333 lines
9.5 KiB
Go
333 lines
9.5 KiB
Go
/*
|
|
Copyright 2017 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 server
|
|
|
|
import (
|
|
"errors"
|
|
"testing"
|
|
"time"
|
|
|
|
"github.com/containerd/containerd/api/services/execution"
|
|
"github.com/containerd/containerd/api/types/task"
|
|
imagespec "github.com/opencontainers/image-spec/specs-go/v1"
|
|
"github.com/stretchr/testify/assert"
|
|
"golang.org/x/net/context"
|
|
"golang.org/x/sys/unix"
|
|
"k8s.io/kubernetes/pkg/kubelet/apis/cri/v1alpha1/runtime"
|
|
|
|
servertesting "github.com/kubernetes-incubator/cri-containerd/pkg/server/testing"
|
|
containerstore "github.com/kubernetes-incubator/cri-containerd/pkg/store/container"
|
|
imagestore "github.com/kubernetes-incubator/cri-containerd/pkg/store/image"
|
|
)
|
|
|
|
func TestWaitContainerStop(t *testing.T) {
|
|
id := "test-id"
|
|
for desc, test := range map[string]struct {
|
|
status *containerstore.Status
|
|
cancel bool
|
|
timeout time.Duration
|
|
expectErr bool
|
|
}{
|
|
"should return error if timeout exceeds": {
|
|
status: &containerstore.Status{
|
|
CreatedAt: time.Now().UnixNano(),
|
|
StartedAt: time.Now().UnixNano(),
|
|
},
|
|
timeout: 2 * stopCheckPollInterval,
|
|
expectErr: true,
|
|
},
|
|
"should return error if context is cancelled": {
|
|
status: &containerstore.Status{
|
|
CreatedAt: time.Now().UnixNano(),
|
|
StartedAt: time.Now().UnixNano(),
|
|
},
|
|
timeout: time.Hour,
|
|
cancel: true,
|
|
expectErr: true,
|
|
},
|
|
"should not return error if container is removed before timeout": {
|
|
status: nil,
|
|
timeout: time.Hour,
|
|
expectErr: false,
|
|
},
|
|
"should not return error if container is stopped before timeout": {
|
|
status: &containerstore.Status{
|
|
CreatedAt: time.Now().UnixNano(),
|
|
StartedAt: time.Now().UnixNano(),
|
|
FinishedAt: time.Now().UnixNano(),
|
|
},
|
|
timeout: time.Hour,
|
|
expectErr: false,
|
|
},
|
|
} {
|
|
c := newTestCRIContainerdService()
|
|
if test.status != nil {
|
|
container, err := containerstore.NewContainer(
|
|
containerstore.Metadata{ID: id},
|
|
*test.status,
|
|
)
|
|
assert.NoError(t, err)
|
|
assert.NoError(t, c.containerStore.Add(container))
|
|
}
|
|
ctx := context.Background()
|
|
if test.cancel {
|
|
cancelledCtx, cancel := context.WithCancel(ctx)
|
|
cancel()
|
|
ctx = cancelledCtx
|
|
}
|
|
err := c.waitContainerStop(ctx, id, test.timeout)
|
|
assert.Equal(t, test.expectErr, err != nil, desc)
|
|
}
|
|
}
|
|
|
|
func TestStopContainer(t *testing.T) {
|
|
testID := "test-id"
|
|
testPid := uint32(1234)
|
|
testImageID := "test-image-id"
|
|
testStatus := containerstore.Status{
|
|
Pid: testPid,
|
|
CreatedAt: time.Now().UnixNano(),
|
|
StartedAt: time.Now().UnixNano(),
|
|
}
|
|
testImage := imagestore.Image{
|
|
ID: testImageID,
|
|
Config: &imagespec.ImageConfig{},
|
|
}
|
|
testContainer := task.Task{
|
|
ID: testID,
|
|
Pid: testPid,
|
|
Status: task.StatusRunning,
|
|
}
|
|
for desc, test := range map[string]struct {
|
|
status *containerstore.Status
|
|
containerdContainer *task.Task
|
|
stopSignal string
|
|
stopErr error
|
|
noTimeout bool
|
|
expectErr bool
|
|
expectCalls []servertesting.CalledDetail
|
|
}{
|
|
"should return error when container does not exist": {
|
|
status: nil,
|
|
expectErr: true,
|
|
expectCalls: []servertesting.CalledDetail{},
|
|
},
|
|
"should not return error when container is not running": {
|
|
status: &containerstore.Status{CreatedAt: time.Now().UnixNano()},
|
|
expectErr: false,
|
|
expectCalls: []servertesting.CalledDetail{},
|
|
},
|
|
"should not return error if containerd task does not exist": {
|
|
status: &testStatus,
|
|
containerdContainer: &testContainer,
|
|
// Since it's hard to inject event during `StopContainer` is running,
|
|
// we only test the case that first stop returns error, but container
|
|
// status is not updated yet.
