Server error when querying /

[Kristi Nikolla]

When querying the root of the API, Server Error 500 is returned. This is because the path is analyzed for the presence of "volume" or "image", "v1" or "v2".

2017-06-23 18:01:13.436 23689 ERROR root [-] ['']
[2017-06-23 18:01:13,437] ERROR in app: Exception on / [GET]
Traceback (most recent call last):
  File "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 1982, in wsgi_app
    response = self.full_dispatch_request()
  File "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 1614, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 1517, in handle_user_exception
    reraise(exc_type, exc_value, tb)
  File "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 1612, in full_dispatch_request
    rv = self.dispatch_request()
  File "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 1598, in dispatch_request
    return self.view_functions[rule.endpoint](**req.view_args)
  File "./mixmatch/proxy.py", line 331, in proxy
    k2k_request = RequestHandler(request.method, path, request.headers)
  File "./mixmatch/proxy.py", line 95, in __init__
    self.details = get_details(method, path.split('/'), headers)
  File "./mixmatch/proxy.py", line 61, in get_details
    'service': get_service(path),
  File "./mixmatch/proxy.py", line 50, in get_service
    raise ValueError
ValueError

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/479368
Committed: https://git.openstack.org/cgit/openstack/mixmatch/commit/?id=199dbbaea896811ebb2f93567539ab4a7cc41aa4
Submitter: Jenkins
Branch: master

commit 199dbbaea896811ebb2f93567539ab4a7cc41aa4
Author: ltomatsu <email address hidden>
Date: Fri Jun 30 16:29:45 2017 +0000

    Return 404 rather than ValueError

    The get_service function returns ValueError
    when the service response is neither cinder
    nor glance. Switch this over to abort 404.

    Closes-Bug: #1700144
    Change-Id: If2cf585dd555eab4771a27fe6f272842a3d498fe