k3s/pkg/kubectl/stop_test.go

659 lines
20 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 kubectl
import (
"fmt"
"reflect"
"testing"
"time"
"k8s.io/kubernetes/pkg/api"
"k8s.io/kubernetes/pkg/api/unversioned"
"k8s.io/kubernetes/pkg/apis/extensions"
client "k8s.io/kubernetes/pkg/client/unversioned"
"k8s.io/kubernetes/pkg/client/unversioned/testclient"
"k8s.io/kubernetes/pkg/runtime"
)
const (
name = "foo"
)
func overlappingButSafe() *api.ReplicationControllerList {
return &api.ReplicationControllerList{
Items: []api.ReplicationController{
{
ObjectMeta: api.ObjectMeta{
Name: name,
Namespace: api.NamespaceDefault,
},
Spec: api.ReplicationControllerSpec{
Replicas: 1,
Selector: map[string]string{"k1": "v1", "k2": "v2"}},
},
{
ObjectMeta: api.ObjectMeta{
Name: "baz",
Namespace: api.NamespaceDefault,
},
Spec: api.ReplicationControllerSpec{
Replicas: 2,
Selector: map[string]string{"k1": "v1", "k2": "v2", "k3": "v3"}},
},
{
ObjectMeta: api.ObjectMeta{
Name: "zaz",
Namespace: api.NamespaceDefault,
},
Spec: api.ReplicationControllerSpec{
Replicas: 3,
Selector: map[string]string{"k1": "v1"}},
},
},
}
}
func exactMatches() *api.ReplicationControllerList {
return &api.ReplicationControllerList{
Items: []api.ReplicationController{
{
ObjectMeta: api.ObjectMeta{
Name: "zaz",
Namespace: api.NamespaceDefault,
},
Spec: api.ReplicationControllerSpec{
Replicas: 3,
Selector: map[string]string{"k1": "v1"}},
},
{
ObjectMeta: api.ObjectMeta{
Name: name,
Namespace: api.NamespaceDefault,
},
Spec: api.ReplicationControllerSpec{
Replicas: 3,
Selector: map[string]string{"k1": "v1"}},
},
},
}
}
func TestReplicationControllerStop(t *testing.T) {
// test data
toBeReaped := &api.ReplicationController{
ObjectMeta: api.ObjectMeta{
Name: name,
Namespace: api.NamespaceDefault,
},
Spec: api.ReplicationControllerSpec{
Replicas: 5,
Selector: map[string]string{"k1": "v1"}},
}
reaped := &api.ReplicationController{
ObjectMeta: api.ObjectMeta{
Name: name,
Namespace: api.NamespaceDefault,
},
Spec: api.ReplicationControllerSpec{
Replicas: 0,
Selector: map[string]string{"k1": "v1"}},
}
noOverlapping := &api.ReplicationController{
ObjectMeta: api.ObjectMeta{
Name: "baz",
Namespace: api.NamespaceDefault,
},
Spec: api.ReplicationControllerSpec{
Replicas: 3,
Selector: map[string]string{"k3": "v3"}},
}
overlapping := &api.ReplicationController{
ObjectMeta: api.ObjectMeta{
Name: "baz",
Namespace: api.NamespaceDefault,
},
Spec: api.ReplicationControllerSpec{
Replicas: 2,
Selector: map[string]string{"k1": "v1", "k2": "v2"}},
}
// tests
tests := []struct {
Name string
Fns []testclient.ReactionFunc
StopError error
ExpectedActions []testclient.Action
}{
{
Name: "OnlyOneRC",
Fns: []testclient.ReactionFunc{
// GET rc
func(action testclient.Action) (handled bool, ret runtime.Object, err error) {
return true, toBeReaped, nil
},
// LIST rc
func(action testclient.Action) (handled bool, ret runtime.Object, err error) {
return true, &api.ReplicationControllerList{
Items: []api.ReplicationController{*toBeReaped}}, nil
},
// GET rc
func(action testclient.Action) (handled bool, ret runtime.Object, err error) {
return true, toBeReaped, nil
},
// UPDATE rc
func(action testclient.Action) (handled bool, ret runtime.Object, err error) {
return true, reaped, nil
},
// GET rc
func(action testclient.Action) (handled bool, ret runtime.Object, err error) {
return true, reaped, nil
},
// GET rc
func(action testclient.Action) (handled bool, ret runtime.Object, err error) {
return true, reaped, nil
},
// DELETE rc
func(action testclient.Action) (handled bool, ret runtime.Object, err error) {
return true, reaped, nil
},
},
StopError: nil,
ExpectedActions: []testclient.Action{
