mfs master init.d

#!/bin/sh

### BEGIN INIT INFO
# Provides:             mfs-master
# Required-Start:       $network $remote_fs
# Required-Stop:        $remote_fs
# Default-Start:        2 3 4 5
# Default-Stop:         0 1 6
# Short-Description:    Start mfs-master at boot time
# Description:          mfs-master provides metadata management for MooseFS.
### END INIT INFO

PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
DAEMON=/usr/sbin/mfsmaster
NAME=mfs-master-foo
DESC=mfs-master-foo
DEFAULT_USER=mfs
DEFAULT_GROUP=mfs
DEFAULT_DATADIR=/srv/mfs/foo
MFSMASTER_CONFIG_FILE=/etc/mfs/foo/mfsmaster.cfg

test -e $DAEMON || exit 0
test -e $MFSMASTER_CONFIG_FILE || exit 0

. /lib/lsb/init-functions

set -e

if [ -s "$MFSMASTER_CONFIG_FILE" ]; then
        DATADIR=$(sed -e 's/[   ]#.*$//' -n -e 's/^DATA_PATH[   ]*=[    ]*\([^  ]*\)[   ]*$/\1/p' "$MFSMASTER_CONFIG_FILE")
        MFSUSER=$(sed -e 's/[   ]#.*$//' -n -e 's/^WORKING_USER[        ]*=[    ]*\([^  ]*\)[   ]*$/\1/p' "$MFSMASTER_CONFIG_FILE")
        MFSGROUP=$(sed -e 's/[  ]#.*$//' -n -e 's/^WORKING_GROUP[       ]*=[    ]*\([^  ]*\)[   ]*$/\1/p' "$MFSMASTER_CONFIG_FILE")
else
        DATADIR=
        MFSUSER=
        MFSGROUP=
fi
: ${DATADIR:=$DEFAULT_DATADIR}
: ${MFSUSER:=$DEFAULT_USER}
: ${MFSGROUP:=$DEFAULT_GROUP}

check_dirs()
{
        # check that the metadata dir exists
        if [ ! -d "$DATADIR" ]; then
                exit 1
        fi
        chmod 0755 "$DATADIR"
        chown -R $MFSUSER:$MFSGROUP "$DATADIR"
        if [ ! -e "$DATADIR"/metadata.mfs ]; then
                if [ ! -e "$DATADIR"/metadata.mfs.back ]; then
                        echo "MFSM NEW" > "$DATADIR"/metadata.mfs
                fi
        fi
}

case "$1" in
        start)
                check_dirs
                echo "Starting $DESC:"
                $DAEMON ${MFSMASTER_CONFIG_FILE:+-c $MFSMASTER_CONFIG_FILE} $DAEMON_OPTS start
                ;;

        stop)
                echo "Stopping $DESC:"
                $DAEMON ${MFSMASTER_CONFIG_FILE:+-c $MFSMASTER_CONFIG_FILE} stop
                ;;

        reload|force-reload)
                echo "Reloading $DESC:"
                $DAEMON ${MFSMASTER_CONFIG_FILE:+-c $MFSMASTER_CONFIG_FILE} reload
                ;;

        status)
                set +e
                test -d $DATADIR || exit 1
                $DAEMON ${MFSMASTER_CONFIG_FILE:+-c $MFSMASTER_CONFIG_FILE} test && exit 1
                ;;

        restart)
                echo "Restarting $DESC:"
                $DAEMON ${MFSMASTER_CONFIG_FILE:+-c $MFSMASTER_CONFIG_FILE} restart
                ;;

        *)
                N=/etc/init.d/$NAME
                echo "Usage: $N {start|stop|restart|status|force-reload}" >&2
                exit 1
                ;;
esac

exit 0