Rails Base Image Builder

This repository is the base image for all base image that is used in the builder stage of all of our rails apps.

Update gems

To update the gems in this core image, great care must be taken. Once the gemfile has been update, the lock file can be updated with a simple helper script. There are many ways of achieving this, but the recommended way is:

docker run -it -v "$(pwd)":/app -v /usr/local/bundle:/usr/local/bundle ruby:2.7.5 sh -c "apt-get update; apt-get install -y cmake build-essential; cd /app; gem install bundler:2.1; bundle update; bundle install;"

Once both the Gemfile and Gemfile.lock files are both updated, a commit can be created to force a new update.