Render heroku-app-builder documentation

Hi, is there documentation on setting up a Go app on Render using a Dockerfile?

I tried to setup an app with the Render Heroku-app-builder but could not find any information on the contents of and relationship between the /render and /app directory in the built container. The render heroku-app-builder at Package heroku-app-builder · GitHub has a link to https://github.com/renderinc/heroku-build but the repository is not available for viewing.

Is the code of the build pack closed source? If so, how do I figure out the correct Procfile commands to run my Go app? Thanks.

Chatting with @ansoni via Chat.

John B

Thanks @John_B

For any else finding this, a .render-buildpacks.json file needs to be created in the root for the heroku buildpack docker image to compile your language.

My .render-buildpacks.json file for Golang is like below:

{
    "buildpacks": [
      "heroku/go"
    ]
  }

Go 1.19 isn’t recognized at the moment so your go module may need to be downgraded to 1.18