make the fake-ldap system work again

1 files changed, 53 insertions, 0 deletions

diff --git a/nova/datastore.py b/nova/datastore.py
index e69de29bb..8e2519429 100644
--- a/nova/datastore.py
+++ b/nova/datastore.py
@@ -0,0 +1,53 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# Copyright 2010 United States Government as represented by the
+# Administrator of the National Aeronautics and Space Administration.
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+"""
+Datastore:
+
+MAKE Sure that ReDIS is running, and your flags are set properly,
+before trying to run this.
+"""
+
+import logging
+import redis
+
+from nova import flags
+
+FLAGS = flags.FLAGS
+flags.DEFINE_string('redis_host', '127.0.0.1',
+                    'Host that redis is running on.')
+flags.DEFINE_integer('redis_port', 6379,
+                    'Port that redis is running on.')
+flags.DEFINE_integer('redis_db', 0, 'Multiple DB keeps tests away')
+
+
+class Redis(object):
+    def __init__(self):
+        if hasattr(self.__class__, '_instance'):
+            raise Exception('Attempted to instantiate singleton')
+
+    @classmethod
+    def instance(cls):
+        if not hasattr(cls, '_instance'):
+            inst = redis.Redis(host=FLAGS.redis_host,
+                               port=FLAGS.redis_port,
+                               db=FLAGS.redis_db)
+            cls._instance = inst
+        return cls._instance
+
+