86 lines
1.7 KiB
Go
86 lines
1.7 KiB
Go
package supervisor
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import (
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"sync"
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"time"
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"github.com/Sirupsen/logrus"
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"github.com/docker/containerd/runtime"
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)
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type Worker interface {
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Start()
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}
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type StartTask struct {
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Container runtime.Container
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Checkpoint string
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IO *runtime.IO
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Stdin string
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Stdout string
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Stderr string
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Err chan error
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StartResponse chan StartResponse
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}
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func NewWorker(s *Supervisor, wg *sync.WaitGroup) Worker {
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return &worker{
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s: s,
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wg: wg,
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}
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}
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type worker struct {
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wg *sync.WaitGroup
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s *Supervisor
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}
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func (w *worker) Start() {
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defer w.wg.Done()
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for t := range w.s.tasks {
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started := time.Now()
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l, err := w.s.copyIO(t.Stdin, t.Stdout, t.Stderr, t.IO)
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if err != nil {
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evt := NewEvent(DeleteEventType)
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evt.ID = t.Container.ID()
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w.s.SendEvent(evt)
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t.Err <- err
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continue
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}
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w.s.containers[t.Container.ID()].copier = l
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if t.Checkpoint != "" {
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if err := t.Container.Restore(t.Checkpoint); err != nil {
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evt := NewEvent(DeleteEventType)
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evt.ID = t.Container.ID()
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w.s.SendEvent(evt)
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t.Err <- err
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continue
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}
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} else {
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if err := t.Container.Start(); err != nil {
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evt := NewEvent(DeleteEventType)
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evt.ID = t.Container.ID()
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w.s.SendEvent(evt)
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t.Err <- err
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continue
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}
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}
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pid, err := t.Container.Pid()
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if err != nil {
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logrus.WithField("error", err).Error("containerd: get container main pid")
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}
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if w.s.notifier != nil {
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n, err := t.Container.OOM()
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if err != nil {
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logrus.WithField("error", err).Error("containerd: notify OOM events")
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} else {
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w.s.notifier.Add(t.Container.ID(), n)
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}
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}
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ContainerStartTimer.UpdateSince(started)
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t.Err <- nil
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t.StartResponse <- StartResponse{
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Pid: pid,
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}
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}
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}
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