Example #1
0
func (e *cmdExtractor) Extract(ctx context.Context, img image.Image, _ io.Writer) ([]byte, error) {
	i, err := e.client.InspectImage(img.String())
	if err != nil {
		return nil, err
	}

	return procfile.Marshal(procfile.ExtendedProcfile{
		"web": procfile.Process{
			Command: i.Config.Cmd,
		},
	})
}
Example #2
0
// Returns a function that can be used as a Procfile extract for Empire. It
// writes a fake Docker pull to w, and extracts the given Procfile in yaml
// format.
func ExtractProcfile(pf procfile.Procfile) empire.ProcfileExtractor {
	if pf == nil {
		pf = defaultProcfile
	}

	return empire.ProcfileExtractorFunc(func(ctx context.Context, img image.Image, w io.Writer) ([]byte, error) {
		p, err := procfile.Marshal(pf)
		if err != nil {
			return nil, err
		}

		return p, dockerutil.FakePull(img, w)
	})
}
Example #3
0
				for name, command := range m {
					p[name] = procfile.Process{
						Command: command,
					}
				}
				slugs[id] = p
			}

			if err := rows.Err(); err != nil {
				return err
			}

			rows.Close()

			for id, p := range slugs {
				raw, err := procfile.Marshal(p)
				if err != nil {
					return err
				}

				_, err = tx.Exec(`UPDATE slugs SET procfile = $1 WHERE id = $2`, raw, id)
				if err != nil {
					return err
				}
			}

			_, err = tx.Exec(`ALTER TABLE slugs DROP COLUMN process_types`)
			if err != nil {
				return err
			}
Example #4
0
func TestEmpire_Deploy_Concurrent(t *testing.T) {
	e := empiretest.NewEmpire(t)
	s := new(mockScheduler)
	e.Scheduler = scheduler.NewFakeScheduler()
	e.ProcfileExtractor = empiretest.ExtractProcfile(procfile.ExtendedProcfile{
		"web": procfile.Process{
			Command: []string{"./bin/web"},
		},
	})

	user := &empire.User{Name: "ejholmes"}

	// Create the first release for this app.
	r, err := e.Deploy(context.Background(), empire.DeployOpts{
		User:   user,
		Output: empire.NewDeploymentStream(ioutil.Discard),
		Image:  image.Image{Repository: "remind101/acme-inc"},
	})
	assert.NoError(t, err)
	assert.Equal(t, 1, r.Version)

	// We'll use the procfile extractor to synchronize two concurrent
	// deployments.
	v2Started, v3Started := make(chan struct{}), make(chan struct{})
	e.ProcfileExtractor = empire.ProcfileExtractorFunc(func(ctx context.Context, img image.Image, w io.Writer) ([]byte, error) {
		switch img.Tag {
		case "v2":
			close(v2Started)
			<-v3Started
		case "v3":
			close(v3Started)
		}
		return procfile.Marshal(procfile.ExtendedProcfile{
			"web": procfile.Process{
				Command: []string{"./bin/web"},
			},
		})
	})

	v2Done := make(chan struct{})
	go func() {
		r, err := e.Deploy(context.Background(), empire.DeployOpts{
			User:   user,
			Output: empire.NewDeploymentStream(ioutil.Discard),
			Image:  image.Image{Repository: "remind101/acme-inc", Tag: "v2"},
		})
		assert.NoError(t, err)
		assert.Equal(t, 2, r.Version)
		close(v2Done)
	}()

	<-v2Started

	r, err = e.Deploy(context.Background(), empire.DeployOpts{
		User:   user,
		Output: empire.NewDeploymentStream(ioutil.Discard),
		Image:  image.Image{Repository: "remind101/acme-inc", Tag: "v3"},
	})
	assert.NoError(t, err)
	assert.Equal(t, 3, r.Version)

	<-v2Done

	s.AssertExpectations(t)
}