Cloud Foundry buildpack: Erlang
This is a Cloud Foundry buildpack for Erlang apps. It uses Rebar.
It was adapted from a Heroku Buildpack with just a couple things changed to be CF compatible.
Select an Erlang version
The Erlang/OTP release version that will be used to build and run your application is now sourced from a dotfile called
.preferred_otp_version. It needs to be the branch or tag name from the http://github.com/erlang/otp repository, and further, needs to be one of the versions that precompiled binaries are available for.
Currently supported OTP versions:
- master (R17B pre)
- master-pu (R16B pre)
To select the version for your app:
$ echo OTP_R15B01 > .preferred_otp_version $ git commit -m "Select R15B01 as preferred OTP version" .preferred_otp_version
Create a Procfile for CF to run
Rebar projects must be run with the appliaation name, so it must be defined in a Procfile
$ echo "web: erl -pa ebin deps/*/ebin -noshell -s <app name>" > Procfile $ git commit -m "Added Procfile" Procfile
Build your CF App
$ cf push <app name> -b https://github.com/spiegela/cf-buildpack-erlang
You may need to write a new commit and push if your code was already up to date.