├── .dockerignore ├── .gitignore ├── Dockerfile ├── Gemfile ├── Gemfile.lock ├── README.md ├── Rakefile ├── app ├── assets │ ├── images │ │ └── .keep │ ├── javascripts │ │ └── application.js │ └── stylesheets │ │ └── application.css ├── controllers │ ├── application_controller.rb │ └── concerns │ │ └── .keep ├── helpers │ └── application_helper.rb ├── mailers │ └── .keep ├── models │ ├── .keep │ └── concerns │ │ └── .keep └── views │ └── layouts │ └── application.html.erb ├── bin ├── bundle ├── rails ├── rake └── setup ├── config.ru ├── config ├── application.rb ├── boot.rb ├── containers │ ├── Dockerfile-nginx │ ├── app_cmd.sh │ ├── nginx.conf │ └── unicorn.rb ├── database.yml ├── environment.rb ├── environments │ ├── development.rb │ ├── production.rb │ └── test.rb ├── initializers │ ├── assets.rb │ ├── backtrace_silencers.rb │ ├── cookies_serializer.rb │ ├── filter_parameter_logging.rb │ ├── inflections.rb │ ├── mime_types.rb │ ├── session_store.rb │ └── wrap_parameters.rb ├── locales │ └── en.yml ├── routes.rb └── secrets.yml ├── db └── seeds.rb ├── docker-compose.override.yml ├── docker-compose.yml ├── lib ├── assets │ └── .keep └── tasks │ └── .keep ├── log └── .keep ├── public ├── 404.html ├── 422.html ├── 500.html ├── favicon.ico └── robots.txt └── vendor └── assets ├── javascripts └── .keep └── stylesheets └── .keep /.dockerignore: -------------------------------------------------------------------------------- 1 | .git 2 | .env 3 | .dockerignore 4 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # See https://help.github.com/articles/ignoring-files for more about ignoring files. 2 | # 3 | # If you find yourself ignoring temporary files generated by your text editor 4 | # or operating system, you probably want to add a global ignore instead: 5 | # git config --global core.excludesfile '~/.gitignore_global' 6 | 7 | .env 8 | 9 | # Ignore bundler config. 10 | /.bundle 11 | 12 | # Ignore all logfiles and tempfiles. 13 | /log/* 14 | !/log/.keep 15 | /tmp 16 | -------------------------------------------------------------------------------- /Dockerfile: -------------------------------------------------------------------------------- 1 | # Base our image on an official, minimal image of our preferred Ruby 2 | FROM ruby:2.2.3-slim 3 | 4 | # Install essential Linux packages 5 | RUN apt-get update -qq && apt-get install -y build-essential libpq-dev postgresql-client 6 | 7 | # Define where our application will live inside the image 8 | ENV RAILS_ROOT /var/www/docker_example 9 | 10 | # Create application home. App server will need the pids dir so just create everything in one shot 11 | RUN mkdir -p $RAILS_ROOT/tmp/pids 12 | 13 | # Set our working directory inside the image 14 | WORKDIR $RAILS_ROOT 15 | 16 | # Use the Gemfiles as Docker cache markers. Always bundle before copying app src. 17 | # (the src likely changed and we don't want to invalidate Docker's cache too early) 18 | # http://ilikestuffblog.com/2014/01/06/how-to-skip-bundle-install-when-deploying-a-rails-app-to-docker/ 19 | COPY Gemfile Gemfile 20 | 21 | COPY Gemfile.lock Gemfile.lock 22 | 23 | # Prevent bundler warnings; ensure that the bundler version executed is >= that which created Gemfile.lock 24 | RUN gem install bundler 25 | 26 | # Finish establishing our Ruby enviornment 27 | RUN bundle install 28 | 29 | # Copy the Rails application into place 30 | COPY . . 