d656fa38ca
Introduce LogURIGenerator helper function in cio package. It is used in the restart options, like WithBinaryLogURI and WithFileLogURI. And restart.LogPathLabel might be used in production and work well. In order to reduce breaking change, the LogPathLabel is still recognized if new LogURILabel is not set. In next release 1.5, the LogPathLabel will be removed. Signed-off-by: Wei Fu <fuweid89@gmail.com>
95 lines
2.2 KiB
Go
95 lines
2.2 KiB
Go
/*
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Copyright The containerd 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 monitor
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import (
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"context"
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"net/url"
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"syscall"
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"github.com/containerd/containerd"
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"github.com/containerd/containerd/cio"
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"github.com/pkg/errors"
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"github.com/sirupsen/logrus"
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)
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type stopChange struct {
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container containerd.Container
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}
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func (s *stopChange) apply(ctx context.Context, client *containerd.Client) error {
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return killTask(ctx, s.container)
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}
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type startChange struct {
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container containerd.Container
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logURI string
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// Deprecated(in release 1.5): but recognized now, prefer to use logURI
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logPath string
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}
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func (s *startChange) apply(ctx context.Context, client *containerd.Client) error {
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log := cio.NullIO
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if s.logURI != "" {
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uri, err := url.Parse(s.logURI)
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if err != nil {
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return errors.Wrapf(err, "failed to parse %v into url", s.logURI)
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}
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log = cio.LogURI(uri)
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} else if s.logPath != "" {
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log = cio.LogFile(s.logPath)
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}
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if s.logURI != "" && s.logPath != "" {
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logrus.Warnf("LogPathLabel=%v has been deprecated, using LogURILabel=%v",
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s.logPath, s.logURI)
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}
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killTask(ctx, s.container)
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task, err := s.container.NewTask(ctx, log)
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if err != nil {
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return err
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}
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return task.Start(ctx)
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}
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func killTask(ctx context.Context, container containerd.Container) error {
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task, err := container.Task(ctx, nil)
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if err == nil {
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wait, err := task.Wait(ctx)
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if err != nil {
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if _, derr := task.Delete(ctx); derr == nil {
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return nil
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}
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return err
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}
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if err := task.Kill(ctx, syscall.SIGKILL, containerd.WithKillAll); err != nil {
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if _, derr := task.Delete(ctx); derr == nil {
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return nil
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}
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return err
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}
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<-wait
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if _, err := task.Delete(ctx); err != nil {
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return err
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}
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}
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return nil
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}
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