frodr@frodr-UX430UA:~$ sudo docker run -e CATTLE_AGENT_IP="193.90.52.92"  --rm --privileged -v /var/run/docker.sock:/var/run/docker.sock -v /var/lib/rancher:/var/lib/rancher rancher/agent:v1.2.10 http://193.90.52.92/v1/scripts/D925F05B0455EE806440:1514678400000:otAKr1NE7Dl2gtFw2vnUkF1N20

INFO: Running Agent Registration Process, CATTLE_URL=http://193.90.52.92/v1
INFO: Attempting to connect to: http://193.90.52.92/v1
INFO: http://193.90.52.92/v1 is accessible
Traceback (most recent call last):
  File "./resolve_url.py", line 21, in <module>
    client = from_env(url=url)
  File "/usr/local/lib/python2.7/dist-packages/cattle.py", line 45, in from_env
    return gdapi.from_env(prefix=prefix, factory=Client, **kw)
  File "/usr/local/lib/python2.7/dist-packages/gdapi.py", line 613, in from_env
    return _from_env(prefix=prefix, factory=factory, **args)
  File "/usr/local/lib/python2.7/dist-packages/gdapi.py", line 632, in _from_env
    return factory(**result)
  File "/usr/local/lib/python2.7/dist-packages/cattle.py", line 12, in __init__
    super(Client, self).__init__(*args, **kw)
  File "/usr/local/lib/python2.7/dist-packages/gdapi.py", line 197, in __init__
    self._load_schemas()
  File "/usr/local/lib/python2.7/dist-packages/gdapi.py", line 323, in _load_schemas
    obj = self._unmarshall(schema_text)
  File "/usr/local/lib/python2.7/dist-packages/gdapi.py", line 300, in _unmarshall
    object_pairs_hook=self.object_pairs_hook)
  File "/usr/lib/python2.7/json/__init__.py", line 352, in loads
    return cls(encoding=encoding, **kw).decode(s)
  File "/usr/lib/python2.7/json/decoder.py", line 364, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "/usr/lib/python2.7/json/decoder.py", line 382, in raw_decode
    raise ValueError("No JSON object could be decoded")
ValueError: No JSON object could be decoded
INFO: Configured Host Registration URL info: CATTLE_URL=http://193.90.52.92/v1 ENV_URL=
curl: no URL specified!
curl: try 'curl --help' or 'curl --manual' for more information
ERROR: returned
ERROR: --- START ---

ERROR: --- END ---
ERROR: Failed to load registration env from CATTLE_URL=http://193.90.52.92/v1 ENV_URL=