testclient.NewGetAction("replicationcontrollers", api.NamespaceDefault, name),
testclient.NewListAction("replicationcontrollers", api.NamespaceDefault, api.ListOptions{}),
testclient.NewGetAction("replicationcontrollers", api.NamespaceDefault, name),
testclient.NewUpdateAction("replicationcontrollers", api.NamespaceDefault, reaped),
testclient.NewGetAction("replicationcontrollers", api.NamespaceDefault, name),
testclient.NewGetAction("replicationcontrollers", api.NamespaceDefault, name),
testclient.NewDeleteAction("replicationcontrollers", api.NamespaceDefault, name),
},
},
{
Name: "RCWithNoPods",
Fns: []testclient.ReactionFunc{
// GET rc
func(action testclient.Action) (handled bool, ret runtime.Object, err error) {
return true, reaped, nil
},
// LIST rc
func(action testclient.Action) (handled bool, ret runtime.Object, err error) {
return true, &api.ReplicationControllerList{
Items: []api.ReplicationController{*reaped}}, nil
},
// GET rc
func(action testclient.Action) (handled bool, ret runtime.Object, err error) {
return true, reaped, nil
},
// DELETE rc
func(action testclient.Action) (handled bool, ret runtime.Object, err error) {
return true, reaped, nil
},
},
StopError: nil,
ExpectedActions: []testclient.Action{
testclient.NewGetAction("replicationcontrollers", api.NamespaceDefault, name),
testclient.NewListAction("replicationcontrollers", api.NamespaceDefault, api.ListOptions{}),
testclient.NewGetAction("replicationcontrollers", api.NamespaceDefault, name),
testclient.NewDeleteAction("replicationcontrollers", api.NamespaceDefault, name),
},
},
{
Name: "NoOverlapping",
Fns: []testclient.ReactionFunc{
// GET rc
func(action testclient.Action) (handled bool, ret runtime.Object, err error) {
return true, toBeReaped, nil
},
// LIST rc
func(action testclient.Action) (handled bool, ret runtime.Object, err error) {
return true, &api.ReplicationControllerList{
Items: []api.ReplicationController{*toBeReaped, *noOverlapping}}, nil
},
// GET rc
func(action testclient.Action) (handled bool, ret runtime.Object, err error) {
return true, toBeReaped, nil
},
// UPDATE rc
func(action testclient.Action) (handled bool, ret runtime.Object, err error) {
return true, reaped, nil
},
// GET rc
func(action testclient.Action) (handled bool, ret runtime.Object, err error) {
return true, reaped, nil
},
// GET rc
func(action testclient.Action) (handled bool, ret runtime.Object, err error) {
return true, reaped, nil
},
// DELETE rc
func(action testclient.Action) (handled bool, ret runtime.Object, err error) {
return true, reaped, nil
},
},
StopError: nil,
ExpectedActions: []testclient.Action{
testclient.NewGetAction("replicationcontrollers", api.NamespaceDefault, name),
testclient.NewListAction("replicationcontrollers", api.NamespaceDefault, api.ListOptions{}),
testclient.NewGetAction("replicationcontrollers", api.NamespaceDefault, name),
testclient.NewUpdateAction("replicationcontrollers", api.NamespaceDefault, reaped),
testclient.NewGetAction("replicationcontrollers", api.NamespaceDefault, name),
testclient.NewGetAction("replicationcontrollers", api.NamespaceDefault, name),
testclient.NewDeleteAction("replicationcontrollers", api.NamespaceDefault, name),
},
},
{
Name: "OverlappingError",
Fns: []testclient.ReactionFunc{
// GET rc
func(action testclient.Action) (handled bool, ret runtime.Object, err error) {
return true, toBeReaped, nil
},
// LIST rc
func(action testclient.Action) (handled bool, ret runtime.Object, err error) {
return true, &api.ReplicationControllerList{
Items: []api.ReplicationController{*toBeReaped, *overlapping}}, nil
},
},
