fishpercolator / docker-rails-new

Simple Docker image for bootstrapping a new Rails dev env in Docker

rails-new

A Docker container for bootstrapping a Docker Rails development environment

Quickstart

docker run -ti -u $(id -u) -v $(pwd):/work fishpercolator/rails-new $appname

Or, if you plan to use this a lot, make an alias:

alias rails-new='docker run -ti -u $(id -u) -v $(pwd):/work fishpercolator/rails-new'
rails-new $appname

After the environment has been bootstrapped:

cd $appname
docker-compose build
vim Gemfile # add your favourite gems
docker-compose run web bundle
docker-compose run web rake db:create
docker-compose up

And lo, your new application should be ready to go at http://localhost:3000.

What this does

1. It runs 'rails new' with your app name and any arguments you provide.
2. It adds a Dockerfile and docker-compose.yml to the directory for building out the dev environment. The Dockerfile includes a user 'rails' with the same uid as your host user so fails generated by Rails will have the right ownership.
3. It configures the development and test databases to use the provided postgres container.
4. It adds puma, therubyracer and rails_12factor to the Gemfile and configures puma with a config/puma.rb

Questions, comments

On Github: https://github.com/fishpercolator/docker-rails-new