Golang ConnectionInfoGetter.GetConnectionInfo方法代码示例

// ResourceLocation returns an URL and transport which one can use to send traffic for the specified node.
func ResourceLocation(getter ResourceGetter, connection client.ConnectionInfoGetter, ctx api.Context, id string) (*url.URL, http.RoundTripper, error) {
	name, portReq, valid := util.SplitPort(id)
	if !valid {
		return nil, nil, errors.NewBadRequest(fmt.Sprintf("invalid node request %q", id))
	}

	nodeObj, err := getter.Get(ctx, name)
	if err != nil {
		return nil, nil, err
	}
	node := nodeObj.(*api.Node)
	hostIP, err := nodeutil.GetNodeHostIP(node)
	if err != nil {
		return nil, nil, err
	}
	host := hostIP.String()

	if portReq == "" || strconv.Itoa(ports.KubeletPort) == portReq {
		scheme, port, transport, err := connection.GetConnectionInfo(host)
		if err != nil {
			return nil, nil, err
		}
		return &url.URL{
				Scheme: scheme,
				Host: net.JoinHostPort(
					host,
					strconv.FormatUint(uint64(port), 10),
				),
			},
			transport,
			nil
	}
	return &url.URL{Host: net.JoinHostPort(host, portReq)}, nil, nil
}

func streamLocation(getter ResourceGetter, connInfo client.ConnectionInfoGetter, ctx api.Context, name string, opts runtime.Object, container, path string) (*url.URL, http.RoundTripper, error) {
	pod, err := getPod(getter, ctx, name)
	if err != nil {
		return nil, nil, err
	}

	// Try to figure out a container
	if container == "" {
		if len(pod.Spec.Containers) == 1 {
			container = pod.Spec.Containers[0].Name
		} else {
			return nil, nil, errors.NewBadRequest(fmt.Sprintf("a container name must be specified for pod %s", name))
		}
	}
	nodeHost := pod.Spec.NodeName
	if len(nodeHost) == 0 {
		// If pod has not been assigned a host, return an empty location
		return nil, nil, errors.NewBadRequest(fmt.Sprintf("pod %s does not have a host assigned", name))
	}
	nodeScheme, nodePort, nodeTransport, err := connInfo.GetConnectionInfo(nodeHost)
	if err != nil {
		return nil, nil, err
	}
	params := url.Values{}
	if err := streamParams(params, opts); err != nil {
		return nil, nil, err
	}
	loc := &url.URL{
		Scheme:   nodeScheme,
		Host:     fmt.Sprintf("%s:%d", nodeHost, nodePort),
		Path:     fmt.Sprintf("/%s/%s/%s/%s", path, pod.Namespace, name, container),
		RawQuery: params.Encode(),
	}
	return loc, nodeTransport, nil
}

// ResourceLocation returns a URL to which one can send traffic for the specified node.
func ResourceLocation(getter ResourceGetter, connection client.ConnectionInfoGetter, ctx api.Context, id string) (*url.URL, http.RoundTripper, error) {
	name, portReq, valid := util.SplitPort(id)
	if !valid {
		return nil, nil, errors.NewBadRequest(fmt.Sprintf("invalid node request %q", id))
	}

	nodeObj, err := getter.Get(ctx, name)
	if err != nil {
		return nil, nil, err
	}
	node := nodeObj.(*api.Node)
	host := node.Name // TODO: use node's IP, don't expect the name to resolve.

	if portReq != "" {
		return &url.URL{Host: net.JoinHostPort(host, portReq)}, nil, nil
	}

	scheme, port, transport, err := connection.GetConnectionInfo(host)
	if err != nil {
		return nil, nil, err
	}

	return &url.URL{
			Scheme: scheme,
			Host: net.JoinHostPort(
				host,
				strconv.FormatUint(uint64(port), 10),
			),
		},
		transport,
		nil
}

