compile-time-env

A Heroku Buildpack to make Config Vars available during Slug compilation.

How to use it

Create a .compile-time-env file in the root of your App/repository. Add Config Var names you want to export (one per line):

$ cat .compile-time-env
SOME_ENV_VAR
# lines starting with # are considered comments, and will be skipped
ANOTHER_VAR

Add this Buildpack as the first Buildpack in your App. Or, at least before other Buildpacks that need the Config Vars.

$ heroku buildpacks:add --index=1 stevenharman/compile-time-env --app=<YOUR-APP-NAME>

On the next deploy the Config Vars specified in the .compile-time-env file will be available in the Slug compilation phase.

License

This work is licensed under MIT License.

Copyright (c) 2022 Steven Harman