Containerize application

[JuanVqz]

Context

• See doc/QUICK_START.md for more guidance

What we did

• Started the process of containerizing the application (since we cannot run older versions of Ruby locally)
• We were able to get the containers built and up

Next steps

• We were not yet able to run the specs - that is the next step

[JuanVqz]

we just skipped GitHub-sourced gems because they do not exist or were moved to another source.

• We were able to finish the bundle install with those commented out.
• To run the tests you might need to add them back and get them to work (no effort was put into doing that yet)

[JuanVqz]

I'd say do what is easier: remove the JS dependency or make it work here is the last error we get after the app was setup.

root@ae69522a8126:/app# bundle exec rake db:create:all
require 'rails/all'... 0.330s
Bundler.require... rake aborted!
Bundler::GemRequireError: There was an error while trying to load the gem 'autoprefixer-rails'.
Gem Load Error is: Could not find a JavaScript runtime. See https://github.com/sstephenson/execjs for a list of available runtimes.
Backtrace for gem load error is:
/usr/local/bundle/gems/execjs-2.4.0/lib/execjs/runtimes.rb:45:in `autodetect'
/usr/local/bundle/gems/execjs-2.4.0/lib/execjs.rb:5:in `<module:ExecJS>'

[fbuys]

Might need to add node and install node dependencies.
Not sure if it is necessary to run specs.