Golang Env.GetInt方法代碼示例

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 {
		bindings = container.hostConfig.PortBindings
	}

	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 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
}

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

	containerID := createTestContainer(eng,
		&docker.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)
		}
		if err := docker.ServeRequest(srv, docker.APIVERSION, r, req); err != nil {
			t.Fatal(err)
		}
		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")
	}
}

//.........這裏部分代碼省略.........
			job := eng.Job("allocate_interface", container.ID)
			if currentIP != "" {
				job.Setenv("RequestIP", currentIP)
			}

			env, err = job.Stdout.AddEnv()
			if err != nil {
				return err
			}

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

	if container.Config.PortSpecs != nil {
		utils.Debugf("Migrating port mappings for container: %s", strings.Join(container.Config.PortSpecs, ", "))
		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.State.IsGhost() {
		if container.Config.ExposedPorts != nil {
			portSpecs = container.Config.ExposedPorts
		}
		if container.hostConfig.PortBindings != nil {
			bindings = container.hostConfig.PortBindings
		}
	} else {
		if container.NetworkSettings.Ports != nil {
			for port, binding := range container.NetworkSettings.Ports {
				portSpecs[port] = struct{}{}
				bindings[port] = binding
			}
		}
	}

	container.NetworkSettings.PortMapping = nil

	for port := range portSpecs {
		binding := bindings[port]
		if container.hostConfig.PublishAllPorts && len(binding) == 0 {
			binding = append(binding, nat.PortBinding{})
		}

		for i := 0; i < len(binding); i++ {
			b := binding[i]

			portJob := eng.Job("allocate_port", container.ID)
			portJob.Setenv("HostIP", b.HostIp)
			portJob.Setenv("HostPort", b.HostPort)
			portJob.Setenv("Proto", port.Proto())
			portJob.Setenv("ContainerPort", port.Port())

			portEnv, err := portJob.Stdout.AddEnv()
			if err != nil {
				return err
			}
			if err := portJob.Run(); err != nil {
				eng.Job("release_interface", container.ID).Run()
				return err
			}
			b.HostIp = portEnv.Get("HostIP")
			b.HostPort = portEnv.Get("HostPort")

			binding[i] = b
		}
		bindings[port] = binding
	}
	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
}