/etc/init.d/thin - replacement that runs bundle exec thin within each site

thin.sh

#!/bin/bash
### BEGIN INIT INFO
# Provides:          thin
# Required-Start:    $local_fs $remote_fs
# Required-Stop:     $local_fs $remote_fs
# Default-Start:     2 3 4 5
# Default-Stop:      S 0 1 6
# Short-Description: thin initscript
# Description:       thin
### END INIT INFO

## instead of using the installed script at /usr/local/ruby/bin/thin which
## fires up thin without bundler, this will cd into each site found in
## /etc/thin and run 'bundle exec thin'. Not pretty, but it is necessary to
## launch thin with bundler to avoid gem versioning conflicts

SCRIPT_NAME=/etc/init.d/thin
CONFIG_PATH=/etc/thin
BUNDLE_CMD=/usr/local/ruby/bin/bundle

bundle_exec_thin ()
{
        for CONFIG_FILE in "$CONFIG_PATH/*.yml"; do
           SITE_DIR=`awk '/^chdir:/ { print $2; }' $CONFIG_FILE`
           cd $SITE_DIR
           $BUNDLE_CMD exec thin $1 -C $CONFIG_FILE
        done
}


case "$1" in
  start)
        bundle_exec_thin start
        ;;
  stop)
        bundle_exec_thin stop
        ;;
  restart)
        bundle_exec_thin restart
        ;;
  *)
        echo "Usage: $SCRIPT_NAME {start|stop|restart}" >&2
        exit 3
        ;;
esac

:

Saw your post about the bundler conflicts. This little script is fantastic. Thanks for sharing!!