31 | 32 | # Define the script we want run once the container boots 33 | # Use the "exec" form of CMD so our script shuts down gracefully on SIGTERM (i.e. `docker stop`) 34 | CMD [ "config/containers/app_cmd.sh" ] 35 | -------------------------------------------------------------------------------- /Gemfile: -------------------------------------------------------------------------------- 1 | source 'https://rubygems.org' 2 | 3 | 4 | # Bundle edge Rails instead: gem 'rails', github: 'rails/rails' 5 | gem 'rails', '4.2.5.1' 6 | # Use postgresql as the database for Active Record 7 | gem 'pg', '~> 0.15' 8 | # Use SCSS for stylesheets 9 | gem 'sass-rails', '~> 5.0' 10 | # Use Uglifier as compressor for JavaScript assets 11 | gem 'uglifier', '>= 1.3.0' 12 | # Use CoffeeScript for .coffee assets and views 13 | gem 'coffee-rails', '~> 4.1.0' 14 | # See https://github.com/rails/execjs#readme for more supported runtimes 15 | gem 'therubyracer', platforms: :ruby 16 | # Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder 17 | gem 'jbuilder', '~> 2.0' 18 | # Use Unicorn as the app server 19 | gem 'unicorn' 20 | 21 | group :development do 22 | gem 'spring' 23 | end 24 | 25 | -------------------------------------------------------------------------------- /Gemfile.lock: -------------------------------------------------------------------------------- 1 | GEM 2 | remote: https://rubygems.org/ 3 | specs: 4 | actionmailer (4.2.5.1) 5 | actionpack (= 4.2.5.1) 6 | actionview (= 4.2.5.1) 7 | activejob (= 4.2.5.1) 8 | mail (~> 2.5, >= 2.5.4) 9 | rails-dom-testing (~> 1.0, >= 1.0.5) 10 | actionpack (4.2.5.1) 11 | actionview (= 4.2.5.1) 12 | activesupport (= 4.2.5.1) 13 | rack (~> 1.6) 14 | rack-test (~> 0.6.2) 15 | rails-dom-testing (~> 1.0, >= 1.0.5) 16 | rails-html-sanitizer (~> 1.0, >= 1.0.2) 17 | actionview (4.2.5.1) 18 | activesupport (= 4.2.5.1) 19 | builder (~> 3.1) 20 | erubis (~> 2.7.0) 21 | rails-dom-testing (~> 1.0, >= 1.0.5) 22 | rails-html-sanitizer (~> 1.0, >= 1.0.2) 23 | activejob (4.2.5.1) 24 | activesupport (= 4.2.5.1) 25 | globalid (>= 0.3.0) 26 | activemodel (4.2.5.1) 27 | activesupport (= 4.2.5.1) 28 | builder (~> 3.1) 29 | activerecord (4.2.5.1) 30 | activemodel (= 4.2.5.1) 31 | activesupport (= 4.2.5.1) 32 | arel (~> 6.0) 33 | activesupport (4.2.5.1) 34 | i18n (~> 0.7) 35 | json (~> 1.7, >= 1.7.7) 36 | minitest (~> 5.1) 37 | thread_safe (~> 0.3, >= 0.3.4) 38 | tzinfo (~> 1.1) 39 | arel (6.0.3) 40 | builder (3.2.2) 41 | coffee-rails (4.1.1) 42 | coffee-script (>= 2.2.0) 43 | railties (>= 4.0.0, < 5.1.x) 44 | coffee-script (2.4.1) 45 | coffee-script-source 46 | execjs 47 | coffee-script-source (1.10.0) 48 | concurrent-ruby (1.0.0) 49 | erubis (2.7.0) 50 | execjs (2.6.0) 51 | globalid (0.3.6) 52 | activesupport (>= 4.1.0) 53 | i18n (0.7.0) 54 | jbuilder (2.4.1) 55 | activesupport (>= 3.0.0, < 5.1) 56 | multi_json (~> 1.2) 57 | json (1.8.3) 58 | kgio (2.10.0) 59 | libv8 (3.16.14.13) 60 | loofah (2.0.3) 61 | nokogiri (>= 1.5.9) 62 | mail (2.6.3) 63 | mime-types (>= 1.16, < 3) 64 | mime-types (2.99) 65 | mini_portile2 (2.0.0) 66 | minitest (5.8.4) 67 | multi_json (1.11.2) 68 | nokogiri (1.6.7.2) 69 | mini_portile2 (~> 2.0.0.rc2) 70 | pg (0.18.4) 71 | rack (1.6.4) 72 | rack-test (0.6.3) 73 | rack (>= 1.0) 74 | rails (4.2.5.1) 75 | actionmailer (= 4.2.5.1) 76 | actionpack (= 4.2.5.1) 77 | actionview (= 4.2.5.1) 78 | activejob (= 4.2.5.1) 79 | activemodel (= 4.2.5.1) 80 | activerecord (= 4.2.5.1) 81 | activesupport (= 4.2.5.1) 82 | bundler (>= 1.3.0, < 2.0) 83 | railties (= 4.2.5.1) 84 | sprockets-rails 85 | rails-deprecated_sanitizer (1.0.3) 86 | activesupport (>= 4.2.0.alpha) 87 | rails-dom-testing (1.0.7) 88 | activesupport (>= 4.2.0.beta, < 5.0) 89 | nokogiri (~> 1.6.0) 90 | rails-deprecated_sanitizer (>= 1.0.1) 91 | rails-html-sanitizer (1.0.3) 92 | loofah (~> 2.0) 93 | railties (4.2.5.1) 