DevUp!

Instead of installing and configuring local PostgreSQL, Redis and other external services, describe development dependencies with docker-compose. It is not required to remember any fancy command to start docker. Just start developing your app. Rails is a first-class citizen, but could be used without ruby.

1. bundle add aasm --group=development,test
2. Describe external services inside docker-compose.devup.yml
3. devup up
4. Confugure app to use ENV

• Docker (>= 19.03.8)
• Docker Compose (>= 1.25.5)

Create a docker-compose.devup.yml with app dependencies like:

version: "3"

services:
  postgres:
    image: postgres:10-alpine
    ports:
      - "5432"

Add DevUp! to your Gemfile

gem "devup", group: [:development, :test]

# To prevent devup boot every time, you can require "devup/env" only:
# gem "devup", group: [:development, :test], require: "devup/env"

and

$ bundle install

Update your database.yml to use ENV:

default: &default
  adapter: postgresql
  encoding: unicode
  host: <%= ENV.fetch("POSTGRES_HOST") %>
  port: <%= ENV.fetch("POSTGRES_PORT") %>
  username: postgres
  password:

development:
  <<: *default
  database: development

test:
  <<: *default
  database: test

You are ready to use rails with PostgreSQL configured

$ RAILS_ENV=test bundle exec rake db:create
DevUp! INFO starting up...
DevUp! INFO up

$ Created database 'test'

ENV vars from .env.services are loaded with dotenv automatically.

require "devup"
require "sequel"

DB = Sequel.connect(adapter: "postgres", host: ENV.fetch("POSTGRES_HOST"), port: ENV.fetch("POSTGRES_PORT"), database: "blog", user: 'postgres')

Install DevUp!

$ gem install devup

Start up services

$ devup up
DevUp! INFO starting up...
DevUp! INFO up

$ cat .env.services
export POSTGRES_HOST=0.0.0.0
export POSTGRES_PORT=32944
export POSTGRES_PORT_5432=32944
export MEMCACHED_HOST=0.0.0.0
export MEMCACHED_PORT=32943
...

Use your favourite dotenv extension to load vars from .env.services (node-dotenv, python-dotenv, phpdotenv, ...)

Or load ENV vars manually

$ source .env.services

Now you can run app

If you don't want devup to setup your dev services, you can disable it by using DEVUP_ENABLED=false. Just add it to .env.test.local file.

If you want to switch some service from DevUp! to another, you can override ENV in a local dotenv configs:

• .env.local
• .env.development.local
• .env.test.local

Just put to your .env.local:

export POSTGRES_HOST=0.0.0.0
export POSTGRES_PORT=5432

Just put to your .env.test or .env.development something like:

DATABASE_URL=postgres://postgres@$POSTGRES_HOST:$POSTGRES_PORT/test_db

$ export DEVUP_LOG_LEVEL=debug
$ devup up

After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

Bug reports and pull requests are welcome on GitHub at https://github.com/sergio-fry/devup. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the code of conduct.

The gem is available as open source under the terms of the MIT License.

Everyone interacting in the Devup project's codebases, issue trackers, chat rooms and mailing lists is expected to follow the code of conduct.