88 lines
2.1 KiB
Go
88 lines
2.1 KiB
Go
package supervisor
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import (
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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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// ExitTask holds needed parameters to execute the exit task
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type ExitTask struct {
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baseTask
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Process runtime.Process
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}
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func (s *Supervisor) exit(t *ExitTask) error {
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proc := t.Process
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status, err := proc.ExitStatus()
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if err != nil {
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logrus.WithFields(logrus.Fields{
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"error": err,
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"pid": proc.ID(),
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"id": proc.Container().ID(),
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"systemPid": proc.SystemPid(),
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}).Error("containerd: get exit status")
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}
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logrus.WithFields(logrus.Fields{
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"pid": proc.ID(),
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"status": status,
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"id": proc.Container().ID(),
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"systemPid": proc.SystemPid(),
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}).Debug("containerd: process exited")
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// if the process is the the init process of the container then
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// fire a separate event for this process
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if proc.ID() != runtime.InitProcessID {
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ne := &ExecExitTask{
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ID: proc.Container().ID(),
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PID: proc.ID(),
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Status: status,
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Process: proc,
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}
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s.execExit(ne)
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return nil
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}
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container := proc.Container()
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ne := &DeleteTask{
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ID: container.ID(),
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Status: status,
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PID: proc.ID(),
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Process: proc,
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}
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s.delete(ne)
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return nil
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}
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// ExecExitTask holds needed parameters to execute the exec exit task
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type ExecExitTask struct {
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baseTask
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ID string
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PID string
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Status uint32
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Process runtime.Process
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}
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func (s *Supervisor) execExit(t *ExecExitTask) error {
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container := t.Process.Container()
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// exec process: we remove this process without notifying the main event loop
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if err := container.RemoveProcess(t.PID); err != nil {
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logrus.WithField("error", err).Error("containerd: find container for pid")
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}
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// If the exec spawned children which are still using its IO
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// waiting here will block until they die or close their IO
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// descriptors.
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// Hence, we use a go routine to avoid block all other operations
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go func() {
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t.Process.Wait()
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s.notifySubscribers(Event{
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Timestamp: time.Now(),
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ID: t.ID,
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Type: StateExit,
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PID: t.PID,
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Status: t.Status,
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})
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}()
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return nil
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}
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