Proxy_monitor.sh fixed

chudy

I'm always monitoring squid. proxy_monitor.sh doesn't work as expected. so I've modified some. now its final.


#!/bin/sh
set -e
LOOP_SLEEP=10
sleep 5
while [ /bin/true ] ; do
        if [  ! -f /var/run/squid_alarm ]; then
                NUM_PROCS=`ps auxw | grep "(squid) -D" | grep -v grep |awk '{print $2}'| wc -l | awk '{ print $1 }'`
                if [ $NUM_PROCS -lt 1 ]; then
                        echo "Squid has exited.  Reconfiguring filter." | \
                                logger -p daemon.info -i -t Squid_Alarm
                        /etc/rc.filter_configure_sync
                        echo "Attempting restart..." | logger -p daemon.info -i -t Squid_Alarm
                        /usr/local/etc/rc.d/squid.sh start
#if error squid will retry 5 times for about 13secs trying to run squid child process so wait 15secs.
                        sleep 15
                        touch /var/run/squid_alarm
                fi
        fi
        NUM_PROCS=`ps auxw | grep "(squid) -D"| grep -v grep |awk '{print $2}'| wc -l | awk '{ print $1 }'`
        if [ $NUM_PROCS -gt 0 ]; then
                if [ -f /var/run/squid_alarm ]; then
                        echo "Squid has resumed. Reconfiguring filter." | \
                                logger -p daemon.info -i -t Squid_Alarm
                        /etc/rc.filter_configure_sync
                        rm /var/run/squid_alarm
                fi
        fi
        sleep $LOOP_SLEEP
done

service-utils.inc sees anything squid from process as service even```
tail -f /var/squid/log/cache.log

This is why /etc/rc.filter_configure_sync won't remove redirect from pf nat :( so be careful when debugging squid ;)
To fix that.Modify squid.inc to double check if squid -D is running(squid name in path. services detects squid is running)

	$squid_conf = $config['installedpackages']['squid']['config'][0];
if ((!is_service_running('squid')) || (!is_process_running('squid -D'))){
	log_error("SQUID is installed but not started.  Not installing redirect rules.");
	return;
}

but there's always a better way than proxy_monitor.sh which will exactly run script when squid dies or shutdown.

ktims

It works, and in this situation has the identical meaning.

serangku

may i know … what this goal ? btw, i would like to try it soon :)