Script that checks whether lighttpd is still up, and if not: - e-mail the last bit of log files - kick some life back into it

check.sh

#!/bin/bash
# Script that checks whether lighttpd is still up, and if not:
# - e-mail the last bit of log files
# - kick some life back into it
# -- Thomas, 20050606

PATH=/bin:/usr/bin
THEDIR=/tmp/lighttpd-watchdog
EMAIL=
PATH=
mkdir -p $THEDIR

if ( wget --timeout=5 --dns-timeout=5 --connect-timeout=5 --read-timeout=5 -q -P $THEDIR $PATH )
then
    # we are up
    touch ~/.lighttpd-was-up
    echo "$(date) - UP"
else
    echo "$(date) - DOWN"
    # write a nice e-mail
    echo -n "Subject: Lighttpd crashed at " > $THEDIR/mail
    date >> $THEDIR/mail
    echo >> $THEDIR/mail
    echo >> $THEDIR/mail
    ps aux >> $THEDIR/mail
    # kick lighttpd
    echo "Now kicking lighttpd..." >> $THEDIR/mail
    /etc/init.d/lighttpd stop >> $THEDIR/mail 2>&1
    killall -9 lighttpd >> $THEDIR/mail 2>&1
    /etc/init.d/lighttpd start >> $THEDIR/mail 2>&1
    # send the mail
    echo >> $THEDIR/mail
    lsof -n >> $THEDIR/mail 2>&1
    echo >> $THEDIR/mail
    echo "Good luck!" >> $THEDIR/mail
    /usr/sbin/ssmtp $EMAIL < $THEDIR/mail
    rm ~/.lighttpd-was-up
fi

rm -rf $THEDIR