Cloud Native Buildpack Shim

This is a Cloud Native Buildpack that acts as a shim for Heroku Buildpacks.

Usage

This shim can be used with any buildpack in the Heroku Buildpack Registry by specifying a URL in the form:

https://cnb-shim.herokuapp.com/v1/<namespace>/<name>

Example: Elixir

$ pack build elixir-app --buildpack https://cnb-shim.herokuapp.com/v1/hashnuke/elixir --builder heroku/buildpacks:18

For a complete list of available buildpacks run the following command from the Heroku CLI:

$ heroku buildpacks:search

Applying the Shim Manually

To use the shim manually, install the target buildpack:

$ sbin/install "path/to/buildpack.toml" "https://example.com/buildpack.tgz"

Then run this buildpack.

Example: Elixir

To use this shim with the hashnuke/elixir buildpack, install pack CLI and run:

$ cd elixir-cnb

$ curl -L https://github.com/heroku/cnb-shim/releases/download/v0.1/cnb-shim-v0.1.tgz | tar xz

$ cat > buildpack.toml << TOML
api = "0.2"

[buildpack]
id = "hashnuke.elixir"
version = "0.1"
name = "Elixir"

[[stacks]]
id = "heroku-18"
TOML

$ sbin/install buildpack.toml https://buildpack-registry.s3.amazonaws.com/buildpacks/hashnuke/elixir.tgz

$ cd ~/my-elixir-app/

$ pack build elixir-app --builder heroku/buildpacks --buildpack ~/path/to/elixir-cnb

License

MIT