func setupNetworking(args *ContainerInitArgs) error {
// loopback
iface, err := net.InterfaceByName("lo")
if err != nil {
return fmt.Errorf("Unable to set up networking: %v", err)
}
if err := netlink.NetworkLinkUp(iface); err != nil {
return fmt.Errorf("Unable to set up networking: %v", err)
}
if args.ip != "" {
if iface, err = net.InterfaceByName("eth0"); err != nil {
return fmt.Errorf("Unable to set up networking: %v", err)
}
ip, ipNet, err := net.ParseCIDR(args.ip)
if err != nil {
return fmt.Errorf("Unable to set up networking: %v", err)
}
if err := netlink.NetworkLinkAddIp(iface, ip, ipNet); err != nil {
return fmt.Errorf("Unable to set up networking: %v", err)
}
if args.gateway != "" {
if err := netlink.AddDefaultGw(args.gateway, "eth0"); err != nil {
return fmt.Errorf("Unable to set up networking: %v", err)
}
}
if err := netlink.NetworkLinkUp(iface); err != nil {
return fmt.Errorf("Unable to set up networking: %v", err)
}
}
return nil
}
func setupNetworking(c *Config) error {
if c.IP == "" {
return nil
}
// loopback
iface, err := net.InterfaceByName("lo")
if err != nil {
return fmt.Errorf("Unable to set up networking: %v", err)
}
if err := netlink.NetworkLinkUp(iface); err != nil {
return fmt.Errorf("Unable to set up networking: %v", err)
}
if iface, err = net.InterfaceByName("eth0"); err != nil {
return fmt.Errorf("Unable to set up networking: %v", err)
}
ip, ipNet, err := net.ParseCIDR(c.IP)
if err != nil {
return fmt.Errorf("Unable to set up networking: %v", err)
}
if err := netlink.NetworkLinkAddIp(iface, ip, ipNet); err != nil {
return fmt.Errorf("Unable to set up networking: %v", err)
}
if c.Gateway != "" {
if err := netlink.AddDefaultGw(c.Gateway, "eth0"); err != nil {
return fmt.Errorf("Unable to set up networking: %v", err)
}
}
if err := netlink.NetworkLinkUp(iface); err != nil {
return fmt.Errorf("Unable to set up networking: %v", err)
}
return nil
}