Node.js Yarn Cloud Native Buildpack

This buildpack builds on top of the existing Node.js Engine Cloud Native Buildpack. It runs subsequent scripts after Node is install.

• Run automatically
  • yarn install
• Run when configured in package.json
  • yarn build or yarn heroku-postbuild

Usage

This buildpack is meant to be used with heroku/nodejs-engine version 0.7.3.

$ pack build --buildpack heroku/nodejs-engine@0.7.3 --buildpack fagiani/nodejs-yarn myapp

Define a custom path for yarn (optional)

You can optionally create a yarn.lock file in the root directory with a line like this:

# yarn_path:public/my-custom-path

Make sure you place the actual package.json and yarn.lock in that path

Contributing

1. Open a pull request.
2. Make update to CHANGELOG.md under master with a description (PR title is fine) of the change, the PR number and link to PR.
3. Let the tests run on CI. When tests pass and PR is approved, the branch is ready to be merged.
4. Merge branch to master.

Release

Note: if you're not a contributor to this project, a contributor will have to make the release for you.

1. Create a new branch (ie. 1.14.2-release).
2. Update the version in the buildpack.toml.
3. Move the changes from master to a new header with the version and date (ie. 1.14.2 (2020-02-30)).
4. Open a pull request.
5. Let the tests run on CI. When tests pass and PR is approved, the branch is ready to be merged.
6. Merge branch to master.
7. Pull down master to local machine.
8. Tag the current master with the version. (git tag v1.14.2)
9. Push up to GitHub. (git push origin master --tags) CI will run the suite and create a new release on successful run.

Glossary

• buildpacks: provide framework and a runtime for source code. Read more here.
• OCI image: OCI (Open Container Initiative) is a project to create open sourced standards for OS-level virtualization, most importantly in Linux containers.