containerd/supervisor/add_process.go

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package supervisor
import (
"time"
"github.com/docker/containerd/runtime"
"github.com/docker/containerd/specs"
)
// AddProcessTask holds everything necessary to add a process to a
// container
type AddProcessTask struct {
baseTask
ID string
PID string
Stdout string
Stderr string
Stdin string
ProcessSpec *specs.ProcessSpec
StartResponse chan StartResponse
}
func (s *Supervisor) addProcess(t *AddProcessTask) error {
ci, ok := s.containers[t.ID]
if !ok {
return ErrContainerNotFound
}
process, err := ci.container.Exec(t.PID, *t.ProcessSpec, runtime.NewStdio(t.Stdin, t.Stdout, t.Stderr))
if err != nil {
return err
}
if err := s.monitor.Add(process); err != nil {
return err
}
t.StartResponse <- StartResponse{}
s.notifySubscribers(Event{
Timestamp: time.Now(),
Type: StateStartProcess,
PID: t.PID,
ID: t.ID,
})
return nil
}