ActiveRecord from Examples

An example project that shows a cool trick everyone should be using...

TD;RL

Clone and run it!

git clone https://github.com/vovimayhem/activerecord-from-example.git \
  && cd activerecord-from-example \
  && docker-compose up -d web

The service should be ready in a couple of minutes at http://localhost:3000

Then follow the onscreen instructions :)

Ruby Version

This project currently uses MRI Ruby 2.3.3

System dependencies

This project is developed using Docker, and you can find exactly which system dependencies are present used and how they are installed can be found in the development Dockerfile:

• Debian build tools (which come bundled in the Ruby Docker image)
• NodeJS (7.3.0) for asset compiling

Configuration

Being a 12-factor dockerized app, most of the configuration is done via environment variables defined in the project's Compose file (including DATABASE_URL and REDIS_URL), which will be injected into the containers by Docker Compose, and will also interpolate variables defined in the .env dotenv file. An example dotenv file is available at the project's root for you to copy and update at will.

Database creation / initialization

Using Docker Compose, the database initialization is done automatically by the development entrypoint script when running any rails/hutch/sidekiq process containers for the first time (it won't run if launching bash in a container)

If your'e not using Docker Compose, the normal rails commands still apply.

Services

• Postgres as the main database
• Rails web service