Environment variable build pack

This is a Cloud Native Buildpack that adds support for configuring runtime environment variables.

Usage

Any environment var specified at build time starting with RUNTIME_ENVVAR will be managed.

Example:

• RUNTIME_ENVVAR_RELEASE_TAG at runtime becomes RELEASE_TAG

Local build

$ pack build \
    --builder heroku/builder:24 \
    --buildpack envvar-buildpack \
    --path my-project-path \
    --buildpack envvar-buildpack \
    example-image