Add missing stores to setup.cfg

Add the missing stores to setup.cfg and add the old stores to keep
backwards compatibility. In addition, raise an error if a store
entry_point is not found.

Change-Id: I41ffff47d26e2c1bf9b89ed3d0f459bca4d9f731

glance_store/backend.py

@@ -58,8 +58,13 @@ def register_opts(conf):
 
 def register_store_opts(conf):
     for store_entry in set(conf.glance_store.stores):
+        LOG.debug("Registering options for %s" % store_entry)
         store_cls = _load_store(conf, store_entry, False)
 
+        if store_cls is None:
+            msg = _('Store %s not found') % store_entry
+            raise exceptions.GlanceStoreException(message=msg)
+
         if store_cls.OPTIONS is not None:
             # NOTE(flaper87): To be removed in k-2. This should
             # give deployers enough time to migrate their systems

setup.cfg

@@ -27,11 +27,27 @@ glance_store.drivers =
     file = glance_store._drivers.filesystem:Store
     http = glance_store._drivers.http:Store
     swift = glance_store._drivers.swift:Store
+    rbd = glance_store._drivers.rbd:Store
+    s3 = glance_store._drivers.s3:Store
+    sheepdog = glance_store._drivers.sheepdog:Store
+    cinder = glance_store._drivers.cinder:Store
+    gridfs = glance_store._drivers.gridfs:Store
     vmware = glance_store._drivers.vmware_datastore:Store
 
     # TESTS ONLY
     no_conf = glance_store.tests.fakes:UnconfigurableStore
 
+    # Backwards compatibility
+    glance.store.filesystem.Store = glance_store._drivers.filesystem:Store
+    glance.store.http.Store = glance_store._drivers.http:Store
+    glance.store.swift.Store = glance_store._drivers.swift:Store
+    glance.store.rbd.Store = glance_store._drivers.rbd:Store
+    glance.store.s3.Store = glance_store._drivers.s3:Store
+    glance.store.sheepdog.Store = glance_store._drivers.sheepdog:Store
+    glance.store.cinder.Store = glance_store._drivers.cinder:Store
+    glance.store.gridfs.Store = glance_store._drivers.gridfs:Store
+    glance.store.vmware_datastore.Store = glance_store._drivers.vmware_datastore:Store
+
 [build_sphinx]
 source-dir = doc/source
 build-dir = doc/build