// ExecLocation returns the exec URL for a pod container. If opts.Container is blank
// and only one container is present in the pod, that container is used.
func ExecLocation(getter ResourceGetter, connInfo client.ConnectionInfoGetter, ctx api.Context, name string, opts *api.PodExecOptions) (*url.URL, http.RoundTripper, error) {

	pod, err := getPod(getter, ctx, name)
	if err != nil {
		return nil, nil, err
	}

	// Try to figure out a container
	container := opts.Container
	if container == "" {
		if len(pod.Spec.Containers) == 1 {
			container = pod.Spec.Containers[0].Name
		} else {
			return nil, nil, errors.NewBadRequest(fmt.Sprintf("a container name must be specified for pod %s", name))
		}
	}
	nodeHost := pod.Spec.NodeName
	if len(nodeHost) == 0 {
		// If pod has not been assigned a host, return an empty location
		return nil, nil, errors.NewBadRequest(fmt.Sprintf("pod %s does not have a host assigned", name))
	}
	nodeScheme, nodePort, nodeTransport, err := connInfo.GetConnectionInfo(nodeHost)
	if err != nil {
		return nil, nil, err
	}
	params := url.Values{}
	if opts.Stdin {
		params.Add(api.ExecStdinParam, "1")
	}
	if opts.Stdout {
		params.Add(api.ExecStdoutParam, "1")
	}
	if opts.Stderr {
		params.Add(api.ExecStderrParam, "1")
	}
	if opts.TTY {
		params.Add(api.ExecTTYParam, "1")
	}
	for _, c := range opts.Command {
		params.Add("command", c)
	}
	loc := &url.URL{
		Scheme:   nodeScheme,
		Host:     fmt.Sprintf("%s:%d", nodeHost, nodePort),
		Path:     fmt.Sprintf("/exec/%s/%s/%s", pod.Namespace, name, container),
		RawQuery: params.Encode(),
	}
	return loc, nodeTransport, nil
}

// LogLocation returns a the log URL for a pod container. If opts.Container is blank
// and only one container is present in the pod, that container is used.
func LogLocation(getter ResourceGetter, connInfo client.ConnectionInfoGetter, ctx api.Context, name string, opts *api.PodLogOptions) (*url.URL, http.RoundTripper, error) {

	pod, err := getPod(getter, ctx, name)
	if err != nil {
		return nil, nil, err
	}

	// Try to figure out a container
	container := opts.Container
	if container == "" {
		if len(pod.Spec.Containers) == 1 {
			container = pod.Spec.Containers[0].Name
		} else {
			return nil, nil, errors.NewBadRequest(fmt.Sprintf("a container name must be specified for pod %s", name))
		}
	}
	nodeHost := pod.Spec.NodeName
	if len(nodeHost) == 0 {
		// If pod has not been assigned a host, return an empty location
		return nil, nil, nil
	}
	nodeScheme, nodePort, nodeTransport, err := connInfo.GetConnectionInfo(nodeHost)
	if err != nil {
		return nil, nil, err
	}
	params := url.Values{}
	if opts.Follow {
		params.Add("follow", "true")
	}
	if opts.Previous {
		params.Add("previous", "true")
	}
	loc := &url.URL{
		Scheme:   nodeScheme,
		Host:     fmt.Sprintf("%s:%d", nodeHost, nodePort),
		Path:     fmt.Sprintf("/containerLogs/%s/%s/%s", pod.Namespace, name, container),
		RawQuery: params.Encode(),
	}
	return loc, nodeTransport, nil
}

// PortForwardLocation returns a the port-forward URL for a pod.
func PortForwardLocation(getter ResourceGetter, connInfo client.ConnectionInfoGetter, ctx api.Context, name string) (*url.URL, http.RoundTripper, error) {
	pod, err := getPod(getter, ctx, name)
	if err != nil {
		return nil, nil, err
	}

	nodeHost := pod.Spec.NodeName
	if len(nodeHost) == 0 {
		// If pod has not been assigned a host, return an empty location
		return nil, nil, errors.NewBadRequest(fmt.Sprintf("pod %s does not have a host assigned", name))
	}
	nodeScheme, nodePort, nodeTransport, err := connInfo.GetConnectionInfo(nodeHost)
	if err != nil {
		return nil, nil, err
	}
	loc := &url.URL{
		Scheme: nodeScheme,
		Host:   fmt.Sprintf("%s:%d", nodeHost, nodePort),
		Path:   fmt.Sprintf("/portForward/%s/%s", pod.Namespace, name),
	}
	return loc, nodeTransport, nil
}