OpenStack Dashboard (Horizon)

Diablo-2 HTTP queries

Asked by Alexej Ababilov

I am using nova diablo-2. When I visit most of the tabs, I see an error message in browser and output on console like this:

DEBUG:django_openstack.api:admin_api connection created using token "0585230347f85d8cb535fab274afd2fc31658e97" and url "http://127.0.0.1:8774/v1.1"
(u'http://127.0.0.1:8774/v1.1/services?fresh=1310500858.41', 'GET') {'headers': {'User-Agent': 'python-openstack-compute/2.0a1', 'X-Auth-Token': u'0585230347f85d8cb535fab274afd2fc31658e97'}}
ERROR:django_openstack.syspanel.views.instances:ApiException fetching service list in instance usage
Traceback (most recent call last):
  File "/usr/lib/python2.6/site-packages/django_openstack/syspanel/views/instances.py", line 84, in usage
    service_list = api.service_list(request)
  File "/usr/lib/python2.6/site-packages/django_openstack/api.py", line 378, in service_list
    return [Services(s) for s in admin_api(request).services.list()]
  File "/usr/lib/python2.6/site-packages/openstackx/admin/services.py", line 14, in list
    return self._list("/services", "services")
  File "/usr/lib/python2.6/site-packages/openstackx/api/base.py", line 27, in _list
    resp, body = self.api.connection.get(url)
  File "/usr/lib/python2.6/site-packages/openstackx/api/connection.py", line 78, in get
    return self._cs_request(url, 'GET', **kwargs)
  File "/usr/lib/python2.6/site-packages/openstackx/api/connection.py", line 63, in _cs_request
    **kwargs)
  File "/usr/lib/python2.6/site-packages/openstackx/api/connection.py", line 48, in request
    raise exceptions.from_response(resp, body)
NotFound: 404 Not Found

The resource could not be found.

    (HTTP 404)

The same error occurs with /v1.1/{extras,admin}/{flavors,images} and so on.
I used telnet to send queries to nova-api running on localhost:8774.

Current dashboard uses openstackx to create HTTP queries. For example, openstackx/admin/flavors.py contains FlavorManager with functions like this:
 def list(self):
       """
       Get a list of all flavors.

       :rtype: list of :class:`Flavor`.
       """
       return self._list("/admin/flavors", "flavors")

Dashboard does HTTP GET on localhost:8774/v1.1/admin/flavors and has error 404. Here is telnet imitation of dashboard's querying.

# telnet localhost 8774
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
GET /v1.1/admin/flavors HTTP/1.1
X-Auth-Token: 70a3d075-43a5-4825-a2e0-ca8497aa617c

HTTP/1.1 404 Not Found
Content-Length: 52
Content-Type: text/plain; charset=UTF-8
Date: Tue, 12 Jul 2011 23:24:06 GMT

404 Not Found

The resource could not be found.

Connection closed by foreign host.

Here I have removed "admin/" from path:
# telnet localhost 8774
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
GET /v1.1/flavors HTTP/1.1
X-Auth-Token: 70a3d075-43a5-4825-a2e0-ca8497aa617c

HTTP/1.1 200 OK
Content-Type: application/json
Content-Length: 1514
Date: Tue, 12 Jul 2011 23:21:12 GMT

{"flavors": [{"id": 3, "links": [{"href": "http://127.0.0.1:8774/v1.1/flavors/3", "rel": "self"}, {"href": "http://127.0.0.1:8774/v1.1/flavors/3", "type": "application/json", "rel": "bookmark"}, {"href": "http://127.0.0.1:8774/v1.1/flavors/3", "type": "application/xml", "rel": "bookmark"}], "name": "m1.medium"}, {"id": 4, "links": [{"href": "http://127.0.0.1:8774/v1.1/flavors/4", "rel": "self"}, {"href": "http://127.0.0.1:8774/v1.1/flavors/4", "type": "application/json", "rel": "bookmark"}, {"href": "http://127.0.0.1:8774/v1.1/flavors/4", "type": "application/xml", "rel": "bookmark"}], "name": "m1.large"}, {"id": 1, "links": [{"href": "http://127.0.0.1:8774/v1.1/flavors/1", "rel": "self"}, {"href": "http://127.0.0.1:8774/v1.1/flavors/1", "type": "application/json", "rel": "bookmark"}, {"href": "http://127.0.0.1:8774/v1.1/flavors/1", "type": "application/xml", "rel": "bookmark"}], "name": "m1.tiny"}, {"id": 5, "links": [{"href": "http://127.0.0.1:8774/v1.1/flavors/5", "rel": "self"}, {"href": "http://127.0.0.1:8774/v1.1/flavors/5", "type": "application/json", "rel": "bookmark"}, {"href": "http://127.0.0.1:8774/v1.1/flavors/5", "type": "application/xml", "rel": "bookmark"}], "name": "m1.xlarge"}, {"id": 2, "links": [{"href": "http://127.0.0.1:8774/v1.1/flavors/2", "rel": "self"}, {"href": "http://127.0.0.1:8774/v1.1/flavors/2", "type": "application/json", "rel": "bookmark"}, {"href": "http://127.0.0.1:8774/v1.1/flavors/2", "type": "application/xml", "rel": "bookmark"}], "name": "m1.small"}]}
Connection closed by foreign host.

So, I have patched openstackx and removed all "admin/" and "extras/". Now about 75% of dashboard functionality work on my machine (including flavors), but some queries always lead to 404 (for example, "/v1.1/admin/services","/v1.1/extras/services", and "/v1.1/services"; the same for "/v1.1/{extra/,admin/,}usage").

Should be openstackx patched? Should I try another version of nova?

Question information

Language:
English Edit question
Status:
Solved
For:
OpenStack Dashboard (Horizon) Edit question
Assignee:
No assignee Edit question
Solved by:
Mark Gius
Solved:
Last query:
Last reply:
Revision history for this message
Best Mark Gius (markgius) said : 		#1

The current version of the dashboard does not currently run with a vanilla distribution of nova.

The 404 errors you are receiving are due to using extensions provided by openstackx that have not been injected into the nova service.

I haven't tried running the dashboard against a vanilla nova since the project moved to github. The cloudbuilders openstack dev environment script applies the following flag to the nova service to include the extensions from openstackx:

--osapi_extensions_path=/path/to/openstackx/extensions"

If you're interested in running a purely development environment, the nova.sh script found here:

https://raw.github.com/cloudbuilders/deploy.sh/master/nova.sh

Sets up an openstack all-in-one box with nova, glance, keystone ready for development. If you're looking for a more production ready environment, that script should be helpful in finding the options you'll need to get an openstack environment running that the dashboard can interact with.

Revision history for this message
Alexej Ababilov (aababilov) said : 		#2

Thank you very much!