// 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
}