A heroku buildpack for setting the ssh private key as part of the application build. It's meant to be used with heroku-buildpack-multi, before other buildpacks which require the key to be present, like installing private repositories from
Upload the private key to heroku.
heroku config:set SSH_KEY=$(cat ~/.ssh/id_rsa)
.buildpacks file (used by
heroku-buildpack-multi) which contains this and the default python buildpack.
Now as long as the public key is present on gitlab and the user has the correct permissions, it's possible to install from private