (resource.RESTClient, error) {
return t.Client, t.Err
},
Decoder: func(bool) runtime.Decoder {
return codec
},
JSONEncoder: func() runtime.Encoder {
return codec
},
Describer: func(*meta.RESTMapping) (kubectl.Describer, error) {
return t.Describer, t.Err
},
Printer: func(mapping *meta.RESTMapping, noHeaders, withNamespace bool, wide bool, showAll bool, absoluteTimestamps bool, columnLabels []string) (kubectl.ResourcePrinter, error) {
return t.Printer, t.Err
},
Validator: func(validate bool, cacheDir string) (validation.Schema, error) {
return t.Validator, t.Err
},
DefaultNamespace: func() (string, bool, error) {
return t.Namespace, false, t.Err
},
ClientConfig: func() (*client.Config, error) {
return t.ClientConfig, t.Err
},
}, t, codec
}
func NewMixedFactory(apiClient resource.RESTClient) (*cmdutil.Factory, *testFactory, runtime.Codec) {
f, t, c := NewTestFactory()
f.Object = func() (meta.RESTMapper, runtime.ObjectTyper) {
return meta.MultiRESTMapper{t.Mapper, testapi.Default.RESTMapper()}, runtime.MultiObjectTyper{t.Typer, api.Scheme}
}
f.ClientForMapping = func(m *meta.RESTMapping) (resource.RESTClient, error) {
if m.ObjectConvertor == api.Scheme {
return apiClient, t.Err
}
return t.Client, t.Err
}
return f, t, c
}
func NewAPIFactory() (*cmdutil.Factory, *testFactory, runtime.Codec) {
t := &testFactory{
Validator: validation.NullSchema{},
}
f := &cmdutil.Factory{
Object: func() (meta.RESTMapper, runtime.ObjectTyper) {
return testapi.Default.RESTMapper(), api.Scheme
},
Client: func() (*client.Client, error) {
// Swap out the HTTP client out of the client with the fake's version.
fakeClient := t.Client.(*fake.RESTClient)
c := client.NewOrDie(t.ClientConfig)
c.Client = fakeClient.Client
c.ExtensionsClient.Client = fakeClient.Client
return c, t.Err
},
ClientForMapping: func(*meta.RESTMapping) (resource.RESTClient, error) {
return t.Client, t.Err
},
Decoder: func(bool) runtime.Decoder {
return testapi.Default.Codec()
},
JSONEncoder: func() runtime.Encoder {
return testapi.Default.Codec()
},
Describer: func(*meta.RESTMapping) (kubectl.Describer, error) {
return t.Describer, t.Err
},
Printer: func(mapping *meta.RESTMapping, noHeaders, withNamespace bool, wide bool, showAll bool, absoluteTimestamps bool, columnLabels []string) (kubectl.ResourcePrinter, error) {
return t.Printer, t.Err
},
Validator: func(validate bool, cacheDir string) (validation.Schema, error) {
return t.Validator, t.Err
},
DefaultNamespace: func() (string, bool, error) {
return t.Namespace, false, t.Err
},
ClientConfig: func() (*client.Config, error) {
return t.ClientConfig, t.Err
},
Generators: func(cmdName string) map[string]kubectl.Generator {
return cmdutil.DefaultGenerators(cmdName)
},
LogsForObject: func(object, options runtime.Object) (*client.Request, error) {
fakeClient := t.Client.(*fake.RESTClient)
c := client.NewOrDie(t.ClientConfig)
c.Client = fakeClient.Client
switch t := object.(type) {
case *api.Pod:
opts, ok := options.(*api.PodLogOptions)
if !ok {
return nil, errors.New("provided options object is not a PodLogOptions")
}
return c.Pods(t.Namespace).GetLogs(t.Name, opts), nil
default:
fqKind, err := api.Scheme.ObjectKind(object)
if err != nil {
return nil, err
}
return nil, fmt.Errorf("cannot get the logs from %v", fqKind)
}
},
}
rf := cmdutil.NewFactory(nil)
f.PodSelectorForObject = rf.PodSelectorForObject
f.PortsForObject = rf.PortsForObject
f.LabelsForObject = rf.LabelsForObject
f.CanBeExposed = rf.CanBeExposed
return f, t, testapi.Default.Codec()
}
func objBody(codec runtime.Codec, obj runtime.Object) io.ReadCloser {
return ioutil.NopCloser(bytes.NewReader([]byte(runtime.EncodeOrDie(codec, obj))))
}
func stringBody(body string) io.ReadCloser {
return ioutil.NopCloser(bytes.NewReader([]byte(body)))
}
// TODO(jlowdermilk): refactor the Factory so we can test client versions properly,
// with different client/server version skew scenarios.