94 | actionpack (= 4.2.5.1) 95 | activesupport (= 4.2.5.1) 96 | rake (>= 0.8.7) 97 | thor (>= 0.18.1, < 2.0) 98 | raindrops (0.15.0) 99 | rake (10.5.0) 100 | ref (2.0.0) 101 | sass (3.4.21) 102 | sass-rails (5.0.4) 103 | railties (>= 4.0.0, < 5.0) 104 | sass (~> 3.1) 105 | sprockets (>= 2.8, < 4.0) 106 | sprockets-rails (>= 2.0, < 4.0) 107 | tilt (>= 1.1, < 3) 108 | spring (1.6.3) 109 | sprockets (3.5.2) 110 | concurrent-ruby (~> 1.0) 111 | rack (> 1, < 3) 112 | sprockets-rails (3.0.1) 113 | actionpack (>= 4.0) 114 | activesupport (>= 4.0) 115 | sprockets (>= 3.0.0) 116 | therubyracer (0.12.2) 117 | libv8 (~> 3.16.14.0) 118 | ref 119 | thor (0.19.1) 120 | thread_safe (0.3.5) 121 | tilt (2.0.2) 122 | tzinfo (1.2.2) 123 | thread_safe (~> 0.1) 124 | uglifier (2.7.2) 125 | execjs (>= 0.3.0) 126 | json (>= 1.8.0) 127 | unicorn (5.0.1) 128 | kgio (~> 2.6) 129 | rack 130 | raindrops (~> 0.7) 131 | 132 | PLATFORMS 133 | ruby 134 | 135 | DEPENDENCIES 136 | coffee-rails (~> 4.1.0) 137 | jbuilder (~> 2.0) 138 | pg (~> 0.15) 139 | rails (= 4.2.5.1) 140 | sass-rails (~> 5.0) 141 | spring 142 | therubyracer 143 | uglifier (>= 1.3.0) 144 | unicorn 145 | 146 | BUNDLED WITH 147 | 1.11.2 148 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Docker Example App 2 | 3 | This is a bare-bones, dockerized [Ruby on Rails](http://rubyonrails.org) application that demonstrates the configuration outlined in the article ["Docker for an Existing Rails Application"](http://chrisstump.online/2016/02/20/docker-existing-rails-application/). You could use this code for a new Rails app that you want to use Docker with, or to easily follow along in the article. 4 | 5 | [![Book session on Codementor](https://cdn.codementor.io/badges/book_session_github.svg)](https://www.codementor.io/cstump?utm_source=github&utm_medium=button&utm_term=cstump&utm_campaign=github) if you need a hand dockerizing your Rails app. 6 | -------------------------------------------------------------------------------- /Rakefile: -------------------------------------------------------------------------------- 1 | # Add your own tasks in files placed in lib/tasks ending in .rake, 2 | # for example lib/tasks/capistrano.rake, and they will automatically be available to Rake. 3 | 4 | require File.expand_path('../config/application', __FILE__) 5 | 6 | Rails.application.load_tasks 7 | -------------------------------------------------------------------------------- /app/assets/images/.keep: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/cstump/docker_example/8125f3e08d0febdc59fabb08efce82cc2b29224f/app/assets/images/.keep -------------------------------------------------------------------------------- /app/assets/javascripts/application.js: -------------------------------------------------------------------------------- 1 | // This is a manifest file that'll be compiled into application.js, which will include all the files 2 | // listed below. 3 | // 4 | // Any JavaScript/Coffee file within this directory, lib/assets/javascripts, vendor/assets/javascripts, 5 | // or any plugin's vendor/assets/javascripts directory can be referenced here using a relative path. 6 | // 7 | // It's not advisable to add code directly here, but if you do, it'll appear at the bottom of the 8 | // compiled file. 9 | // 10 | // Read Sprockets README (https://github.com/rails/sprockets#sprockets-directives) for details 11 | // about supported directives. 12 | // 13 | //= require jquery 14 | //= require jquery_ujs 15 | //= require_tree . 