gottfrois

defmodule Rabbit.ConnectionPool do
  use Supervisor
  
  def start_link do
    Supervisor.start_link(__MODULE__, [])
  end
  
  def init(_) do
    pool_options = [
      {:name, {:local, :rabbit_connection_pool}},

gottfrois

defmodule Rabbit.ConnectionWorker do
  use Connection
  
  def start_link(opts) do
    Connection.start_link(__MODULE__, opts)
  end
  
  def init(opts) do
    state = %{opts: opts, conn: nil}
    {:connect, nil, state}

gottfrois

defmodule Rabbit do
  use Supervisor
  
  def start_link do
    Supervisor.start_link(__MODULE__, [])
  end
  
  def init(_opts) do
    children = [
      worker(Rabbit.ConnectionPool, []),

gottfrois

# foo/lib/foo.rb
require 'dry/system'
require 'foo/version'

module Foo
  Dry::System.register_provider(
    :foo,
    boot_path: Pathname(__dir__).join('foo/components').realpath
  )
end

gottfrois

FROM ruby:2.5.1-alpine3.7

WORKDIR /home/app

RUN apk add --update --no-cache \
   build-base \
   libxml2-dev \
   libxslt-dev \
   nodejs \
   tzdata

gottfrois

source 'https://rubygems.org'
git_source(:github) { |repo| "https://github.com/#{repo}.git" }

ruby '2.5.1'

gem 'rails', '~> 5.2.0'
gem 'puma', '~> 3.11'
gem 'sass-rails', '~> 5.0'

group :development, :test do

gottfrois

######################
# Stage: ruby
FROM ruby:2.5.1-alpine3.7 as ruby
LABEL description="Base ruby image used by other stages"

gottfrois

######################
# Stage: bundler
FROM ruby as bundler
LABEL description="Install and cache gems for all environments"

WORKDIR /home/app

# Copy the Gemfile and Gemfile.lock
COPY Gemfile* /home/app/

gottfrois

###############################
# Stage runner
FROM ruby as runner
LABEL description="Builds an image ready to be run"

# Install runtime deps and create non-root user.
#
# If you need to install specific libraries for test environment
# please use a virtual pkg holder you can easily remove on the
# `release` stage.

gottfrois

###############################
# Stage compiler
FROM runner as compiler
LABEL description="Builds a compiler image used to compile assets"

# Copy cached compiled assets to avoid re-compiling them
# We use latest compiler image to get already compiled assets
# and save lots of time on assets compilation for this new image
COPY --chown=app:app --from=my-app:compiler /home/app/public /home/app/public
COPY --chown=app:app --from=my-app:compiler /home/app/tmp /home/app/tmp