Error on list_layers or get_layer operations of GeoServerSpatialDatasetEngine

[swainn]

I get the following error when trying to call list_layers() or get_layer(...) operations for GeoServer:

[Errno 113] No route to host

Request Method: POST
Request URL: http://192.168.99.134:8000/apps/geoserver-app/map/

Django Version: 1.9.9
Python Version: 2.7.6
Installed Applications:
('django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'django_gravatar',
'bootstrap3',
'termsandconditions',
'tethys_config',
'tethys_apps',
'tethys_gizmos',
'tethys_services',
'tethys_compute',
'social.apps.django_app.default',
'guardian')
Installed Middleware:
('django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware',
'tethys_portal.middleware.TethysSocialAuthExceptionMiddleware')

Traceback:

File "/usr/lib/tethys/local/lib/python2.7/site-packages/django/core/handlers/base.py" in get_response

1.                 response = self.process_exception_by_middleware(e, request)
   

File "/usr/lib/tethys/local/lib/python2.7/site-packages/django/core/handlers/base.py" in get_response

1.                 response = wrapped_callback(request, _callback_args, *_callback_kwargs)
   

File "/usr/lib/tethys/local/lib/python2.7/site-packages/django/contrib/auth/decorators.py" in _wrapped_view

1.             return view_func(request, _args, *_kwargs)
   

File "/usr/lib/tethys/src/tethys_apps/tethysapp/geoserver_app/controllers.py" in map

1. response = geoserver_engine.list_layers(with_properties=True)
   

File "/usr/lib/tethys/local/lib/python2.7/site-packages/tethys_dataset_services/engines/geoserver_engine.py" in list_layers

1.     return self._handle_list(layer_objects, with_properties, debug)
   

File "/usr/lib/tethys/local/lib/python2.7/site-packages/tethys_dataset_services/engines/geoserver_engine.py" in _handle_list

1.     gs_object_dicts = self._transcribe_geoserver_objects(gs_objects)
   

File "/usr/lib/tethys/local/lib/python2.7/site-packages/tethys_dataset_services/engines/geoserver_engine.py" in _transcribe_geoserver_objects

1.         gs_dict_list.append(self._transcribe_geoserver_object(gs_object))
   

File "/usr/lib/tethys/local/lib/python2.7/site-packages/tethys_dataset_services/engines/geoserver_engine.py" in _transcribe_geoserver_object

1.         if not callable(getattr(gs_object, attribute)):
   

File "/usr/lib/tethys/local/lib/python2.7/site-packages/geoserver/layer.py" in _get_default_style

1.     return self._resolve_style(element) if element is not None else None
   

File "/usr/lib/tethys/local/lib/python2.7/site-packages/geoserver/layer.py" in _resolve_style

1.         return self.catalog.get_style_by_url(style_workspace_url)
   

File "/usr/lib/tethys/local/lib/python2.7/site-packages/geoserver/catalog.py" in get_style_by_url

1.         dom = self.get_xml(style_workspace_url)
   

File "/usr/lib/tethys/local/lib/python2.7/site-packages/geoserver/catalog.py" in get_xml

1.         response, content = self.http.request(rest_url)
   

File "/usr/lib/tethys/local/lib/python2.7/site-packages/httplib2/init.py" in request

1.                 (response, content) = self._request(conn, authority, uri, request_uri, method, body, headers, redirections, cachekey)
   

File "/usr/lib/tethys/local/lib/python2.7/site-packages/httplib2/init.py" in _request

1.     (response, content) = self._conn_request(conn, request_uri, method, body, headers)
   

File "/usr/lib/tethys/local/lib/python2.7/site-packages/httplib2/init.py" in _conn_request

1.                 conn.connect()
   

File "/usr/lib/tethys/local/lib/python2.7/site-packages/httplib2/init.py" in connect

1.         raise socket.error, msg
   

Exception Type: error at /apps/geoserver-app/map/
Exception Value: [Errno 113] No route to host

[swainn]

You can replicate this issue by checking out the master branch of this demo app: https://github.com/tethysplatform/tethysapp-geoserver_app

Then change line 64 of controllers.py to:
response = geoserver_engine.list_layers(with_properties=True)

Reload the server and visit the map page (/apps/geoserver-app/map/) and you should get that error.