Example #1
0
func initializeRouter() error {
	if err := systemd.InitializeSystemdFile(systemd.UnitType, hostServiceName, rjobs.UnitRouterTemplate, nil, false); err != nil {
		return err
	}
	systemd.IsUnitProperty(systemd.Connection(), hostServiceName+".service", func(p map[string]interface{}) bool {
		switch p["ActiveState"] {
		case "active":
			break
		case "activating":
			log.Printf("The Router host service '" + hostServiceName + "' is starting - routing tasks will not be available until it completes")
		default:
			log.Printf("The Router host service '" + hostServiceName + "' is not started - router operations will not be available")
		}
		return true
	})
	return nil
}
Example #2
0
func (j *buildImage) Execute(resp jobs.Response) {
	w := resp.SuccessWithWrite(jobs.ResponseAccepted, true, false)

	fmt.Fprintf(w, "Processing build-image request:\n")
	// TODO: download source, add bind-mount

	unitName := containers.JobIdentifier(j.Name).UnitNameForBuild()
	unitDescription := fmt.Sprintf("Builder for %s", j.Tag)

	stdout, err := systemd.ProcessLogsForUnit(unitName)
	if err != nil {
		stdout = utils.EmptyReader
		log.Printf("job_build_image: Unable to fetch build logs: %s, %+v", err.Error(), err)
	}
	defer stdout.Close()

	conn, errc := systemd.NewConnection()
	if errc != nil {
		log.Print("job_build_image:", errc)
		fmt.Fprintf(w, "Unable to watch start status", errc)
		return
	}

	slice := DefaultSlice
	systemd.IsUnitProperty(conn, j.BaseImage+".service", func(properties map[string]interface{}) bool {
		value, ok := properties["Slice"]
		if ok {
			slice = value.(string)
		}
		return ok
	})

	if err := conn.Subscribe(); err != nil {
		log.Print("job_build_image:", err)
		fmt.Fprintf(w, "Unable to watch start status", errc)
		return
	}
	defer conn.Unsubscribe()

	// make subscription global for efficiency
	var (
		changes <-chan map[string]*dbus.UnitStatus
		errch   <-chan error
	)
	if resp.StreamResult() {
		changes, errch = conn.SubscribeUnitsCustom(1*time.Second, 2,
			func(s1 *dbus.UnitStatus, s2 *dbus.UnitStatus) bool {
				return true
			},
			func(unit string) bool {
				return unit != unitName
			})
	}

	fmt.Fprintf(w, "Running sti build unit: %s\n", unitName)
	log.Printf("build_image: Running build %s", unitName)

	var startCmd []string

	if _, err := os.Stat(gearBinaryPath); err != nil {
		log.Println("gear executable is not installed on system; using sti builder image")
		startCmd = []string{
			"/usr/bin/docker", "run",
			"-rm",
			"-v", "/run/docker.sock:/run/docker.sock",
			"-t", builderImage,
			"sti", "build", j.Source, j.BaseImage, j.Tag,
			"-U", "unix:///run/docker.sock",
		}
	} else {
		startCmd = []string{
			gearBinaryPath, "build", j.Source, j.BaseImage, j.Tag,
		}
	}

	if j.RuntimeImage != "" {
		startCmd = append(startCmd, "--runtime-image")
		startCmd = append(startCmd, j.RuntimeImage)
	}

	if j.Clean {
		startCmd = append(startCmd, "--clean")
	}

	if j.Verbose {
		startCmd = append(startCmd, "--debug")
	}

	if j.CallbackUrl != "" {
		startCmd = append(startCmd, "--callbackUrl="+j.CallbackUrl)
	}

	log.Printf("build_image: Will execute %v", startCmd)
	status, err := systemd.Connection().StartTransientUnit(
		unitName,
		"fail",
		dbus.PropExecStart(startCmd, true),
		dbus.PropDescription(unitDescription),
		dbus.PropRemainAfterExit(true),
		dbus.PropSlice(slice),
	)

	if err != nil {
		errType := reflect.TypeOf(err)
		fmt.Fprintf(w, "Unable to start build container for this image due to (%s): %s\n", errType, err.Error())
		return
	} else if status != "done" {
		fmt.Fprintf(w, "Build did not complete successfully: %s\n", status)
	} else {
		fmt.Fprintf(w, "Sti build is running\n")
	}

	if resp.StreamResult() {
		go io.Copy(w, stdout)
	wait:
		for {
			select {
			case c := <-changes:
				if changed, ok := c[unitName]; ok {
					if changed.SubState != "running" {
						fmt.Fprintf(w, "Build completed\n")
						break wait
					}
				}
			case err := <-errch:
				fmt.Fprintf(w, "Error %+v\n", err)
			case <-time.After(25 * time.Second):
				log.Print("job_build_image:", "timeout")
				break wait
			}
		}
	}
}