PREIN

/bin/sh

getent group varnish >/dev/null || groupadd -r varnish
getent passwd varnish >/dev/null || \
	useradd -r -g varnish -d /var/lib/varnish -s /sbin/nologin \
		-c "Varnish http accelerator user" varnish
exit 0

PREUN

/bin/sh

if [ $1 -lt 1 ]; then
  /sbin/service varnish stop > /dev/null 2>&1
  /sbin/service varnishlog stop > /dev/null 2>&1
  /sbin/service varnishncsa stop > /dev/null 2>%1
  /sbin/chkconfig --del varnish
  /sbin/chkconfig --del varnishlog
  /sbin/chkconfig --del varnishncsa 
fi

POSTIN

/bin/sh

/sbin/chkconfig --add varnish
/sbin/chkconfig --add varnishlog
/sbin/chkconfig --add varnishncsa 
test -f /etc/varnish/secret || (mkpasswd > /etc/varnish/secret && chmod 0600 /etc/varnish/secret)