Golang runtime.Create函數代碼示例

func startEchoServerContainer(t *testing.T, proto string) (*Runtime, *Container, string) {
	var (
		err       error
		container *Container
		strPort   string
		runtime   = mkRuntime(t)
		port      = 5554
	)

	for {
		port += 1
		strPort = strconv.Itoa(port)
		var cmd string
		if proto == "tcp" {
			cmd = "socat TCP-LISTEN:" + strPort + ",reuseaddr,fork EXEC:/bin/cat"
		} else if proto == "udp" {
			cmd = "socat UDP-RECVFROM:" + strPort + ",fork EXEC:/bin/cat"
		} else {
			t.Fatal(fmt.Errorf("Unknown protocol %v", proto))
		}
		t.Log("Trying port", strPort)
		container, err = runtime.Create(&Config{
			Image:     GetTestImage(runtime).ID,
			Cmd:       []string{"sh", "-c", cmd},
			PortSpecs: []string{fmt.Sprintf("%s/%s", strPort, proto)},
		})
		if container != nil {
			break
		}
		if err != nil {
			nuke(runtime)
			t.Fatal(err)
		}
		t.Logf("Port %v already in use", strPort)
	}

	if err := container.Start(&HostConfig{}); err != nil {
		nuke(runtime)
		t.Fatal(err)
	}

	setTimeout(t, "Waiting for the container to be started timed out", 2*time.Second, func() {
		for !container.State.Running {
			time.Sleep(10 * time.Millisecond)
		}
	})

	// Even if the state is running, lets give some time to lxc to spawn the process
	container.WaitTimeout(500 * time.Millisecond)

	strPort = container.NetworkSettings.PortMapping[strings.Title(proto)][strPort]
	return runtime, container, strPort
}

func TestDestroy(t *testing.T) {
	runtime := mkRuntime(t)
	defer nuke(runtime)

	container, _, err := runtime.Create(&Config{
		Image: GetTestImage(runtime).ID,
		Cmd:   []string{"ls", "-al"},
	}, "")
	if err != nil {
		t.Fatal(err)
	}
	// Destroy
	if err := runtime.Destroy(container); err != nil {
		t.Error(err)
	}

	// Make sure runtime.Exists() behaves correctly
	if runtime.Exists("test_destroy") {
		t.Errorf("Exists() returned true")
	}

	// Make sure runtime.List() doesn't list the destroyed container
	if len(runtime.List()) != 0 {
		t.Errorf("Expected 0 container, %v found", len(runtime.List()))
	}

	// Make sure runtime.Get() refuses to return the unexisting container
	if runtime.Get(container.ID) != nil {
		t.Errorf("Unable to get newly created container")
	}

	// Make sure the container root directory does not exist anymore
	_, err = os.Stat(container.root)
	if err == nil || !os.IsNotExist(err) {
		t.Errorf("Container root directory still exists after destroy")
	}

	// Test double destroy
	if err := runtime.Destroy(container); err == nil {
		// It should have failed
		t.Errorf("Double destroy did not fail")
	}
}

func TestDestroyWithInitLayer(t *testing.T) {
	runtime := mkRuntime(t)
	defer nuke(runtime)

	container, _, err := runtime.Create(&docker.Config{
		Image: GetTestImage(runtime).ID,
		Cmd:   []string{"ls", "-al"},
	}, "")

	if err != nil {
		t.Fatal(err)
	}
	// Destroy
	if err := runtime.Destroy(container); err != nil {
		t.Fatal(err)
	}

	// Make sure runtime.Exists() behaves correctly
	if runtime.Exists("test_destroy") {
		t.Fatalf("Exists() returned true")
	}

	// Make sure runtime.List() doesn't list the destroyed container
	if len(runtime.List()) != 0 {
		t.Fatalf("Expected 0 container, %v found", len(runtime.List()))
	}

	driver := runtime.Graph().Driver()

	// Make sure that the container does not exist in the driver
	if _, err := driver.Get(container.ID); err == nil {
		t.Fatal("Conttainer should not exist in the driver")
	}

	// Make sure that the init layer is removed from the driver
	if _, err := driver.Get(fmt.Sprintf("%s-init", container.ID)); err == nil {
		t.Fatal("Container's init layer should not exist in the driver")
	}
}

func TestRuntimeCreate(t *testing.T) {
	runtime := mkRuntime(t)
	defer nuke(runtime)

	// Make sure we start we 0 containers
	if len(runtime.List()) != 0 {
		t.Errorf("Expected 0 containers, %v found", len(runtime.List()))
	}

	container, _, err := runtime.Create(&docker.Config{
		Image: GetTestImage(runtime).ID,
		Cmd:   []string{"ls", "-al"},
	},
		"",
	)
	if err != nil {
		t.Fatal(err)
	}

	defer func() {
		if err := runtime.Destroy(container); err != nil {
			t.Error(err)
		}
	}()

	// Make sure we can find the newly created container with List()
	if len(runtime.List()) != 1 {
		t.Errorf("Expected 1 container, %v found", len(runtime.List()))
	}

	// Make sure the container List() returns is the right one
	if runtime.List()[0].ID != container.ID {
		t.Errorf("Unexpected container %v returned by List", runtime.List()[0])
	}

	// Make sure we can get the container with Get()
	if runtime.Get(container.ID) == nil {
		t.Errorf("Unable to get newly created container")
	}

	// Make sure it is the right container
	if runtime.Get(container.ID) != container {
		t.Errorf("Get() returned the wrong container")
	}

	// Make sure Exists returns it as existing
	if !runtime.Exists(container.ID) {
		t.Errorf("Exists() returned false for a newly created container")
	}

