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Heroku Cloud Native Buildpack: Procfile

Cloud Native Buildpacks Registry: heroku/procfile CI on Github Actions: heroku/procfile

heroku/procfile is the Heroku Cloud Native Buildpack for applications that use a Procfile to declare process types. It replicates the behavior of Procfile from builds on the Heroku Platform.

Important

This is a Cloud Native Buildpack, and is a component of the Heroku Cloud Native Buildpacks project, which is in preview.

Usage

Note

Before getting started, ensure you have the pack CLI installed. Installation instructions are available here.

To build an application codebase with a Procfile into a production image:

$ cd ~/workdir/sample-procfile-app
$ pack build sample-app --builder heroku/builder:24

Then run the image:

docker run --rm -it -e "PORT=8080" -p 8080:8080 sample-app

Application Requirements

This buildpack requires a properly formatted Procfile to exist in the root project directory.

Configuration

You may configure which process types and commands are included in a build result like this:

# Example Procfile
web: bundle exec rails server -p $PORT
worker: bundle exec rake jobs:work

Contributing

Issues and pull requests are welcome. See our contributing guidelines if you would like to help.