posix: if brick-uid or brick-gid is not specified, do not set

Current code would set owner uid/gid explicitly to 0/0 on start
even if none was specified. Fix it.

Cherry picked from commit 8bdc329:
> Change-Id: I72dec9e79c51bd1eb3af5334c42b7c23b01d0258
> BUG: 1040275
> Signed-off-by: Anand Avati <avati@redhat.com>
> Reviewed-on: http://review.gluster.org/6476
> Tested-by: Gluster Build System <jenkins@build.gluster.com>
> Tested-by: Lukáš Bezdička <lukas.bezdicka@gooddata.com>
> Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com>
> Reviewed-by: Vijay Bellur <vbellur@redhat.com>

Change-Id: Ie0396c1a4e6e0979ea9c855d33db963544a75c42
BUG: 1095971
Signed-off-by: Niels de Vos <ndevos@redhat.com>
Reviewed-on: http://review.gluster.org/7720
Tested-by: Gluster Build System <jenkins@build.gluster.com>

1 files changed, 47 insertions, 0 deletions

diff --git a/tests/bugs/brick-uid-reset-on-volume-restart.t b/tests/bugs/brick-uid-reset-on-volume-restart.t
new file mode 100755
index 00000000000..99629733f9b
--- /dev/null
+++ b/tests/bugs/brick-uid-reset-on-volume-restart.t
@@ -0,0 +1,47 @@
+#!/bin/bash
+
+. $(dirname $0)/../include.rc
+. $(dirname $0)/../volume.rc
+
+function get_uid() {
+    stat -c '%u' $1;
+}
+
+function get_gid() {
+    stat -c '%g' $1;
+}
+
+
+cleanup;
+
+TEST glusterd
+TEST pidof glusterd
+
+TEST $CLI volume create $V0 replica 2 stripe 2 $H0:$B0/${V0}{1,2,3,4,5,6,7,8};
+
+EXPECT "$V0" volinfo_field $V0 'Volume Name';
+EXPECT 'Created' volinfo_field $V0 'Status';
+EXPECT '8' brick_count $V0
+
+TEST $CLI volume start $V0;
+EXPECT 'Started' volinfo_field $V0 'Status';
+
+TEST glusterfs -s $H0 --volfile-id $V0 $M0;
+
+EXPECT 0 get_uid $M0;
+EXPECT 0 get_gid $M0;
+
+TEST chown 100:101 $M0;
+
+EXPECT 100 get_uid $M0;
+EXPECT 101 get_gid $M0;
+
+TEST $CLI volume stop $V0;
+TEST $CLI volume start $V0;
+
+sleep 10;
+
+EXPECT 100 get_uid $M0;
+EXPECT 101 get_gid $M0;
+
+cleanup;