Autostart Adhearsion

adhearsion

#!/bin/sh
### BEGIN INIT INFO
# Provides: adhearsion
# Required-Start: $all
# Required-Stop: $network $local_fs $syslog
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Start the adhearsions at boot
# Description: Enable at boot time.
### END INIT INFO
 
# This is /etc/init.d/adhearsion (without .sh)
# init.d script for single or multiple adhearsion installations. Expects at least one .conf 
# file in /etc/adhearsion
#
# Modified by http://github.com/killercup
# based on modified version by [email protected] http://github.com/jaygooby
# which is based on http://gist.github.com/308216 by http://github.com/mguterl
#
## A sample /etc/adhearsion/my_app.conf
## 
## AHN_ENV=production
## AHN_ROOT=/var/apps/www/my_app/current
## AHN_RUBY="/usr/local/rvm/bin/<WRAPPED_NAME>" #see rvm wrapper above
#
# This configures a unicorn master for your app at /var/apps/www/my_app/current running in
# production mode.
#
# 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/adhearsion/*.conf
#
# /etc/init.d/adhearsion start # starts all adhearsions
#
# If you specify a particular config, it will only operate on that one
#
# /etc/init.d/adhearsion start my_app
 
set -e
set -u
 
 
cmd () {
 
  case $1 in
    start)
      ${AHN_RUBY} ahn daemon "${AHN_ROOT}"
      ;;
    stop)
      ${AHN_RUBY} ahn stop "${AHN_ROOT}"
      ;;
    restart)
      ${AHN_RUBY} ahn stop "${AHN_ROOT}"
      ${AHN_RUBY} ahn daemon "${AHN_ROOT}"
      ;;
    *)
      echo >&2 "Usage: $0 <start|stop|restart>"
      exit 1
      ;;
    esac
}
 
setup () {
  cd "${AHN_ROOT}/script" || exit 1
  export AHN_ENV=${AHN_ENV}
}
 
start_stop () {
  # either run the start/stop/reload/etc command for every config under /etc/adhearsion
  # or just do it for a specific one
 
  # $1 contains the start/stop/etc command
  # $2 if it exists, should be the specific config we want to act on
  if [ "$#" -eq 2 ]; then
    . /etc/adhearsion/$2.conf
    setup
    cmd $1
  else
    for CONFIG in /etc/adhearsion/*.conf; do
      # import the variables
      . $CONFIG
      setup
 
      # run the start/stop/etc command
      cmd $1
    done
   fi
}

if [ "$#" -eq 2 ]; then  
    ARGS="$1 $2"
else
    ARGS="$1"
fi
start_stop $ARGS

Autostart Adhearsion

Adhearsion init.d script
Working with Ubuntu 12.04 and RVM on EC2

1. Copy-paste adhearsion content to "/etc/init.d/" directory
2. Run "sudo chmod +x /etc/init.d/adhearsion"
3. Run "sudo /usr/sbin/update-rc.d -f adhearsion"
4. Create /etc/adhearsion directory (one configuration file per app)
5. Configure your applications in /etc/adhearsion/{app_name}.conf (sample code in "my_app.conf")
6. Run your service with "sudo service adhearsion start"

For app configuration:
- AHN_ROOT: your application directory
- AHN_ENV: your application environment
- AHN_RUBY: your ruby binary

Have fun :-)

my_app.conf

AHN_ROOT=/home/ubuntu/adhearsion/my_app
AHN_ENV=production
AHN_RUBY=/home/ubuntu/.rvm/bin/my_app_ruby