	// Test that conflict error displays correct details
	testContainer, _, _ := runtime.Create(
		&docker.Config{
			Image: GetTestImage(runtime).ID,
			Cmd:   []string{"ls", "-al"},
		},
		"conflictname",
	)
	if _, _, err := runtime.Create(&docker.Config{Image: GetTestImage(runtime).ID, Cmd: []string{"ls", "-al"}}, testContainer.Name); err == nil || !strings.Contains(err.Error(), utils.TruncateID(testContainer.ID)) {
		t.Fatalf("Name conflict error doesn't include the correct short id. Message was: %s", err.Error())
	}

	// Make sure create with bad parameters returns an error
	if _, _, err = runtime.Create(&docker.Config{Image: GetTestImage(runtime).ID}, ""); err == nil {
		t.Fatal("Builder.Create should throw an error when Cmd is missing")
	}

	if _, _, err := runtime.Create(
		&docker.Config{
			Image: GetTestImage(runtime).ID,
			Cmd:   []string{},
		},
		"",
	); err == nil {
		t.Fatal("Builder.Create should throw an error when Cmd is empty")
	}

	config := &docker.Config{
		Image:     GetTestImage(runtime).ID,
		Cmd:       []string{"/bin/ls"},
		PortSpecs: []string{"80"},
	}
	container, _, err = runtime.Create(config, "")

	_, err = runtime.Commit(container, "testrepo", "testtag", "", "", config)
	if err != nil {
		t.Error(err)
	}

	// test expose 80:8000
	container, warnings, err := runtime.Create(&docker.Config{
		Image:     GetTestImage(runtime).ID,
		Cmd:       []string{"ls", "-al"},
		PortSpecs: []string{"80:8000"},
	},
		"",
	)
	if err != nil {
		t.Fatal(err)
	}
//.........這裏部分代碼省略.........

func startEchoServerContainer(t *testing.T, proto string) (*Runtime, *Container, string) {
	var (
		err       error
		container *Container
		strPort   string
		runtime   = mkRuntime(t)
		port      = 5554
		p         Port
	)

	for {
		port += 1
		strPort = strconv.Itoa(port)
		var cmd string
		if proto == "tcp" {
			cmd = "socat TCP-LISTEN:" + strPort + ",reuseaddr,fork EXEC:/bin/cat"
		} else if proto == "udp" {
			cmd = "socat UDP-RECVFROM:" + strPort + ",fork EXEC:/bin/cat"
		} else {
			t.Fatal(fmt.Errorf("Unknown protocol %v", proto))
		}
		ep := make(map[Port]struct{}, 1)
		p = Port(fmt.Sprintf("%s/%s", strPort, proto))
		ep[p] = struct{}{}

		container, _, err = runtime.Create(&Config{
			Image:        GetTestImage(runtime).ID,
			Cmd:          []string{"sh", "-c", cmd},
			PortSpecs:    []string{fmt.Sprintf("%s/%s", strPort, proto)},
			ExposedPorts: ep,
		}, "")
		if err != nil {
			nuke(runtime)
			t.Fatal(err)
		}

		if container != nil {
			break
		}
		t.Logf("Port %v already in use, trying another one", strPort)
	}

	container.hostConfig = &HostConfig{
		PortBindings: make(map[Port][]PortBinding),
	}
	container.hostConfig.PortBindings[p] = []PortBinding{
		{},
	}
	if err := container.Start(); err != nil {
		nuke(runtime)
		t.Fatal(err)
	}

	setTimeout(t, "Waiting for the container to be started timed out", 2*time.Second, func() {
		for !container.State.Running {
			time.Sleep(10 * time.Millisecond)
		}
	})

	// Even if the state is running, lets give some time to lxc to spawn the process
	container.WaitTimeout(500 * time.Millisecond)

	strPort = container.NetworkSettings.Ports[p][0].HostPort
	return runtime, container, strPort
}

func TestRuntimeCreate(t *testing.T) {
	runtime := mkRuntime(t)
	defer nuke(runtime)

	// Make sure we start we 0 containers
	if len(runtime.List()) != 0 {
		t.Errorf("Expected 0 containers, %v found", len(runtime.List()))
	}

	container, err := runtime.Create(&Config{
		Image: GetTestImage(runtime).ID,
		Cmd:   []string{"ls", "-al"},
	},
	)
	if err != nil {
		t.Fatal(err)
	}

	defer func() {
		if err := runtime.Destroy(container); err != nil {
			t.Error(err)
		}
	}()

	// Make sure we can find the newly created container with List()
	if len(runtime.List()) != 1 {
		t.Errorf("Expected 1 container, %v found", len(runtime.List()))
	}

	// Make sure the container List() returns is the right one
	if runtime.List()[0].ID != container.ID {
		t.Errorf("Unexpected container %v returned by List", runtime.List()[0])
	}

	// Make sure we can get the container with Get()
	if runtime.Get(container.ID) == nil {
		t.Errorf("Unable to get newly created container")
	}

	// Make sure it is the right container
	if runtime.Get(container.ID) != container {
		t.Errorf("Get() returned the wrong container")
	}

	// Make sure Exists returns it as existing
	if !runtime.Exists(container.ID) {
		t.Errorf("Exists() returned false for a newly created container")
	}

	// Make sure crete with bad parameters returns an error
	_, err = runtime.Create(
		&Config{
			Image: GetTestImage(runtime).ID,
		},
	)
	if err == nil {
		t.Fatal("Builder.Create should throw an error when Cmd is missing")
	}

	_, err = runtime.Create(
		&Config{
			Image: GetTestImage(runtime).ID,
			Cmd:   []string{},
		},
	)
	if err == nil {
		t.Fatal("Builder.Create should throw an error when Cmd is empty")
	}
}