by Campus-Labs-Marketing


Pathing Buildpack

Forked buildpack to rewrite specific paths when the app is deployed.

Repository Origins

This buildpack was originally designed to run Go programs on Heroku. The idea is that you cross-compile your Go program for Linux and then push you binary to Heroku using Null Buildpack. Additionally I like to use the Platform Deployment API to avoid having to push my (often times large) repo to Heroku.

Heroku buildpacks take a base Linux server and prepare it for your application. For example, if you are deploying a Ruby app, the Ruby Buildpack will install Ruby, Bundler, Node.js, and other things. The Ruby Buildpack will also run scripts when you deploy your app; for example: installing dependencies and compiling css/js assets. Sometimes you don't need any of that and you simply wish to have a bare Linux install. Since the Null Buildpack doesn't do anything, it is very fast when compared to other buildpacks!

Null Buildpack is also a great starting place for developing your own buildpack.


Create a directory for our Heroku App:

$ mkdir app && cd app

Create a simple binary to run on our Heroku App:

$ echo -e "#\!/usr/bin/env bash\n echo hi" > ./test
$ echo -e "test: ./test" > Procfile
$ chmod +x ./test
$ ./test

Create an app with the Null Buildpack

$ git init; git add .; git commit -am 'init'
$ heroku create --buildpack
$ git push heroku master

Run the program:

$ heroku run test
Running `test` attached to terminal... up, run.8663