@classmethod
def ce_freeze(cls, srv, *options, **kwargs):
    """
        Obtain a copy of the current environment
        """
    srvd = cls._ocean._get(srv)
    cls._proxy_ssh(srvd['ce-proxies'], srvd['ce-user'], 
        'OCEAN_PATH=~/ocean OCEAN_MANIFEST=~/ocean/manifest/manifest.json DOCKER_HOST=%s ocean freeze %s'
         % (srvd['ce-docker'], srv))
