RightScale script to generate rails database.yml file upon server launch

gistfile1.txt

#!/bin/bash -ex
# Create database.yml for a Ruby on Rails application
# Storing database.yml in a source code control system with its production database credentials creates a security risk. 
# Using this script, you can take advantage of RightScale's secure credentials store 
# and generate the file when an application server is launched.
#

# If this is a reboot skip this script.
if test "$RS_REBOOT" = "true" ; then
  logger -t RightScale "Skip RB create database.yml."
  exit 0
fi

# Create database.yml file
cat <<EOF >/home/webapps/$APPLICATION/shared/system/config/database.yml
$RAILS_ENV:
  adapter: mysql2
  host: $MASTER_DB_DNSNAME
  port: 3306
  encoding: utf8
  reconnect: false
  database: $DB_SCHEMA_NAME
  pool: 5
  username: $DBAPPLICATION_USER
  password: $DBAPPLICATION_PASSWORD
EOF

ln -nfs /home/webapps/$APPLICATION/shared/system/config/database.yml /home/webapps/$APPLICATION/current/config/database.yml

logger -t RightScale "database.yml created."