func newContainerProxy(name string, client docker.Docker) (*containerProxy, error) {
container, err := client.FetchContainer(name)
if container == nil || err != nil || !container.State.Running {
return nil, fmt.Errorf("Container %s does not exist or is not running, skipping for now", name)
}
ip := container.NetworkSettings.IpAddress
ports := container.NetworkSettings.Ports
if len(ports) == 0 {
return nil, fmt.Errorf("No ports to proxy for %s", name)
}
var proxies []proxy.Proxy
for key, _ := range ports {
port, proto := utils.SplitPort(key)
p, err := newProxy(proto, ip, port)
if err != nil {
log.Info("Error creating proxy for %s %s:%s - %v", name, ip, port, err)
continue
}
proxies = append(proxies, p)
}
if len(proxies) == 0 {
return nil, fmt.Errorf("Error creating proxies for container %s", name)
}
return &containerProxy{id: container.Id, name: name, s: proxies}, nil
}
func proxyContainer(container *docker.Container, proxyChan chan net.Listener) error {
ip := container.NetworkSettings.IpAddress
ports := container.NetworkSettings.Ports
if len(ports) != 0 {
for key, _ := range ports {
port, proto := utils.SplitPort(key)
local := fmt.Sprintf("%v://0.0.0.0:%v", proto, port)
remote := fmt.Sprintf("%v://%v:%v", proto, ip, port)
out := fmt.Sprintf("Proxying %s:%s/%s", ip, port, proto)
log.Printf(out)
srv, err := gocat.NewProxy(local, remote)
if err != nil {
return err
}
proxyChan <- srv
}
}
close(proxyChan)
return nil
}