Returns the LXC path (default on ubuntu is /var/lib/lxc)

def lxc_path(cls, *join_paths):
        """Returns the LXC path (default on ubuntu is /var/lib/lxc)"""
        response = subwrap.run(['lxc-ls', '-d'])
        output = response.std_out
        lxc_path = output.splitlines()[0]
        lxc_path = lxc_path.strip()
        return os.path.join(lxc_path, *join_paths)