PREIN

/bin/sh

getent group mongodb >/dev/null || groupadd -r mongodb
getent passwd mongodb >/dev/null || \
useradd -r -g mongodb -d /var/lib/mongodb -s /sbin/nologin \
-c "MongoDB Database Server" mongodb
exit 0

PREUN

/bin/sh

if [ $1 = 0 ] ; then
    /sbin/service  stop >/dev/null 2>&1
    /sbin/chkconfig --del mongod
fi

POSTIN

/bin/sh

/sbin/chkconfig --add mongod

POSTUN

/bin/sh

if [ "$1" -ge "1" ] ; then
    /sbin/service mongod condrestart >/dev/null 2>&1 || :
fi