PREIN

/bin/sh

getent group carbon >/dev/null || groupadd -r carbon
getent passwd carbon >/dev/null || \
    useradd -r -g carbon -d /var/lib/carbon \
    -s /sbin/nologin -c "Carbon cache daemon" carbon

PREUN

/bin/sh

if [ $1 -eq 0 ] ; then
    /sbin/service carbon-cache stop >/dev/null 2>&1
    /sbin/chkconfig --del carbon-cache
    /sbin/service carbon-relay stop >/dev/null 2>&1
    /sbin/chkconfig --del carbon-relay
    /sbin/service carbon-aggregator stop >/dev/null 2>&1
    /sbin/chkconfig --del carbon-aggregator
fi

POSTIN

/bin/sh

/sbin/chkconfig --add carbon-cache
/sbin/chkconfig --add carbon-relay
/sbin/chkconfig --add carbon-aggregator