I cant configure bundler using docker

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It is quite common to make some bundle settings via environment variable and in my specific case I want to access a private gem via github where I need access by a secret key

In my local environment and also in heroku I just need to set the BUNDLE_GITHUB__COM environment variable and that works fine

At the end of this bundler doc have an explanation about this variable use Bundler: bundle config
Heroku also has documentation on this Bundler Configuration | Heroku Dev Center

In the case of docker, the ghcr.io/renderinc/heroku-app-builder:heroku-20 image is already ready and I don’t have the possibility to set this variable before it executes the bundle install

Do you have any solution for this?

2

Hi there,

Thanks for reaching out.

Docker builds on Render don’t have access to the environment variables, you may need to refer to this documentation to set config at build time: Using Secrets with Docker.

Alternatively, if your project doesn’t require any special libraries installed with Docker, it maybe worth trying a Ruby Native Environment to get up and running.

Kind regards

Alan

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