func ports(c *project.ServiceConfig) (map[dockerclient.Port]struct{}, map[dockerclient.Port][]dockerclient.PortBinding, error) {
ports, binding, err := nat.ParsePortSpecs(c.Ports)
if err != nil {
return nil, nil, err
}
exPorts, _, err := nat.ParsePortSpecs(c.Expose)
if err != nil {
return nil, nil, err
}
for k, v := range exPorts {
ports[k] = v
}
exposedPorts := map[dockerclient.Port]struct{}{}
for k, v := range ports {
exposedPorts[dockerclient.Port(k)] = v
}
portBindings := map[dockerclient.Port][]dockerclient.PortBinding{}
for k, bv := range binding {
dcbs := make([]dockerclient.PortBinding, len(bv))
for k, v := range bv {
dcbs[k] = dockerclient.PortBinding{HostIP: v.HostIP, HostPort: v.HostPort}
}
portBindings[dockerclient.Port(k)] = dcbs
}
return exposedPorts, portBindings, nil
}
// Port returns the host port the specified port is mapped on.
func (c *Container) Port(port string) (string, error) {
info, err := c.findInfo()
if err != nil {
return "", err
}
if bindings, ok := info.NetworkSettings.Ports[dockerclient.Port(port)]; ok {
result := []string{}
for _, binding := range bindings {
result = append(result, binding.HostIP+":"+binding.HostPort)
}
return strings.Join(result, "\n"), nil
}
return "", nil
}