Golang Client.Destroy方法代碼示例

func CleanupGarden(gardenClient garden.Client) []error {
	containers, err := gardenClient.Containers(nil)
	Expect(err).NotTo(HaveOccurred())

	fmt.Fprintf(ginkgo.GinkgoWriter, "cleaning up %d Garden containers", len(containers))

	// even if containers fail to destroy, stop garden, but still report the
	// errors
	destroyContainerErrors := []error{}
	for _, container := range containers {
		info, _ := container.Info()

		fmt.Fprintf(ginkgo.GinkgoWriter, "cleaning up container %s (%s)", container.Handle(), info.ContainerPath)

	RETRY_LOOP:
		// try to Destroy the container up to 3 times
		for i := 0; i < 3; i++ {
			err := gardenClient.Destroy(container.Handle())
			switch {
			case err == nil:
				// move on if Destroy succeeds
				break RETRY_LOOP
			case strings.Contains(err.Error(), "unknown handle"):
				// move on if container doesn't exist
				break RETRY_LOOP
			case strings.Contains(err.Error(), "container already being destroyed"):
				// move on if container is already being destroyed
				break RETRY_LOOP
			case i == 2:
				// record an error if Destroy failed 3 times
				destroyContainerErrors = append(destroyContainerErrors, err)
			default:
				// try Destroy again otherwise
				time.Sleep(50 * time.Millisecond)
			}
		}
	}

	return destroyContainerErrors
}

func destroyContainers(gardenClient garden.Client, containersFetcher *executorContainers, logger lager.Logger) {
	logger.Info("executor-fetching-containers-to-destroy")
	containers, err := containersFetcher.Containers()
	if err != nil {
		logger.Fatal("executor-failed-to-get-containers", err)
		return
	} else {
		logger.Info("executor-fetched-containers-to-destroy", lager.Data{"num-containers": len(containers)})
	}

	for _, container := range containers {
		logger.Info("executor-destroying-container", lager.Data{"container-handle": container.Handle()})
		err := gardenClient.Destroy(container.Handle())
		if err != nil {
			logger.Fatal("executor-failed-to-destroy-container", err, lager.Data{
				"handle": container.Handle(),
			})
		} else {
			logger.Info("executor-destroyed-stray-container", lager.Data{
				"handle": container.Handle(),
			})
		}
	}
}

func cleanupContainers(client garden.Client) {
	containers, err := client.Containers(nil)
	if err != nil {
		panic(err)
	}

	for _, container := range containers {
		err = client.Destroy(container.Handle())
		if err != nil {
			panic(err)
		}
	}

	listContainers(client)
}

			BeforeEach(func() {
				serverBackend.CreateReturns(nil, errors.New("oh no!"))
			})

			It("returns an error", func() {
				_, err := apiClient.Create(garden.ContainerSpec{
					Handle: "some-handle",
				})
				Ω(err).Should(HaveOccurred())
			})
		})
	})

	Context("and the client sends a destroy request", func() {
		It("destroys the container", func() {
			err := apiClient.Destroy("some-handle")
			Ω(err).ShouldNot(HaveOccurred())

			Ω(serverBackend.DestroyArgsForCall(0)).Should(Equal("some-handle"))
		})

		Context("concurrent with other destroy requests", func() {
			var destroying chan struct{}

			BeforeEach(func() {
				destroying = make(chan struct{})

				serverBackend.DestroyStub = func(string) error {
					close(destroying)
					time.Sleep(time.Second)
					return nil