func (*defaultPortForwarder) ForwardPorts(req *client.Request, config *client.Config, ports []string, stopChan <-chan struct{}) error {
fw, err := portforward.New(req, config, ports, stopChan)
if err != nil {
return err
}
return fw.ForwardPorts()
}
// StartForwardingToPod starts forwarding requests to the given pod on the given target port
// If no localPort has been defined on the tunnel, a random available port will be assigned
// The tunnel is started in the background (using a goroutine), and will need to be stopped with Stop()
// It returns an error if it can't start the tunnel.
func (tunnel *Tunnel) StartForwardingToPod(podName string, namespace string, targetPort int, restClient *kclientapi.RESTClient, clientConfig *kclientapi.Config) error {
req := restClient.Post().
Resource("pods").
Namespace(namespace).
Name(podName).
SubResource("portforward")
if tunnel.LocalPort == 0 {
port, err := getRandomAvailableLocalPort()
if err != nil {
return err
}
tunnel.LocalPort = port
}
port := fmt.Sprintf("%v:%v", tunnel.LocalPort, targetPort)
ports := []string{port}
fw, err := portforward.New(req, clientConfig, ports, tunnel.stopChan)
if err != nil {
return err
}
go func(localPort int) {
err = fw.ForwardPorts()
if err != nil {
fmt.Printf("Failed to forward localPort %v to remotePort %v on pod %s: %v\n", localPort, targetPort, podName, err)
}
}(tunnel.LocalPort)
return nil
}