laserchicken / rails6-docker-starter

Rails 6 docker starter

Rails 6 docker starter

Official Docker Rails sample application page https://docs.docker.com/samples/rails/ is outdated, so I created my own quickstart guide.

Setup

Copy these files (except README) into your new empty project directory. Generate your app with rails new, for example:

docker-compose run --no-deps web rails new . -T --webpack=react --force --database=postgresql

Once you got a new Gemfile you need to rebuild the image:

docker-compose build

Replace the contents of config/database.yml with the following:

default: &default
  adapter: postgresql
  encoding: unicode
  host: db
  username: postgres
  password: password
  pool: 5

development:
  <<: *default
  database: app_development

test:
  <<: *default
  database: app_test

Start it:

docker-compose up

Create dbs:

docker exec <web_container> rails db:create