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August 20, 2010 00:58
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#!/bin/sh | |
# | |
# init.d script for single or multiple unicorn installations. Expects at least one .conf | |
# file in /etc/unicorn | |
# | |
# Modified by jay@gooby.org http://github.com/jaygooby | |
# based on http://gist.github.com/308216 by http://github.com/mguterl | |
# | |
## A sample /etc/unicorn/my_app.conf | |
## | |
## RAILS_ENV=production | |
## RAILS_ROOT=/var/apps/www/my_app/current | |
# | |
# This configures a unicorn master for your app at /var/apps/www/my_app/current running in | |
# production mode. It will read config/unicorn.rb for further set up. | |
# | |
# You should ensure different ports or sockets are set in each config/unicorn.rb if | |
# you are running more than one master concurrently. | |
# | |
# If you call this script without any config parameters, it will attempt to run the | |
# init command for all your unicorn configurations listed in /etc/unicorn/*.conf | |
# | |
# /etc/init.d/unicorn start # starts all unicorns | |
# | |
# If you specify a particular config, it will only operate on that one | |
# | |
# /etc/init.d/unicorn start /etc/unicorn/my_app.conf | |
set -e | |
sig () { | |
test -s "$PID" && kill -$1 `cat "$PID"` | |
} | |
oldsig () { | |
test -s "$OLD_PID" && kill -$1 `cat "$OLD_PID"` | |
} | |
cmd () { | |
case $1 in | |
start) | |
sig 0 && echo >&2 "Already running" && exit 0 | |
echo "Starting" | |
$CMD | |
;; | |
stop) | |
sig QUIT && echo "Stopping" && exit 0 | |
echo >&2 "Not running" | |
;; | |
force-stop) | |
sig TERM && echo "Forcing a stop" && exit 0 | |
echo >&2 "Not running" | |
;; | |
restart|reload) | |
sig USR2 && sleep 5 && oldsig QUIT && echo "Killing old master" `cat $OLD_PID` && exit 0 | |
echo >&2 "Couldn't reload, starting '$CMD' instead" | |
$CMD | |
;; | |
upgrade) | |
sig USR2 && echo Upgraded && exit 0 | |
echo >&2 "Couldn't upgrade, starting '$CMD' instead" | |
$CMD | |
;; | |
rotate) | |
sig USR1 && echo rotated logs OK && exit 0 | |
echo >&2 "Couldn't rotate logs" && exit 1 | |
;; | |
*) | |
echo >&2 "Usage: $0 <start|stop|restart|upgrade|rotate|force-stop>" | |
exit 1 | |
;; | |
esac | |
} | |
setup () { | |
echo -n "$RAILS_ROOT: " | |
cd $RAILS_ROOT || exit 1 | |
export PID=$RAILS_ROOT/tmp/pids/unicorn.pid | |
export OLD_PID="$PID.oldbin" | |
CMD="/usr/bin/unicorn_rails -c config/unicorn.rb -E $RAILS_ENV -D" | |
} | |
start_stop () { | |
# either run the start/stop/reload/etc command for every config under /etc/unicorn | |
# or just do it for a specific one | |
# $1 contains the start/stop/etc command | |
# $2 if it exists, should be the specific config we want to act on | |
if [ $2 ]; then | |
. $2 | |
setup | |
cmd $1 | |
else | |
for CONFIG in /etc/unicorn/*.conf; do | |
# import the variables | |
. $CONFIG | |
setup | |
# run the start/stop/etc command | |
cmd $1 | |
done | |
fi | |
} | |
ARGS="$1 $2" | |
start_stop $ARGS |
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