ceph: catch exceptions thrown during the rados handle init

In my case, making ceph.conf unreadable triggers an exception here:

Traceback (most recent call last):
  File "./ceph", line 802, in <module>
    sys.exit(main())
  File "./ceph", line 575, in main
    conf_defaults=conf_defaults, conffile=conffile)
  File "/home/sage/src/ceph/src/pybind/rados.py", line 221, in __init__
    self.conf_read_file(conffile)
  File "/home/sage/src/ceph/src/pybind/rados.py", line 272, in conf_read_file
    raise make_ex(ret, "error calling conf_read_file")
rados.Error: error calling conf_read_file: errno EACCES

Signed-off-by: Sage Weil <sage@inktank.com>

1 files changed, 9 insertions, 3 deletions

diff --git a/src/ceph.in b/src/ceph.in
index 6c528a47473..94de9b7f4bd 100755
--- a/src/ceph.in
+++ b/src/ceph.in
@@ -568,10 +568,16 @@ def main():
     if parsed_args.cluster:
         clustername = parsed_args.cluster
 
-    cluster_handle = rados.Rados(name=name, clustername=clustername,
-                                 conf_defaults=conf_defaults, conffile=conffile)
+    try:
+        cluster_handle = rados.Rados(name=name, clustername=clustername,
+                                     conf_defaults=conf_defaults,
+                                     conffile=conffile)
+        retargs = cluster_handle.conf_parse_argv(childargs)
+    except rados.Error as e:
+        print >> sys.stderr, 'Error initializing cluster client: {0}'.\
+            format(e.__class__.__name__)
+        return 1
 
-    retargs = cluster_handle.conf_parse_argv(childargs)
     #tmp = childargs
     childargs = retargs
     if not childargs: