Idea for auto-deployment system for vhosted node.js apps

vhosted-node.sh

for DIR in /home/*/node; do
  PORT=[generate port based on crc32 of $DIR]
  # somehow check if not running
  NODE_ENV=dev NODE_PORT=$PORT node-dev $DIR/app.js
  cat /etc/nginx/configs.avail/default-node.conf | \
     sed -e s/DIR/$DIR/ | \
     sed -e s/PORT/$PORT > /etc/nginx/configs.enabled/node-$DIR.conf
  # somehow check if we actually created/changed a config here
  if [ $changed -eq 1 ]; then
       service nginx restart
  fi
done