StopError: fmt.Errorf("Detected overlapping controllers for rc foo: baz, please manage deletion individually with --cascade=false."),
ExpectedActions: []testclient.Action{
testclient.NewGetAction("replicationcontrollers", api.NamespaceDefault, name),
testclient.NewListAction("replicationcontrollers", api.NamespaceDefault, api.ListOptions{}),
},
},
{
Name: "OverlappingButSafeDelete",
Fns: []testclient.ReactionFunc{
// GET rc
func(action testclient.Action) (handled bool, ret runtime.Object, err error) {
return true, &overlappingButSafe().Items[0], nil
},
// LIST rc
func(action testclient.Action) (handled bool, ret runtime.Object, err error) {
return true, overlappingButSafe(), nil
},
},
StopError: fmt.Errorf("Detected overlapping controllers for rc foo: baz,zaz, please manage deletion individually with --cascade=false."),
ExpectedActions: []testclient.Action{
testclient.NewGetAction("replicationcontrollers", api.NamespaceDefault, name),
testclient.NewListAction("replicationcontrollers", api.NamespaceDefault, api.ListOptions{}),
},
},
{
Name: "TwoExactMatchRCs",
Fns: []testclient.ReactionFunc{
// GET rc
func(action testclient.Action) (handled bool, ret runtime.Object, err error) {
return true, toBeReaped, nil
},
// LIST rc
func(action testclient.Action) (handled bool, ret runtime.Object, err error) {
return true, exactMatches(), nil
},
// GET rc
func(action testclient.Action) (handled bool, ret runtime.Object, err error) {
return true, reaped, nil
},
},
StopError: nil,
ExpectedActions: []testclient.Action{
testclient.NewGetAction("replicationcontrollers", api.NamespaceDefault, name),
testclient.NewListAction("replicationcontrollers", api.NamespaceDefault, api.ListOptions{}),
testclient.NewDeleteAction("replicationcontrollers", api.NamespaceDefault, name),
},
},
}
for _, test := range tests {
toBeReaped.Spec.Replicas = 5
fake := &testclient.Fake{}
for i, reaction := range test.Fns {
fake.AddReactor(test.ExpectedActions[i].GetVerb(), test.ExpectedActions[i].GetResource(), reaction)
}
reaper := ReplicationControllerReaper{fake, time.Millisecond, time.Millisecond}
err := reaper.Stop(api.NamespaceDefault, name, 0, nil)
if !reflect.DeepEqual(err, test.StopError) {
t.Errorf("%s: unexpected error: %v", test.Name, err)
continue
}
actions := fake.Actions()
if len(test.ExpectedActions) != len(actions) {
t.Errorf("%s: unexpected actions:\n%v\nexpected\n%v\n", test.Name, actions, test.ExpectedActions)
}
for i, action := range actions {
testAction := test.ExpectedActions[i]
if !testAction.Matches(action.GetVerb(), action.GetResource()) {
t.Errorf("%s: unexpected action: %#v; expected %v", test.Name, action, testAction)
}
}
}
}
func TestJobStop(t *testing.T) {
zero := 0
one := 1
toBeReaped := &extensions.Job{
ObjectMeta: api.ObjectMeta{
Name: name,
Namespace: api.NamespaceDefault,
},
Spec: extensions.JobSpec{
Parallelism: &one,
Selector: &extensions.LabelSelector{
MatchLabels: map[string]string{"k1": "v1"},
},
},
}
reaped := &extensions.Job{
ObjectMeta: api.ObjectMeta{
Name: name,
Namespace: api.NamespaceDefault,
},
Spec: extensions.JobSpec{
Parallelism: &zero,
Selector: &extensions.LabelSelector{
MatchLabels: map[string]string{"k1": "v1"},
},
},
}
tests := []struct {
Name string
Fns []testclient.ReactionFunc
StopError error
ExpectedActions []testclient.Action
}{
{
Name: "OnlyOneJob",
Fns: []testclient.ReactionFunc{
// GET job
func(action testclient.Action) (handled bool, ret runtime.Object, err error) {
return true, toBeReaped, nil
},
// GET job
func(action testclient.Action) (handled bool, ret runtime.Object, err error) {
return true, toBeReaped, nil
},
// UPDATE job
func(action testclient.Action) (handled bool, ret runtime.Object, err error) {
*toBeReaped.Spec.Parallelism = 0
