Golang Env.GetInt方法代码示例

func TestPostContainersWait(t *testing.T) {
	eng := NewTestEngine(t)
	defer mkDaemonFromEngine(eng, t).Nuke()

	containerID := createTestContainer(eng,
		&runconfig.Config{
			Image:     unitTestImageID,
			Cmd:       []string{"/bin/sleep", "1"},
			OpenStdin: true,
		},
		t,
	)
	startContainer(eng, containerID, t)

	setTimeout(t, "Wait timed out", 3*time.Second, func() {
		r := httptest.NewRecorder()
		req, err := http.NewRequest("POST", "/containers/"+containerID+"/wait", bytes.NewReader([]byte{}))
		if err != nil {
			t.Fatal(err)
		}
		server.ServeRequest(eng, api.APIVERSION, r, req)
		assertHttpNotError(r, t)
		var apiWait engine.Env
		if err := apiWait.Decode(r.Body); err != nil {
			t.Fatal(err)
		}
		if apiWait.GetInt("StatusCode") != 0 {
			t.Fatalf("Non zero exit code for sleep: %d\n", apiWait.GetInt("StatusCode"))
		}
	})

	if containerRunning(eng, containerID, t) {
		t.Fatalf("The container should be stopped after wait")
	}
}

func waitForExit(cli *DockerCli, containerId string) (int, error) {
	stream, _, err := cli.call("POST", "/containers/"+containerId+"/wait", nil, false)
	if err != nil {
		return -1, err
	}

	var out engine.Env
	if err := out.Decode(stream); err != nil {
		return -1, err
	}
	return out.GetInt("StatusCode"), nil
}

// getExecExitCode perform an inspect on the exec command. It returns
// the running state and the exit code.
func getExecExitCode(cli *DockerCli, execId string) (bool, int, error) {
	stream, _, err := cli.call("GET", "/exec/"+execId+"/json", nil, false)
	if err != nil {
		// If we can't connect, then the daemon probably died.
		if err != ErrConnectionRefused {
			return false, -1, err
		}
		return false, -1, nil
	}

	var result engine.Env
	if err := result.Decode(stream); err != nil {
		return false, -1, err
	}

	return result.GetBool("Running"), result.GetInt("ExitCode"), nil
}

func (container *Container) allocateNetwork() error {
	mode := container.hostConfig.NetworkMode
	if container.Config.NetworkDisabled || mode.IsContainer() || mode.IsHost() {
		return nil
	}

	var (
		env *engine.Env
		err error
		eng = container.daemon.eng
	)

	job := eng.Job("allocate_interface", container.ID)
	if env, err = job.Stdout.AddEnv(); err != nil {
		return err
	}
	if err := job.Run(); err != nil {
		return err
	}

	if container.Config.PortSpecs != nil {
		if err := migratePortMappings(container.Config, container.hostConfig); err != nil {
			return err
		}
		container.Config.PortSpecs = nil
		if err := container.WriteHostConfig(); err != nil {
			return err
		}
	}

	var (
		portSpecs = make(nat.PortSet)
		bindings  = make(nat.PortMap)
	)

	if container.Config.ExposedPorts != nil {
		portSpecs = container.Config.ExposedPorts
	}

	if container.hostConfig.PortBindings != nil {
		for p, b := range container.hostConfig.PortBindings {
			bindings[p] = []nat.PortBinding{}
			for _, bb := range b {
				bindings[p] = append(bindings[p], nat.PortBinding{
					HostIp:   bb.HostIp,
					HostPort: bb.HostPort,
				})
			}
		}
	}

	container.NetworkSettings.PortMapping = nil

	for port := range portSpecs {
		if err := container.allocatePort(eng, port, bindings); err != nil {
			return err
		}
	}
	container.WriteHostConfig()

	container.NetworkSettings.Ports = bindings
	container.NetworkSettings.Bridge = env.Get("Bridge")
	container.NetworkSettings.IPAddress = env.Get("IP")
	container.NetworkSettings.IPPrefixLen = env.GetInt("IPPrefixLen")
	container.NetworkSettings.Gateway = env.Get("Gateway")

	return nil
}

func (container *Container) AllocateNetwork() error {
	mode := container.hostConfig.NetworkMode
	if container.Config.NetworkDisabled || !mode.IsPrivate() {
		return nil
	}

	var (
		env *engine.Env
		err error
		eng = container.daemon.eng
	)

	job := eng.Job("allocate_interface", container.ID)
	job.Setenv("RequestedMac", container.Config.MacAddress)
	if env, err = job.Stdout.AddEnv(); err != nil {
		return err
	}
	if err = job.Run(); err != nil {
		return err
	}

	// Error handling: At this point, the interface is allocated so we have to
	// make sure that it is always released in case of error, otherwise we
	// might leak resources.

	if container.Config.PortSpecs != nil {
		if err = migratePortMappings(container.Config, container.hostConfig); err != nil {
			eng.Job("release_interface", container.ID).Run()
			return err
		}
		container.Config.PortSpecs = nil
		if err = container.WriteHostConfig(); err != nil {
			eng.Job("release_interface", container.ID).Run()
			return err
		}
	}

	var (
		portSpecs = make(nat.PortSet)
		bindings  = make(nat.PortMap)
	)

	if container.Config.ExposedPorts != nil {
		portSpecs = container.Config.ExposedPorts
	}

	if container.hostConfig.PortBindings != nil {
		for p, b := range container.hostConfig.PortBindings {
			bindings[p] = []nat.PortBinding{}
			for _, bb := range b {
				bindings[p] = append(bindings[p], nat.PortBinding{
					HostIp:   bb.HostIp,
					HostPort: bb.HostPort,
				})
			}
		}
	}

	container.NetworkSettings.PortMapping = nil

	for port := range portSpecs {
		if err = container.allocatePort(eng, port, bindings); err != nil {
			eng.Job("release_interface", container.ID).Run()
			return err
		}
	}
	container.WriteHostConfig()

	container.NetworkSettings.Ports = bindings
	container.NetworkSettings.Bridge = env.Get("Bridge")
	container.NetworkSettings.IPAddress = env.Get("IP")
	container.NetworkSettings.IPPrefixLen = env.GetInt("IPPrefixLen")
	container.NetworkSettings.MacAddress = env.Get("MacAddress")
	container.NetworkSettings.Gateway = env.Get("Gateway")
	container.NetworkSettings.LinkLocalIPv6Address = env.Get("LinkLocalIPv6")
	container.NetworkSettings.LinkLocalIPv6PrefixLen = 64
	container.NetworkSettings.GlobalIPv6Address = env.Get("GlobalIPv6")
	container.NetworkSettings.GlobalIPv6PrefixLen = env.GetInt("GlobalIPv6PrefixLen")
	container.NetworkSettings.IPv6Gateway = env.Get("IPv6Gateway")

	return nil
}