dockerfile

A Dockerfile we can use as a base for our Rails workshops.

(Still validating the idea).

Updating the Dockerfile

• To update Ruby, update the base image
• To update Rails, update the gem install -v *.*.* rails invocation
• To force the image to rebuild / bust the docker cache for any other reason, increment the number in dockerfile-version

The image will rebuild whenever we push to this GitHub repository.

Using the image

Open irb:

docker run --rm -it railsbridgenyc/rails irb

Generate a new Rails app:

docker run --rm -it -v ${PWD}:/workdir railsbridgenyc/rails rails new testo --database=postgresql

With docker-compose

TODO: add example