// Verify that resource.RESTClients constructed from a factory respect mapping.APIVersion
//func TestClientVersions(t *testing.T) {
// f := cmdutil.NewFactory(nil)
//
// version := testapi.Default.Version()
// mapping := &meta.RESTMapping{
// APIVersion: version,
// }
// c, err := f.ClientForMapping(mapping)
// if err != nil {
// t.Errorf("unexpected error: %v", err)
// }
// client := c.(*client.RESTClient)
// if client.APIVersion() != version {
// t.Errorf("unexpected Client APIVersion: %s %v", client.APIVersion, client)
// }
//}
func ExamplePrintReplicationControllerWithNamespace() {
f, tf, codec := NewAPIFactory()
tf.Printer = kubectl.NewHumanReadablePrinter(false, true, false, false, false, []string{})
tf.Client = &fake.RESTClient{
Codec: codec,
Client: nil,
}
cmd := NewCmdRun(f, os.Stdin, os.Stdout, os.Stderr)
ctrl := &api.ReplicationController{
ObjectMeta: api.ObjectMeta{
Name: "foo",
Namespace: "beep",
Labels: map[string]string{"foo": "bar"},
CreationTimestamp: unversioned.Time{Time: time.Now().AddDate(-10, 0, 0)},
},
Spec: api.ReplicationControllerSpec{
Replicas: 1,
Selector: map[string]string{"foo": "bar"},
Template: &api.PodTemplateSpec{
ObjectMeta: api.ObjectMeta{
Labels: map[string]string{"foo": "bar"},
},
Spec: api.PodSpec{
Containers: []api.Container{
{
Name: "foo",
Image: "someimage",
},
},
},
},
},
}
err := f.PrintObject(cmd, ctrl, os.Stdout)
if err != nil {
fmt.Printf("Unexpected error: %v", err)
}
// Output:
// NAMESPACE CONTROLLER CONTAINER(S) IMAGE(S) SELECTOR REPLICAS AGE
// beep foo foo someimage foo=bar 1 10y
}
func ExamplePrintPodWithWideFormat() {
f, tf, codec := NewAPIFactory()
tf.Printer = kubectl.NewHumanReadablePrinter(false, false, true, false, false, []string{})
tf.Client = &fake.RESTClient{
Codec: codec,
Client: nil,
}
nodeName := "kubernetes-minion-abcd"
cmd := NewCmdRun(f, os.Stdin, os.Stdout, os.Stderr)
pod := &api.Pod{
ObjectMeta: api.ObjectMeta{
Name: "test1",
CreationTimestamp: unversioned.Time{Time: time.Now().AddDate(-10, 0, 0)},
},
Spec: api.PodSpec{
Containers: make([]api.Container, 2),
NodeName: nodeName,
},
Status: api.PodStatus{
Phase: "podPhase",
ContainerStatuses: []api.ContainerStatus{
{Ready: true, RestartCount: 3, State: api.ContainerState{Running: &api.ContainerStateRunning{}}},
{RestartCount: 3},
},
},
}
err := f.PrintObject(cmd, pod, os.Stdout)
if err != nil {
fmt.Printf("Unexpected error: %v", err)
}
// Output:
// NAME READY STATUS RESTARTS AGE NODE
// test1 1/2 podPhase 6 10y kubernetes-minion-abcd
}
func newAllPhasePodList() *api.PodList {
nodeName := "kubernetes-minion-abcd"
return &api.PodList{
Items: []api.Pod{
{
ObjectMeta: api.ObjectMeta{
Name: "test1",
CreationTimestamp: unversioned.Time{time.Now().AddDate(-10, 0, 0)},
},
Spec: api.PodSpec{
