tests: override yaml to set client pid file to empty string

Due to http://tracker.ceph.com/issues/18309 the pid file for fuse clients
should always be set to the empty string. (Teuthology's default ceph.conf
sets it to /var/run/ceph/$cluster-$name.pid)

This commit adds a reusable yaml facet for this purpose.

Signed-off-by: Nathan Cutler <ncutler@suse.com>
(cherry picked from commit fe13664c8e166beceae0228480889a1830d553f2)

diff --git a/qa/overrides/no_client_pidfile.yaml b/qa/overrides/no_client_pidfile.yaml
new file mode 100644 (file)
index 0000000..4ea02f4
--- /dev/null
+++ b/qa/overrides/no_client_pidfile.yaml
@@ -0,0 +1,5 @@
+overrides:
+  ceph:
+    conf:
+      client:
+        pid file: ""