Trying to delete images from Glance that have the Location set during registration (remote images) fails:
jpipes@librebox:~/repos/tempest$ glance -A servicetoken delete 203ed357-388c-4beb-9289-e98473dda896
Delete image 203ed357-388c-4beb-9289-e98473dda896? [y/N] y
Traceback (most recent call last):
File "/usr/local/bin/glance", line 7, in <module>
execfile(__file__)
File "/opt/stack/glance/bin/glance", line 947, in <module>
result = command(options, args)
File "/opt/stack/glance/bin/glance", line 394, in image_delete
c.delete_image(image_id)
File "/opt/stack/glance/glance/client.py", line 185, in delete_image
self.do_request("DELETE", "/images/%s" % image_id)
File "/opt/stack/glance/glance/common/client.py", line 46, in wrapped
return func(self, *args, **kwargs)
File "/opt/stack/glance/glance/common/client.py", line 328, in do_request
headers=headers)
File "/opt/stack/glance/glance/common/client.py", line 63, in wrapped
return func(self, method, url, body, headers)
File "/opt/stack/glance/glance/common/client.py", line 423, in _do_request
raise Exception("Internal Server error: %s" % res.read())
Exception: Internal Server error: Traceback (most recent call last):
File "/usr/lib/python2.7/dist-packages/eventlet/wsgi.py", line 336, in handle_one_response
result = self.application(self.environ, start_response)
File "/usr/lib/python2.7/dist-packages/webob/dec.py", line 147, in __call__
resp = self.call_func(req, *args, **self.kwargs)
File "/usr/lib/python2.7/dist-packages/webob/dec.py", line 208, in call_func
return self.func(req, *args, **kwargs)
File "/opt/stack/glance/glance/common/wsgi.py", line 194, in __call__
response = req.get_response(self.application)
File "/usr/lib/python2.7/dist-packages/webob/request.py", line 1053, in get_response
application, catch_exc_info=False)
File "/usr/lib/python2.7/dist-packages/webob/request.py", line 1022, in call_application
app_iter = application(self.environ, start_response)
File "/opt/stack/keystone/keystone/middleware/auth_token.py", line 212, in __call__
return self._forward_request(env, start_response, proxy_headers)
File "/opt/stack/keystone/keystone/middleware/auth_token.py", line 344, in _forward_request
return self.app(env, start_response)
File "/usr/lib/python2.7/dist-packages/webob/dec.py", line 147, in __call__
resp = self.call_func(req, *args, **self.kwargs)
File "/usr/lib/python2.7/dist-packages/webob/dec.py", line 208, in call_func
return self.func(req, *args, **kwargs)
File "/opt/stack/glance/glance/common/wsgi.py", line 194, in __call__
response = req.get_response(self.application)
File "/usr/lib/python2.7/dist-packages/webob/request.py", line 1053, in get_response
application, catch_exc_info=False)
File "/usr/lib/python2.7/dist-packages/webob/request.py", line 1022, in call_application
app_iter = application(self.environ, start_response)
File "/usr/lib/python2.7/dist-packages/webob/dec.py", line 159, in __call__
return resp(environ, start_response)
File "/usr/lib/pymodules/python2.7/routes/middleware.py", line 131, in __call__
response = self.app(environ, start_response)
File "/usr/lib/python2.7/dist-packages/webob/dec.py", line 159, in __call__
return resp(environ, start_response)
File "/usr/lib/python2.7/dist-packages/webob/dec.py", line 147, in __call__
resp = self.call_func(req, *args, **self.kwargs)
File "/usr/lib/python2.7/dist-packages/webob/dec.py", line 208, in call_func
return self.func(req, *args, **kwargs)
File "/opt/stack/glance/glance/common/wsgi.py", line 392, in __call__
request, **action_args)
File "/opt/stack/glance/glance/common/wsgi.py", line 409, in dispatch
return method(*args, **kwargs)
File "/opt/stack/glance/glance/api/v1/images.py", line 583, in delete
req.context, id)
File "/opt/stack/glance/glance/store/__init__.py", line 181, in schedule_delete_from_backend
return delete_from_backend(uri, **kwargs)
File "/opt/stack/glance/glance/store/__init__.py", line 142, in delete_from_backend
raise exception.StoreDeleteNotSupported
StoreDeleteNotSupported: Deleting images from this store is not supported.
We should not error out if the backend does not support deletion. We should simply log an informative message and return a successful result.
Just to clarify, is the intent to either:
a) Change the glance CLI so that an error return from a DELETE call is handled in a more graceful way, i.e. consume the 500 Internal Server Error status & traceback message and return a successful exit status to the shell.
or:
b) Change the semantics and implementation of the Glance REST API, so that a DELETE on an undeletable image returns a pseudo-successful status (i.e. 204 No Content).
Approach (b) would seem to discard information that would be potentially useful to some clients.