Containers: make([]api.Container, 2),
NodeName: nodeName,
},
Status: api.PodStatus{
Phase: api.PodPending,
ContainerStatuses: []api.ContainerStatus{
{Ready: true, RestartCount: 3, State: api.ContainerState{Running: &api.ContainerStateRunning{}}},
{RestartCount: 3},
},
},
},
{
ObjectMeta: api.ObjectMeta{
Name: "test2",
CreationTimestamp: unversioned.Time{time.Now().AddDate(-10, 0, 0)},
},
Spec: api.PodSpec{
Containers: make([]api.Container, 2),
NodeName: nodeName,
},
Status: api.PodStatus{
Phase: api.PodRunning,
ContainerStatuses: []api.ContainerStatus{
{Ready: true, RestartCount: 3, State: api.ContainerState{Running: &api.ContainerStateRunning{}}},
{RestartCount: 3},
},
},
},
{
ObjectMeta: api.ObjectMeta{
Name: "test3",
CreationTimestamp: unversioned.Time{time.Now().AddDate(-10, 0, 0)},
},
Spec: api.PodSpec{
Containers: make([]api.Container, 2),
NodeName: nodeName,
},
Status: api.PodStatus{
Phase: api.PodSucceeded,
ContainerStatuses: []api.ContainerStatus{
{Ready: true, RestartCount: 3, State: api.ContainerState{Running: &api.ContainerStateRunning{}}},
{RestartCount: 3},
},
},
},
{
ObjectMeta: api.ObjectMeta{
Name: "test4",
CreationTimestamp: unversioned.Time{time.Now().AddDate(-10, 0, 0)},
},
Spec: api.PodSpec{
Containers: make([]api.Container, 2),
NodeName: nodeName,
},
Status: api.PodStatus{
Phase: api.PodFailed,
ContainerStatuses: []api.ContainerStatus{
{Ready: true, RestartCount: 3, State: api.ContainerState{Running: &api.ContainerStateRunning{}}},
{RestartCount: 3},
},
},
},
{
ObjectMeta: api.ObjectMeta{
Name: "test5",
CreationTimestamp: unversioned.Time{time.Now().AddDate(-10, 0, 0)},
},
Spec: api.PodSpec{
Containers: make([]api.Container, 2),
NodeName: nodeName,
},
Status: api.PodStatus{
Phase: api.PodUnknown,
ContainerStatuses: []api.ContainerStatus{
{Ready: true, RestartCount: 3, State: api.ContainerState{Running: &api.ContainerStateRunning{}}},
{RestartCount: 3},
},
},
}},
}
}
func ExamplePrintPodHideTerminated() {
f, tf, codec := NewAPIFactory()
tf.Printer = kubectl.NewHumanReadablePrinter(false, false, false, false, false, []string{})
tf.Client = &fake.RESTClient{
Codec: codec,
Client: nil,
}
cmd := NewCmdRun(f, os.Stdin, os.Stdout, os.Stderr)
podList := newAllPhasePodList()
err := f.PrintObject(cmd, podList, os.Stdout)
if err != nil {
fmt.Printf("Unexpected error: %v", err)
}
// Output:
// NAME READY STATUS RESTARTS AGE
// test1 1/2 Pending 6 10y
// test2 1/2 Running 6 10y
// test5 1/2 Unknown 6 10y
}
func ExamplePrintPodShowAll() {
f, tf, codec := NewAPIFactory()
tf.Printer = kubectl.NewHumanReadablePrinter(false, false, false, true, false, []string{})
tf.Client = &fake.RESTClient{
Codec: codec,
Client: nil,
}
cmd := NewCmdRun(f, os.Stdin, os.Stdout, os.Stderr)
podList := newAllPhasePodList()
