This is a template for using heroku-openresty-buildpack. Sorry for the mouthful of a name, but at least it's definitive.
Usage:
git clone https://github.com/geoffleyland/heroku-buildpack-openresty-template.git
cd heroku-buildpack-openresty-template
heroku apps:create hbo-template
heroku buildpacks:set https://github.com/geoffleyland/heroku-buildpack-openresty
git push heroku master
(you'll need to change the app name in heroku app:create hbo-template
since I'm using hbo-template already)
It'll spend quite a while building LuaJIT, Openresty and LuaRocks, but then, with a bit of luck, you should be able to visit https://whateveryoucalledyourapp.herokuapp.com and see a word of your choice spelt backwards!
(At the moment, there's a version of this running at https://hbo-template.herokuapp.com)
What's there is just enough to show an index.html and have a little API.
You can persuade it to run locally as well, but you'll need to install all the parts, and have them in your path. I'll detail that later.