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Unicorn Init on boot with config

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config.rb
Ruby
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# Minimal sample configuration file for Unicorn (not Rack) when used
# with daemonization (unicorn -D) started in your working directory.
#
# See http://unicorn.bogomips.org/Unicorn/Configurator.html for complete
# documentation.
# See also http://unicorn.bogomips.org/examples/unicorn.conf.rb for
# a more verbose configuration using more features.
 
listen 2007 # by default Unicorn listens on port 8080
worker_processes 1 # this should be >= nr_cpus
pid "/var/www/app/tmp/pids/unicorn.pid"
stderr_path "/var/www/app/log/unicorn.log"
stdout_path "/var/www/app/log/unicorn.log"
unicorn-init.sh
Shell
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#!/bin/sh
### BEGIN INIT INFO
# Provides: APPLICATION
# Required-Start: $all
# Required-Stop: $network $local_fs $syslog
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Start the APPLICATION unicorns at boot
# Description: Enable APPLICATION at boot time.
### END INIT INFO
 
set -e
# Example init script, this can be used with nginx, too,
# since nginx and unicorn accept the same signals
 
# Feel free to change any of the following variables for your app:
TIMEOUT=${TIMEOUT-60}
ENVIRONMENT=development
APP_ROOT=/var/www/app
PID=$APP_ROOT/tmp/pids/unicorn.pid
CMD="unicorn -D -E $ENVIRONMENT -c $APP_ROOT/config/unicorn.rb"
#INIT_CONF=$APP_ROOT/config/unicorn.rb
action="$1"
set -u
 
# test -f "$INIT_CONF" && . $INIT_CONF
 
old_pid="$PID.oldbin"
 
cd $APP_ROOT || exit 1
 
sig () {
test -s "$PID" && kill -$1 `cat $PID`
}
 
oldsig () {
test -s $old_pid && kill -$1 `cat $old_pid`
}
 
case $action in
start)
sig 0 && echo >&2 "Already running" && exit 0
$CMD
;;
stop)
sig QUIT && exit 0
echo >&2 "Not running"
;;
force-stop)
sig TERM && exit 0
echo >&2 "Not running"
;;
restart|reload)
sig HUP && echo reloaded OK && exit 0
echo >&2 "Couldn't reload, starting '$CMD' instead"
$CMD
;;
upgrade)
if sig USR2 && sleep 2 && sig 0 && oldsig QUIT
then
n=$TIMEOUT
while test -s $old_pid && test $n -ge 0
do
printf '.' && sleep 1 && n=$(( $n - 1 ))
done
echo
 
if test $n -lt 0 && test -s $old_pid
then
echo >&2 "$old_pid still exists after $TIMEOUT seconds"
exit 1
fi
exit 0
fi
echo >&2 "Couldn't upgrade, starting '$CMD' instead"
$CMD
;;
reopen-logs)
sig USR1
;;
*)
echo >&2 "Usage: $0 <start|stop|restart|upgrade|force-stop|reopen-logs>"
exit 1
;;
esac

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