Init script for mapping/unmapping rbd device on startup and shutdown.
On start, map rbd dev according to /etc/rbdmap, and force mount -a
On stop, umount file system depending on rbd and unmap all rbd
Since some distribution use symlink for /etc/mtab, the user-space attribute _netdev is not enough to umount file system before rbd dev.
(also concern: #1790)
Signed-off-by: Laurent Barbe <laurent@xxxxxxxxxxx>
---
src/init-rbdmap | 103 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
src/rbdmap | 3 ++
2 files changed, 106 insertions(+)
create mode 100755 src/init-rbdmap
create mode 100644 src/rbdmap
diff --git a/src/init-rbdmap b/src/init-rbdmap
new file mode 100755
index 0000000..a2187ce
--- /dev/null
+++ b/src/init-rbdmap
@@ -0,0 +1,103 @@
+#!/bin/bash
+
+### BEGIN INIT INFO
+# Provides: rbdmap
+# Required-Start: $network
+# Required-Stop: $network
+# Default-Start: 2 3 4 5
+# Default-Stop: 0 1 6
+# Short-Description: Ceph RBD Mapping
+# Description: Ceph RBD Mapping
+### END INIT INFO
+
+DESC="RBD Mapping"
+RBDMAPFILE="/etc/rbdmap"
+
+. /lib/lsb/init-functions
+
+do_map() {
+ if [ ! -f "$RBDMAPFILE" ]; then
+ log_warning_msg "$DESC : No $RBDMAPFILE found."
+ exit 0
+ fi
+
+ log_daemon_msg "Starting $DESC"
+ # Read /etc/rbdtab to create non-existant mapping
+ newrbd=
+ RET=0
+ while read DEV PARAMS; do
+ case "$DEV" in
+ ""|\#*)
+ continue
+ ;;
+ */*)
+ ;;
+ *)
+ DEV=rbd/$DEV
+ ;;
+ esac
+ OIFS=$IFS
+ IFS=','
+ for PARAM in ${PARAMS[@]}; do
+ CMDPARAMS="$CMDPARAMS --$(echo $PARAM | tr '=' ' ')"
+ done
+ IFS=$OIFS
+ if [ ! -b /dev/rbd/$DEV ]; then
+ log_progress_msg $DEV
+ rbd map $DEV $CMDPARAMS
+ [ $? -ne "0" ] && RET=1
+ newrbd="yes"
+ fi
+ done < $RBDMAPFILE
+ log_end_msg $RET
+
+ # Mount new rbd
+ if [ "$newrbd" ]; then
+ log_action_begin_msg "Mounting all filesystems"
+ mount -a
+ log_action_end_msg $?
+ fi
+}
+
+do_unmap() {
+ log_daemon_msg "Stopping $DESC"
+ RET=0
+ # Unmap all rbd device
+ for DEV in /dev/rbd[0-9]*; do
+ log_progress_msg $DEV
+ # Umount before unmap
+ MNTDEP=$(findmnt --mtab --source $DEV --output TARGET | sed 1,1d | sort -r)
+ for MNT in $MNTDEP; do
+ umount $MNT || sleep 1 && umount -l $DEV
+ done
+ rbd unmap $DEV
+ [ $? -ne "0" ] && RET=1
+ done
+ log_end_msg $RET
+}
+
+
+case "$1" in
+ start)
+ do_map
+ ;;
+
+ stop)
+ do_unmap
+ ;;
+
+ reload)
+ do_map
+ ;;
+
+ status)
+ rbd showmapped
+ ;;
+
+ *)
+ log_success_msg "Usage: rbdmap {start|stop|reload|status}"
+ exit 1
+ ;;
+esac
+
+exit 0
diff --git a/src/rbdmap b/src/rbdmap
new file mode 100644
index 0000000..9d34e9e
--- /dev/null
+++ b/src/rbdmap
@@ -0,0 +1,3 @@
+# RbdDevice Parameters
+#rbd/rbddevice id=client,keyring=/etc/ceph/ceph.client.keyring
+
--
1.8.1.2
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