How to reference environmental variables inside an upstart installed launch file?
I have successfully managed to install a launch file but upon rebooting found that none of the environmental variables referenced in the launch file are found. Granted, the launch files are guilty of liberal usage of $(optenv VARIABLE default) and as such many things are taking the default value. This now makes sense because, as I understand it, services run with most of the environmental variables stripped away. However I'd really like to avoid simply hard code the information into the launch files because the robot's hardware configuration is saved in these variables and this one launch file has to be installed on several different types of units.
I saw that for normal linux services the work around is to source an additional file inside the service file but I even find where robot_upstart installs the newly created service, which I confusingly called ros as well. I didn't see it /etc/default or /etc/init.d . My best guess was to source the ".robotrc" in the devel/setup.bash and include it with --setup option?
Thanks
