sinatra アプリケーションを unicorn で動かすときの unicorn の init スクリプト

unicorn.init

#!/bin/sh

# chkconfig: 345 60 40
# description: unicorn application server
# processname: unicorn

USER="ec2-user"
APP_ENV="production"
APP_ROOT="/home/ec2-user/www/foo/current"
UNICORN_CONF_FILE="$APP_ROOT/config/unicorn.rb"
PID="$APP_ROOT/tmp/pids/unicorn.pid"

BUNDLE="/usr/local/bin/bundle"

cd $APP_ROOT || exit 1

start() {
    su - $USER -c "cd $APP_ROOT && \
                   SINATRA_ENV=$APP_ENV RAILS_ENV=$APP_ENV \
                   $BUNDLE exec unicorn -c $UNICORN_CONF_FILE -E deployment -D"
}

sig() {
    test -s $PID && kill -$1 `cat $PID`
}

case "$1" in
    start)
        sig 0 && echo >&2 "Already running" && exit 0
        $1
        ;;
    stop)
        sig QUIT && exit 0
        echo >&2 "Not running"
        ;;
    force-stop)
        sig TERM && exit 0
        echo >&2 "Not running"
        ;;
    status)
        sig 0 && echo >&2 "unicorn is running" && exit 0
        echo >&2 "unicorn is not running"
        ;;
    *)
        echo $"Usage: $0 {start|stop|force-stop|status}"
        exit 2
esac

参考

• https://github.com/defunkt/unicorn/blob/master/examples/init.sh
• https://github.com/answer/unicorn-tools/blob/master/unicorn.init.sh
• https://gist.github.com/nebiros/2776085