Mixed Mode RVM giving error when used in init script - rvm

Question

I've installed RVM in Mixed Mode and have Phusion Passenger running in stand alone mode.
I've found this init script to start my Phusion Passenger standalone server on startup: http://memcloud.com/note/show/167
Modifying only the prescribed values, it was giving me the following error, but would still run
-su: /home/myuser/.rvm/bin/rvm: No such file or directory
I ran which rvm in myuser and found out that RVM is in /usr/local/rvm/bin/rvm. So I updated the RVM variable to reflect that, and changed RVM="$USER_HOME/.rvm/bin/rvm" to RVM="/usr/local/rvm/bin/rv". Now it's giving me the following message, but it still runs.
RVM is not a function, selecting rubies with 'rvm use ...' will not work.
Not really sure if it's a problem if the system is running, but I'd just like to be sure.

Answer 1

I would say this script is wrong, you should use something more like this:
#!/usr/bin/env bash
### BEGIN INIT INFO
# Provides: my-app passenger in standalone
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Start/stop my-app web site
### END INIT INFO
# BEGIN MINIMAL CHANGES
USER=www-data
USER_HOME=/var/www
APP_PATH=/var/www/my-app/current
GEM_SET=ruby-1.8.7-p330#my-app
ADDRESS=127.0.0.1
PORT=3000
ENVIRONMENT=production
# END MINIMAL CHANGES
RVM="/usr/local/rvm/bin/rvm"
PASSENGER="$USER_HOME/.rvm/gems/$GEM_SET/bin/passenger"
PASSENGER="cd $APP_PATH; $RVM $GEM_SET do $PASSENGER"
CMD_START="$PASSENGER start -a $ADDRESS -p $PORT -e $ENVIRONMENT -d"
CMD_STOP="$PASSENGER stop -p $PORT"
. /lib/lsb/init-functions
case "$1" in
start)
echo "Starting myapp passenger"
echo $CMD_START
su - $USER -c "$CMD_START"
;;
stop)
echo "Stopping myapp passenger"
echo $CMD_STOP
su - $USER -c "$CMD_STOP"
;;
*)
echo "Usage: $0 start|stop" >&2
exit 3
;;
esac
you could also replace GEM_SET=. to make rvm use ruby stored in .rvmrc but this requires that $USER trusted that .rvmrc ... which could be also done in this script with:
su - $USER -c "rvm rvmrc trust $APP_PATH"
called as first line in start)