|
|
// We also leverage this behavior to test that when graceful
|
|
// stop doesn't take effect, container should be SIGKILL-ed.
|
|
stopErr: servertesting.TaskNotExistError,
|
|
expectErr: false,
|
|
expectCalls: []servertesting.CalledDetail{
|
|
{
|
|
Name: "kill",
|
|
Argument: &execution.KillRequest{
|
|
ContainerID: testID,
|
|
Signal: uint32(unix.SIGTERM),
|
|
PidOrAll: &execution.KillRequest_All{All: true},
|
|
},
|
|
},
|
|
{
|
|
Name: "kill",
|
|
Argument: &execution.KillRequest{
|
|
ContainerID: testID,
|
|
Signal: uint32(unix.SIGKILL),
|
|
PidOrAll: &execution.KillRequest_All{All: true},
|
|
},
|
|
},
|
|
{
|
|
Name: "delete",
|
|
Argument: &execution.DeleteRequest{ContainerID: testID},
|
|
},
|
|
},
|
|
},
|
|
"should not return error if containerd task process already finished": {
|
|
status: &testStatus,
|
|
containerdContainer: &testContainer,
|
|
stopErr: errors.New("os: process already finished"),
|
|
expectErr: false,
|
|
expectCalls: []servertesting.CalledDetail{
|
|
{
|
|
Name: "kill",
|
|
Argument: &execution.KillRequest{
|
|
ContainerID: testID,
|
|
Signal: uint32(unix.SIGTERM),
|
|
PidOrAll: &execution.KillRequest_All{All: true},
|
|
},
|
|
},
|
|
{
|
|
Name: "kill",
|
|
Argument: &execution.KillRequest{
|
|
ContainerID: testID,
|
|
Signal: uint32(unix.SIGKILL),
|
|
PidOrAll: &execution.KillRequest_All{All: true},
|
|
},
|
|
},
|
|
{
|
|
Name: "delete",
|
|
Argument: &execution.DeleteRequest{ContainerID: testID},
|
|
},
|
|
},
|
|
},
|
|
"should return error if graceful stop returns random error": {
|
|
status: &testStatus,
|
|
containerdContainer: &testContainer,
|
|
stopErr: errors.New("random stop error"),
|
|
expectErr: true,
|
|
expectCalls: []servertesting.CalledDetail{
|
|
{
|
|
Name: "kill",
|
|
Argument: &execution.KillRequest{
|
|
ContainerID: testID,
|
|
Signal: uint32(unix.SIGTERM),
|
|
PidOrAll: &execution.KillRequest_All{All: true},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
"should not return error if containerd task is gracefully stopped": {
|
|
status: &testStatus,
|
|
containerdContainer: &testContainer,
|
|
expectErr: false,
|
|
// deleted by the event monitor.