return true, toBeReaped, nil
},
// GET job
func(action testclient.Action) (handled bool, ret runtime.Object, err error) {
return true, toBeReaped, nil
},
// GET job
func(action testclient.Action) (handled bool, ret runtime.Object, err error) {
return true, toBeReaped, nil
},
// LIST pods
func(action testclient.Action) (handled bool, ret runtime.Object, err error) {
return true, &api.PodList{}, nil
},
// DELETE job
func(action testclient.Action) (handled bool, ret runtime.Object, err error) {
return true, toBeReaped, nil
},
},
StopError: nil,
ExpectedActions: []testclient.Action{
testclient.NewGetAction("jobs", api.NamespaceDefault, name),
testclient.NewGetAction("jobs", api.NamespaceDefault, name),
testclient.NewUpdateAction("jobs", api.NamespaceDefault, toBeReaped),
testclient.NewGetAction("jobs", api.NamespaceDefault, name),
testclient.NewGetAction("jobs", api.NamespaceDefault, name),
testclient.NewListAction("pods", api.NamespaceDefault, api.ListOptions{}),
testclient.NewDeleteAction("jobs", api.NamespaceDefault, name),
},
},
{
Name: "JobWithDeadPods",
Fns: []testclient.ReactionFunc{
// GET job
func(action testclient.Action) (handled bool, ret runtime.Object, err error) {
return true, toBeReaped, nil
},
// GET job
func(action testclient.Action) (handled bool, ret runtime.Object, err error) {
return true, toBeReaped, nil
},
// UPDATE job
func(action testclient.Action) (handled bool, ret runtime.Object, err error) {
*toBeReaped.Spec.Parallelism = 0
return true, toBeReaped, nil
},
// GET job
func(action testclient.Action) (handled bool, ret runtime.Object, err error) {
return true, toBeReaped, nil
},
// GET job
func(action testclient.Action) (handled bool, ret runtime.Object, err error) {
return true, toBeReaped, nil
},
// LIST pods
func(action testclient.Action) (handled bool, ret runtime.Object, err error) {
return true, &api.PodList{
Items: []api.Pod{
{
ObjectMeta: api.ObjectMeta{
Name: "pod1",
Namespace: api.NamespaceDefault,
Labels: map[string]string{"k1": "v1"},
},
},
},
}, nil
},
// DELETE pod
func(action testclient.Action) (handled bool, ret runtime.Object, err error) {
return true, nil, nil
},
// DELETE job
func(action testclient.Action) (handled bool, ret runtime.Object, err error) {
return true, toBeReaped, nil
},
},
StopError: nil,
ExpectedActions: []testclient.Action{
testclient.NewGetAction("jobs", api.NamespaceDefault, name),
testclient.NewGetAction("jobs", api.NamespaceDefault, name),
testclient.NewUpdateAction("jobs", api.NamespaceDefault, toBeReaped),
testclient.NewGetAction("jobs", api.NamespaceDefault, name),
testclient.NewGetAction("jobs", api.NamespaceDefault, name),
testclient.NewListAction("pods", api.NamespaceDefault, api.ListOptions{}),
testclient.NewDeleteAction("pods", api.NamespaceDefault, name),
testclient.NewDeleteAction("jobs", api.NamespaceDefault, name),
},
},
{
Name: "JobWithNoParallelism",
Fns: []testclient.ReactionFunc{
// GET job
func(action testclient.Action) (handled bool, ret runtime.Object, err error) {
return true, reaped, nil
},
// GET job
func(action testclient.Action) (handled bool, ret runtime.Object, err error) {
return true, reaped, nil
},
// LIST pods
func(action testclient.Action) (handled bool, ret runtime.Object, err error) {
return true, &api.PodList{}, nil
},
// DELETE job
func(action testclient.Action) (handled bool, ret runtime.Object, err error) {
return true, reaped, nil
},
},
StopError: nil,
ExpectedActions: []testclient.Action{
testclient.NewGetAction("jobs", api.NamespaceDefault, name),
testclient.NewGetAction("jobs", api.NamespaceDefault, name),
testclient.NewListAction("pods", api.NamespaceDefault, api.ListOptions{}),
