Add shared_storage_test methods to compute rpcapi.

Part of bug 1006467.

This patch adds 3 methods used to check if shared storage works between
two compute hosts to the compute rpcapi.  These methods are used by the
scheduler.

This also cuts down on some duplicated code in test_scheduler.

Change-Id: If0bf7f7fdd2beb0e5280ae52daf049372f8bc9e2

1 files changed, 6 insertions, 10 deletions

diff --git a/nova/scheduler/driver.py b/nova/scheduler/driver.py
index 94c3395fe..bcdc6ce10 100644
--- a/nova/scheduler/driver.py
+++ b/nova/scheduler/driver.py
@@ -489,21 +489,17 @@ class Scheduler(object):
         """
 
         src = instance_ref['host']
-        dst_t = rpc.queue_get_for(context, FLAGS.compute_topic, dest)
-        src_t = rpc.queue_get_for(context, FLAGS.compute_topic, src)
 
-        filename = rpc.call(context, dst_t,
-                            {"method": 'create_shared_storage_test_file'})
+        filename = self.compute_rpcapi.create_shared_storage_test_file(context,
+                dest)
 
         try:
             # make sure existence at src host.
-            ret = rpc.call(context, src_t,
-                        {"method": 'check_shared_storage_test_file',
-                        "args": {'filename': filename}})
+            ret = self.compute_rpcapi.check_shared_storage_test_file(context,
+                    filename, src)
 
         finally:
-            rpc.cast(context, dst_t,
-                    {"method": 'cleanup_shared_storage_test_file',
-                    "args": {'filename': filename}})
+            self.compute_rpcapi.cleanup_shared_storage_test_file(context,
+                    filename, dest)
 
         return ret