func (c *containerLXC) OnNetworkUp(deviceName string, hostName string) error {
	device := c.expandedDevices[deviceName]
	device["host_name"] = hostName
	return c.setupHostVethDevice(device)
}
func (c *containerLXC) OnNetworkUp(deviceName string, hostName string) error {
	device := c.expandedDevices[deviceName]
	device["host_name"] = hostName
	return c.setupHostVethDevice(device)
}
// OnNetworkUp is called by the LXD callhook when the LXC network up script is run.