make gluster volume name configurable

changed code to look at configuration file for
the metadata gluster volume name. The default is still
gsmetadata

Change-Id: I9bf74b9566ea1c9716c42f7ced0f999e02824868
Signed-off-by: Thiago da Silva <thiago@redhat.com>
Reviewed-on: http://review.gluster.org/6225
Reviewed-by: Luis Pabon <lpabon@redhat.com>
Tested-by: Luis Pabon <lpabon@redhat.com>

gluster/swift/common/middleware/gswauth/swauth/middleware.py

@@ -92,7 +92,10 @@ class Swauth(object):
                     pass
                 raise ValueError(msg)
         self.swauth_remote_timeout = int(conf.get('swauth_remote_timeout', 10))
-        self.auth_account = '%sgsmetadata' % self.reseller_prefix
+
+        self.metadata_volume = conf.get('metadata_volume', 'gsmetadata')
+        self.auth_account = '%s%s' % (self.reseller_prefix,
+                                      self.metadata_volume)
         self.default_swift_cluster = conf.get(
             'default_swift_cluster',
             'local#http://127.0.0.1:8080/v1')

test/functional_auth/gswauth/conf/proxy-server.conf

@@ -64,6 +64,7 @@ user_test_tester3 = testing3
 use = egg:gluster_swift#swauth
 set log_name = swauth
 super_admin_key = swauthkey
+metadata_volume = gsmetadata
 
 [filter:cache]
 use = egg:swift#memcache

test/unit/common/middleware/gswauth/swauth/test_middleware.py

@@ -194,6 +194,20 @@ class TestAuth(unittest.TestCase):
                           'Invalid auth_type in config file: %s' %
                           'Nonexistant')
 
+    def test_default_metadata_volume_init(self):
+        app = FakeApp()
+        ath = auth.filter_factory({})(app)
+        self.assertEquals(ath.metadata_volume, 'gsmetadata')
+
+    def test_conf_metadata_volume_init(self):
+        app = FakeApp()
+        ath = auth.filter_factory(
+            {'metadata_volume': 'meta_test'})(app)
+        self.assertEquals(ath.metadata_volume, 'meta_test')
+        ath = auth.filter_factory(
+            {'metadata_volume': 'new_meta_volume'})(app)
+        self.assertEquals(ath.metadata_volume, 'new_meta_volume')
+
     def test_default_swift_cluster_init(self):
         app = FakeApp()
         self.assertRaises(Exception, auth.filter_factory({