testclient.NewDeleteAction("jobs", api.NamespaceDefault, name),
},
},
}
for _, test := range tests {
*toBeReaped.Spec.Parallelism = one
fake := &testclient.Fake{}
for i, reaction := range test.Fns {
fake.AddReactor(test.ExpectedActions[i].GetVerb(), test.ExpectedActions[i].GetResource(), reaction)
}
reaper := JobReaper{fake, time.Millisecond, time.Millisecond}
err := reaper.Stop(api.NamespaceDefault, name, 0, nil)
if !reflect.DeepEqual(err, test.StopError) {
t.Errorf("%s unexpected error: %v", test.Name, err)
continue
}
actions := fake.Actions()
if len(test.ExpectedActions) != len(actions) {
t.Errorf("%s: unexpected actions:\n%v\nexpected\n%v\n", test.Name, actions, test.ExpectedActions)
}
for i, action := range actions {
testAction := test.ExpectedActions[i]
if !testAction.Matches(action.GetVerb(), action.GetResource()) {
t.Errorf("%s: unexpected action: %#v; expected %v", test.Name, action, testAction)
}
}
}
}
type noSuchPod struct {
*testclient.FakePods
}
func (c *noSuchPod) Get(name string) (*api.Pod, error) {
return nil, fmt.Errorf("%s does not exist", name)
}
type noDeleteService struct {
*testclient.FakeServices
}
func (c *noDeleteService) Delete(service string) error {
return fmt.Errorf("I'm afraid I can't do that, Dave")
}
type reaperFake struct {
*testclient.Fake
noSuchPod, noDeleteService bool
}
func (c *reaperFake) Pods(namespace string) client.PodInterface {
pods := &testclient.FakePods{Fake: c.Fake, Namespace: namespace}
if c.noSuchPod {
return &noSuchPod{pods}
}
return pods
}
func (c *reaperFake) Services(namespace string) client.ServiceInterface {
services := &testclient.FakeServices{Fake: c.Fake, Namespace: namespace}
if c.noDeleteService {
return &noDeleteService{services}
}
return services
}
func TestSimpleStop(t *testing.T) {
tests := []struct {
fake *reaperFake
kind unversioned.GroupKind
actions []testclient.Action
expectError bool
test string
}{
{
fake: &reaperFake{
Fake: &testclient.Fake{},
},
kind: api.Kind("Pod"),
actions: []testclient.Action{
testclient.NewGetAction("pods", api.NamespaceDefault, "foo"),
testclient.NewDeleteAction("pods", api.NamespaceDefault, "foo"),
},
expectError: false,
test: "stop pod succeeds",
},
{
fake: &reaperFake{
Fake: &testclient.Fake{},
},
kind: api.Kind("Service"),
actions: []testclient.Action{
testclient.NewGetAction("services", api.NamespaceDefault, "foo"),
testclient.NewDeleteAction("services", api.NamespaceDefault, "foo"),
},
expectError: false,
test: "stop service succeeds",
},
{
fake: &reaperFake{
Fake: &testclient.Fake{},
noSuchPod: true,
},
kind: api.Kind("Pod"),
actions: []testclient.Action{},
expectError: true,
test: "stop pod fails, no pod",
},
{
fake: &reaperFake{
Fake: &testclient.Fake{},
noDeleteService: true,
},
kind: api.Kind("Service"),
actions: []testclient.Action{
testclient.NewGetAction("services", api.NamespaceDefault, "foo"),
},
expectError: true,
test: "stop service fails, can't delete",
},
}
for _, test := range tests {
fake := test.fake
reaper, err := ReaperFor(test.kind, fake)
if err != nil {
t.Errorf("unexpected error: %v (%s)", err, test.test)
}
err = reaper.Stop("default", "foo", 0, nil)
if err != nil && !test.expectError {
t.Errorf("unexpected error: %v (%s)", err, test.test)
}
if err == nil {
if test.expectError {
t.Errorf("unexpected non-error: %v (%s)", err, test.test)
}
}
actions := fake.Actions()
if len(test.actions) != len(actions) {
t.Errorf("unexpected actions: %v; expected %v (%s)", fake.Actions, test.actions, test.test)
}
for i, action := range actions {
testAction := test.actions[i]
if action != testAction {
t.Errorf("unexpected action: %#v; expected %v (%s)", action, testAction, test.test)
}
}
}
}