scripts/shared_storage : systemd helper scripts to mount shared storage post reboot

Reported-by: Hendrik Visage <hvjunk@gmail.com>
Change-Id: Ibcff56b00f45c8af54c1ae04974267c2180f5f63
BUG: 1452527
Signed-off-by: Jiffin Tony Thottan <jthottan@redhat.com>
Reviewed-on: https://review.gluster.org/17339
Smoke: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Niels de Vos <ndevos@redhat.com>
Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>

1 files changed, 37 insertions, 0 deletions

diff --git a/extras/mount-shared-storage.sh b/extras/mount-shared-storage.sh
new file mode 100755
index 00000000000..038a59aaabf
--- /dev/null
+++ b/extras/mount-shared-storage.sh
@@ -0,0 +1,37 @@
+#!/bin/bash
+#Post reboot there is a chance in which mounting of shared storage will fail
+#This will impact starting of features like NFS-Ganesha. So this script will
+#try to mount the shared storage if it fails
+#TODO : Do it for other glusterfs clients in /etc/fstab
+
+ms="var-run-gluster-shared_storage.mount"
+volume="gluster_shared_storage"
+failed=$(systemctl --failed | grep -c $ms)
+if [ $failed -eq 1 ]
+then
+        if systemctl restart $ms
+        then
+                #Restart worked just wait for sometime to make it reflect
+                sleep 5
+        else
+                #Restart failed, no point in further continuing
+                exit 1
+        fi
+fi
+
+# If we've reached this point, there wasn't a failed mountpoint
+# BUT we need to check for whether this haven't been called before the attempts
+# to the filesystem mounts, thus we need to check whether there is a glusterfs
+# in fstab and aren't mountedmount
+
+#In the logs I've seen ~4-5secs between the initial mount/start and the unmount
+
+gfc=$(sed -e 's/#.$//' </etc/fstab | grep -c $volume)
+gfm=$(grep -i $volume /proc/mounts | wc -l)
+
+if [ $gfm -lt $gfc ]
+then
+        exit 1
+fi
+
+exit 0