|
|
expectCalls: []servertesting.CalledDetail{
|
|
{
|
|
Name: "kill",
|
|
Argument: &execution.KillRequest{
|
|
ContainerID: testID,
|
|
Signal: uint32(unix.SIGTERM),
|
|
PidOrAll: &execution.KillRequest_All{All: true},
|
|
},
|
|
},
|
|
{
|
|
Name: "delete",
|
|
Argument: &execution.DeleteRequest{ContainerID: testID},
|
|
},
|
|
},
|
|
},
|
|
"should use stop signal specified in image config if not empty": {
|
|
status: &testStatus,
|
|
containerdContainer: &testContainer,
|
|
stopSignal: "SIGHUP",
|
|
expectErr: false,
|
|
// deleted by the event monitor.
|
|
expectCalls: []servertesting.CalledDetail{
|
|
{
|
|
Name: "kill",
|
|
Argument: &execution.KillRequest{
|
|
ContainerID: testID,
|
|
Signal: uint32(unix.SIGHUP),
|
|
PidOrAll: &execution.KillRequest_All{All: true},
|
|
},
|
|
},
|
|
{
|
|
Name: "delete",
|
|
Argument: &execution.DeleteRequest{ContainerID: testID},
|
|
},
|
|
},
|
|
},
|
|
"should directly kill container if timeout is 0": {
|
|
status: &testStatus,
|
|
containerdContainer: &testContainer,
|
|
noTimeout: true,
|
|
expectErr: false,
|
|
expectCalls: []servertesting.CalledDetail{
|
|
{
|
|
Name: "kill",
|
|
Argument: &execution.KillRequest{
|
|
ContainerID: testID,
|
|
Signal: uint32(unix.SIGKILL),
|
|
PidOrAll: &execution.KillRequest_All{All: true},
|
|
},
|
|
},
|
|
{
|
|
Name: "delete",
|
|
Argument: &execution.DeleteRequest{ContainerID: testID},
|
|
},
|
|
},
|
|
},
|
|
// TODO(random-liu): Test "should return error if both failed" after we have
|
|
// fake clock for test.
|
|
} {
|
|
t.Logf("TestCase %q", desc)
|
|
c := newTestCRIContainerdService()
|
|
fake := servertesting.NewFakeExecutionClient().WithEvents()
|
|
defer fake.Stop()
|
|
c.taskService = fake
|
|
|
|
// Inject the container.
|
|
if test.status != nil {
|
|
cntr, err := containerstore.NewContainer(
|
|
containerstore.Metadata{
|
|
ID: testID,
|
|
ImageRef: testImageID,
|
|
},
|
|
*test.status,
|
|
)
|
|
assert.NoError(t, err)
|
|
assert.NoError(t, c.containerStore.Add(cntr))
|
|
}
|
|
// Inject containerd task.
|
|
if test.containerdContainer != nil {
|
|
fake.SetFakeTasks([]task.Task{*test.containerdContainer})
|
|
}
|
|
testImage.Config.StopSignal = test.stopSignal
|
|
c.imageStore.Add(testImage)
|
|
if test.stopErr != nil {
|
|
fake.InjectError("kill", test.stopErr)
|
|
}
|
|
eventClient, err := fake.Events(context.Background(), &execution.EventsRequest{})
|
|
assert.NoError(t, err)
|
|
// Start a simple test event monitor.
|
|
go func(e execution.Tasks_EventsClient) {
|
|
for {
|
|
if err := c.handleEventStream(e); err != nil { // nolint: vetshadow
|
|
return
|
|
}
|
|
}
|
|
}(eventClient)
|
|
fake.ClearCalls()
|
|
timeout := int64(1)
|
|
if test.noTimeout {
|
|
timeout = 0
|
|
}
|
|
// 1 second timeout should be enough for the unit test.
|
|
// TODO(random-liu): Use fake clock for this test.
|
|
resp, err := c.StopContainer(context.Background(), &runtime.StopContainerRequest{
|
|
ContainerId: testID,
|
|
Timeout: timeout,
|
|
})
|
|
if test.expectErr {
|
|
assert.Error(t, err)
|
|
assert.Nil(t, resp)
|
|
} else {
|
|
assert.NoError(t, err)
|
|
assert.NotNil(t, resp)
|
|
}
|
|
assert.Equal(t, test.expectCalls, fake.GetCalledDetails())
|
|
}
|
|
}
|