github.com/georgethebeatle/containerd@v0.2.5/supervisor/add_process.go (about)

     1  package supervisor
     2  
     3  import (
     4  	"time"
     5  
     6  	"github.com/docker/containerd/runtime"
     7  	"github.com/docker/containerd/specs"
     8  )
     9  
    10  // AddProcessTask holds everything necessary to add a process to a
    11  // container
    12  type AddProcessTask struct {
    13  	baseTask
    14  	ID            string
    15  	PID           string
    16  	Stdout        string
    17  	Stderr        string
    18  	Stdin         string
    19  	ProcessSpec   *specs.ProcessSpec
    20  	StartResponse chan StartResponse
    21  }
    22  
    23  func (s *Supervisor) addProcess(t *AddProcessTask) error {
    24  	start := time.Now()
    25  	ci, ok := s.containers[t.ID]
    26  	if !ok {
    27  		return ErrContainerNotFound
    28  	}
    29  	process, err := ci.container.Exec(t.PID, *t.ProcessSpec, runtime.NewStdio(t.Stdin, t.Stdout, t.Stderr))
    30  	if err != nil {
    31  		return err
    32  	}
    33  	if err := s.monitorProcess(process); err != nil {
    34  		return err
    35  	}
    36  	ExecProcessTimer.UpdateSince(start)
    37  	t.StartResponse <- StartResponse{}
    38  	s.notifySubscribers(Event{
    39  		Timestamp: time.Now(),
    40  		Type:      StateStartProcess,
    41  		PID:       t.PID,
    42  		ID:        t.ID,
    43  	})
    44  	return nil
    45  }