Golang Pod.IsAfterRun方法代码示例

func appState(app *App, pod *pkgPod.Pod) error {
	app.State = AppStateUnknown

	defer func() {
		if pod.IsAfterRun() {
			// If the pod is hard killed, set the app to 'exited' state.
			// Other than this case, status file is guaranteed to be written.
			if app.State != AppStateExited {
				app.State = AppStateExited
				t, err := pod.GCMarkedTime()
				if err != nil {
					fmt.Fprintf(os.Stderr, "Cannot get GC marked time: %v", err)
				}
				if !t.IsZero() {
					finishedAt := t.UnixNano()
					app.FinishedAt = &finishedAt
				}
			}
		}
	}()

	// Check if the app is created.
	fi, err := os.Stat(common.AppCreatedPath(pod.Path(), app.Name))
	if err != nil {
		if !os.IsNotExist(err) {
			return fmt.Errorf("cannot stat app creation file: %v", err)
		}
		return nil
	}

	app.State = AppStateCreated
	createdAt := fi.ModTime().UnixNano()
	app.CreatedAt = &createdAt

	// Check if the app is started.
	fi, err = os.Stat(common.AppStartedPath(pod.Path(), app.Name))
	if err != nil {
		if !os.IsNotExist(err) {
			return fmt.Errorf("cannot stat app started file: %v", err)
		}
		return nil
	}

	app.State = AppStateRunning
	startedAt := fi.ModTime().UnixNano()
	app.StartedAt = &startedAt

	// Check if the app is exited.
	appStatusFile := common.AppStatusPath(pod.Path(), app.Name)
	fi, err = os.Stat(appStatusFile)
	if err != nil {
		if !os.IsNotExist(err) {
			return fmt.Errorf("cannot stat app exited file: %v", err)
		}
		return nil
	}

	app.State = AppStateExited
	finishedAt := fi.ModTime().UnixNano()
	app.FinishedAt = &finishedAt

	// Read exit code.
	exitCode, err := readExitCode(appStatusFile)
	if err != nil {
		return err
	}
	app.ExitCode = &exitCode

	return nil
}

// fillPodDetails fills the v1pod's dynamic info in place, e.g. the pod's state,
// the pod's network info, the apps' state, etc. Such information can change
// during the lifecycle of the pod, so we need to read it in every request.
func fillPodDetails(store *imagestore.Store, p *pkgPod.Pod, v1pod *v1alpha.Pod) {
	v1pod.Pid = -1

	switch p.State() {
	case pkgPod.Embryo:
		v1pod.State = v1alpha.PodState_POD_STATE_EMBRYO
		// When a pod is in embryo state, there is not much
		// information to return.
		return
	case pkgPod.Preparing:
		v1pod.State = v1alpha.PodState_POD_STATE_PREPARING
	case pkgPod.AbortedPrepare:
		v1pod.State = v1alpha.PodState_POD_STATE_ABORTED_PREPARE
	case pkgPod.Prepared:
		v1pod.State = v1alpha.PodState_POD_STATE_PREPARED
	case pkgPod.Running:
		v1pod.State = v1alpha.PodState_POD_STATE_RUNNING
		v1pod.Networks = getNetworks(p)
	case pkgPod.Deleting:
		v1pod.State = v1alpha.PodState_POD_STATE_DELETING
	case pkgPod.Exited:
		v1pod.State = v1alpha.PodState_POD_STATE_EXITED
	case pkgPod.Garbage, pkgPod.ExitedGarbage:
		v1pod.State = v1alpha.PodState_POD_STATE_GARBAGE
	default:
		v1pod.State = v1alpha.PodState_POD_STATE_UNDEFINED
		return
	}

	createdAt, err := p.CreationTime()
	if err != nil {
		stderr.PrintE(fmt.Sprintf("failed to get the creation time for pod %q", p.UUID), err)
	} else if !createdAt.IsZero() {
		v1pod.CreatedAt = createdAt.UnixNano()
	}

	startedAt, err := p.StartTime()
	if err != nil {
		stderr.PrintE(fmt.Sprintf("failed to get the start time for pod %q", p.UUID), err)
	} else if !startedAt.IsZero() {
		v1pod.StartedAt = startedAt.UnixNano()

	}

	gcMarkedAt, err := p.GCMarkedTime()
	if err != nil {
		stderr.PrintE(fmt.Sprintf("failed to get the gc marked time for pod %q", p.UUID), err)
	} else if !gcMarkedAt.IsZero() {
		v1pod.GcMarkedAt = gcMarkedAt.UnixNano()
	}

	pid, err := p.Pid()
	if err != nil {
		stderr.PrintE(fmt.Sprintf("failed to get the PID for pod %q", p.UUID), err)
	} else {
		v1pod.Pid = int32(pid)
	}

	if v1pod.State == v1alpha.PodState_POD_STATE_RUNNING {
		pid, err := p.ContainerPid1()
		if err != nil {
			stderr.PrintE(fmt.Sprintf("failed to get the container PID1 for pod %q", p.UUID), err)
		} else {
			cgroup, err := getPodCgroup(p, pid)
			if err != nil {
				stderr.PrintE(fmt.Sprintf("failed to get the cgroup path for pod %q", p.UUID), err)
			} else {
				v1pod.Cgroup = cgroup
			}
		}
	}

	for _, app := range v1pod.Apps {
		readStatus := false

		if p.State() == pkgPod.Running {
			readStatus = true
			app.State = v1alpha.AppState_APP_STATE_RUNNING
		} else if p.IsAfterRun() {
			readStatus = true
			app.State = v1alpha.AppState_APP_STATE_EXITED
		} else {
			app.State = v1alpha.AppState_APP_STATE_UNDEFINED
		}

		if readStatus {
			exitCode, err := p.AppExitCode(app.Name)
			if err != nil {
				stderr.PrintE(fmt.Sprintf("failed to read status for app %q", app.Name), err)
			}
			app.ExitCode = int32(exitCode)
		}
	}
}