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@markottaviani
Created October 9, 2014 03:39
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monit conig for unicorn (broken)
check process unicorn
with pidfile /var/www/RescueRails_staging/current/tmp/pids/unicorn.pid
start program = "/etc/init.d/unicorn_RescueRails_staging start"
as uid deploy and gid deploy
stop program = "/etc/init.d/unicorn_RescueRails_staging stop"
as uid deploy and gid deploy
if mem is greater than 300.0 MB for 1 cycles then restart # eating up memory?
if cpu is greater than 50% for 2 cycles then alert # send an email to admin
if cpu is greater than 80% for 30 cycles then restart # hung process?
group unicorn
check process unicorn_worker_5000
with pidfile /var/www/RescueRails_staging/current/tmp/pids/unicorn.5000.pid
start program = "/bin/true"
stop program = "/etc/init.d/unicorn_RescueRails_staging kill_worker 5000"
if mem is greater than 350.0 MB for 1 cycles then restart
if cpu is greater than 80% for 30 cycles then restart
group unicorn_workers
check process unicorn_worker_5001
with pidfile /var/www/RescueRails_staging/current/tmp/pids/unicorn.5001.pid
start program = "/bin/true"
stop program = "/etc/init.d/unicorn_RescueRails_staging kill_worker 5001"
if mem is greater than 350.0 MB for 1 cycles then restart
if cpu is greater than 80% for 30 cycles then restart
group unicorn_workers
check process unicorn_worker_5002
with pidfile /var/www/RescueRails_staging/current/tmp/pids/unicorn.5002.pid
start program = "/bin/true"
stop program = "/etc/init.d/unicorn_RescueRails_staging kill_worker 5002"
if mem is greater than 350.0 MB for 1 cycles then restart
if cpu is greater than 80% for 30 cycles then restart
group unicorn_workers
#!/bin/sh
set -e
# Feel free to change any of the following variables for your app:
TIMEOUT=${TIMEOUT-60}
APP_ROOT=/var/www/RescueRails_staging/current
PID_DIR=$APP_ROOT/tmp/pids
PID=$PID_DIR/unicorn.pid
CMD="cd $APP_ROOT; bundle exec unicorn -D -c /var/www/RescueRails_staging/share
d/config/unicorn.rb -E staging"
AS_USER=deploy
set -u
OLD_PIN="$PID.oldbin"
sig () {
test -s "$PID" && kill -$1 `cat $PID`
}
oldsig () {
test -s $OLD_PIN && kill -$1 `cat $OLD_PIN`
}
workersig () {
workersig () {
workerpid="$APP_ROOT/tmp/pids/unicorn.$2.pid"
test -s "$workerpid" && kill -$1 `cat $workerpid`
}
run () {
if [ "$(id -un)" = "$AS_USER" ]; then
eval $1
else
su -c "$1" - $AS_USER
fi
}
case "$1" in
start)
sig 0 && echo >&2 "Already running" && exit 0
run "$CMD"
;;
stop)
sig QUIT && exit 0
echo >&2 "Not running"
;;
force-stop)
sig TERM && exit 0
echo >&2 "Not running"
;;
kill_worker)
workersig QUIT $2 && exit 0
echo >&2 "Worker not running"
;;
restart|reload)
sig USR2 && echo reloaded OK && exit 0
echo >&2 "Couldn't reload, starting '$CMD' instead"
run "$CMD"
;;
upgrade)
if sig USR2 && sleep 2 && sig 0 && oldsig QUIT
then
n=$TIMEOUT
while test -s $OLD_PIN && test $n -ge 0
do
printf '.' && sleep 1 && n=$(( $n - 1 ))
done
echo
if test $n -lt 0 && test -s $OLD_PIN
if test $n -lt 0 && test -s $OLD_PIN
then
echo >&2 "$OLD_PIN still exists after $TIMEOUT seconds"
exit 1
fi
exit 0
fi
echo >&2 "Couldn't upgrade, starting '$CMD' instead"
run "$CMD"
;;
reopen-logs)
sig USR1
;;
*)
echo >&2 "Usage: $0 <start|stop|restart|upgrade|force-stop|reopen-logs>"
exit 1
;;
esac
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