err := f.PrintObject(cmd, podList, os.Stdout)
if err != nil {
fmt.Printf("Unexpected error: %v", err)
}
// Output:
// NAME READY STATUS RESTARTS AGE
// test1 1/2 Pending 6 10y
// test2 1/2 Running 6 10y
// test3 1/2 Succeeded 6 10y
// test4 1/2 Failed 6 10y
// test5 1/2 Unknown 6 10y
}
func ExamplePrintServiceWithNamespacesAndLabels() {
f, tf, codec := NewAPIFactory()
tf.Printer = kubectl.NewHumanReadablePrinter(false, true, false, false, false, []string{"l1"})
tf.Client = &fake.RESTClient{
Codec: codec,
Client: nil,
}
cmd := NewCmdRun(f, os.Stdin, os.Stdout, os.Stderr)
svc := &api.ServiceList{
Items: []api.Service{
{
ObjectMeta: api.ObjectMeta{
Name: "svc1",
Namespace: "ns1",
CreationTimestamp: unversioned.Time{Time: time.Now().AddDate(-10, 0, 0)},
Labels: map[string]string{
"l1": "value",
},
},
Spec: api.ServiceSpec{
Ports: []api.ServicePort{
{Protocol: "UDP", Port: 53},
{Protocol: "TCP", Port: 53},
},
Selector: map[string]string{
"s": "magic",
},
ClusterIP: "10.1.1.1",
},
Status: api.ServiceStatus{},
},
{
ObjectMeta: api.ObjectMeta{
Name: "svc2",
Namespace: "ns2",
CreationTimestamp: unversioned.Time{Time: time.Now().AddDate(-10, 0, 0)},
Labels: map[string]string{
"l1": "dolla-bill-yall",
},
},
Spec: api.ServiceSpec{
Ports: []api.ServicePort{
{Protocol: "TCP", Port: 80},
{Protocol: "TCP", Port: 8080},
},
Selector: map[string]string{
"s": "kazam",
},
ClusterIP: "10.1.1.2",
},
Status: api.ServiceStatus{},
}},
}
ld := util.NewLineDelimiter(os.Stdout, "|")
defer ld.Flush()
err := f.PrintObject(cmd, svc, ld)
if err != nil {
fmt.Printf("Unexpected error: %v", err)
}
// Output:
// |NAMESPACE NAME CLUSTER-IP EXTERNAL-IP PORT(S) SELECTOR AGE L1|
// |ns1 svc1 10.1.1.1 unknown 53/UDP,53/TCP s=magic 10y value|
// |ns2 svc2 10.1.1.2 unknown 80/TCP,8080/TCP s=kazam 10y dolla-bill-yall|
// ||
}
func TestNormalizationFuncGlobalExistence(t *testing.T) {
// This test can be safely deleted when we will not support multiple flag formats
root := NewKubectlCommand(cmdutil.NewFactory(nil), os.Stdin, os.Stdout, os.Stderr)
if root.Parent() != nil {
t.Fatal("We expect the root command to be returned")
}
if root.GlobalNormalizationFunc() == nil {
t.Fatal("We expect that root command has a global normalization function")
}
if reflect.ValueOf(root.GlobalNormalizationFunc()).Pointer() != reflect.ValueOf(root.Flags().GetNormalizeFunc()).Pointer() {
t.Fatal("root command seems to have a wrong normalization function")
}
sub := root
for sub.HasSubCommands() {
sub = sub.Commands()[0]
}
// In case of failure of this test check this PR: spf13/cobra#110
if reflect.ValueOf(sub.Flags().GetNormalizeFunc()).Pointer() != reflect.ValueOf(root.Flags().GetNormalizeFunc()).Pointer() {
t.Fatal("child and root commands should have the same normalization functions")
}
}