initial commit

bin/nova-volume

@@ -0,0 +1,68 @@
+#!/usr/bin/env python
+# vim: tabstop=4 shiftwidth=4 softtabstop
+
+# Copyright [2010] [Anso Labs, LLC]
+# 
+#    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.
+"""
+    Tornado Storage daemon manages AoE volumes via AMQP messaging.
+"""
+
+import logging
+
+from nova import vendor
+from tornado import ioloop
+
+from nova import flags
+from nova import rpc
+from nova import server
+from nova import utils
+from nova.volume import storage
+
+
+FLAGS = flags.FLAGS
+flags.DEFINE_integer('storage_report_state_interval', 10,
+                     'seconds between broadcasting state to cloud',
+                     lower_bound=1)
+
+
+def main(argv):
+    bs = storage.BlockStore()
+
+    conn = rpc.Connection.instance()
+    consumer_all = rpc.AdapterConsumer(
+            connection=conn,
+            topic='%s' % FLAGS.storage_topic,
+            proxy=bs)
+
+    consumer_node = rpc.AdapterConsumer(
+            connection=conn,
+            topic='%s.%s' % (FLAGS.storage_topic, FLAGS.node_name),
+            proxy=bs)
+
+    io_inst = ioloop.IOLoop.instance()
+    scheduler = ioloop.PeriodicCallback(
+            lambda: bs.report_state(),
+            FLAGS.storage_report_state_interval * 1000,
+            io_loop=io_inst)
+
+    injected = consumer_all.attachToTornado(io_inst)
+    injected = consumer_node.attachToTornado(io_inst)
+    scheduler.start()
+    io_inst.start()
+
+
+if __name__ == '__main__':
+    utils.default_flagfile()
+    server.serve('nova-volume', main)
+