16 | -------------------------------------------------------------------------------- /app/assets/stylesheets/application.css: -------------------------------------------------------------------------------- 1 | /* 2 | * This is a manifest file that'll be compiled into application.css, which will include all the files 3 | * listed below. 4 | * 5 | * Any CSS and SCSS file within this directory, lib/assets/stylesheets, vendor/assets/stylesheets, 6 | * or any plugin's vendor/assets/stylesheets directory can be referenced here using a relative path. 7 | * 8 | * You're free to add application-wide styles to this file and they'll appear at the bottom of the 9 | * compiled file so the styles you add here take precedence over styles defined in any styles 10 | * defined in the other CSS/SCSS files in this directory. It is generally better to create a new 11 | * file per style scope. 12 | * 13 | *= require_tree . 14 | *= require_self 15 | */ 16 | -------------------------------------------------------------------------------- /app/controllers/application_controller.rb: -------------------------------------------------------------------------------- 1 | class ApplicationController < ActionController::Base 2 | # Prevent CSRF attacks by raising an exception. 3 | # For APIs, you may want to use :null_session instead. 4 | protect_from_forgery with: :exception 5 | end 6 | -------------------------------------------------------------------------------- /app/controllers/concerns/.keep: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/cstump/docker_example/8125f3e08d0febdc59fabb08efce82cc2b29224f/app/controllers/concerns/.keep -------------------------------------------------------------------------------- /app/helpers/application_helper.rb: -------------------------------------------------------------------------------- 1 | module ApplicationHelper 2 | end 3 | -------------------------------------------------------------------------------- /app/mailers/.keep: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/cstump/docker_example/8125f3e08d0febdc59fabb08efce82cc2b29224f/app/mailers/.keep -------------------------------------------------------------------------------- /app/models/.keep: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/cstump/docker_example/8125f3e08d0febdc59fabb08efce82cc2b29224f/app/models/.keep -------------------------------------------------------------------------------- /app/models/concerns/.keep: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/cstump/docker_example/8125f3e08d0febdc59fabb08efce82cc2b29224f/app/models/concerns/.keep -------------------------------------------------------------------------------- /app/views/layouts/application.html.erb: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | DockerExample 5 | <%= stylesheet_link_tag 'application', media: 'all' %> 6 | <%= javascript_include_tag 'application' %> 7 | <%= csrf_meta_tags %> 8 | 9 | 10 | 11 | <%= yield %> 12 | 13 | 14 | 15 | -------------------------------------------------------------------------------- /bin/bundle: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env ruby 2 | ENV['BUNDLE_GEMFILE'] ||= File.expand_path('../../Gemfile', __FILE__) 3 | load Gem.bin_path('bundler', 'bundle') 4 | -------------------------------------------------------------------------------- /bin/rails: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env ruby 2 | APP_PATH = File.expand_path('../../config/application', __FILE__) 3 | require_relative '../config/boot' 4 | require 'rails/commands' 5 | -------------------------------------------------------------------------------- /bin/rake: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env ruby 2 | require_relative '../config/boot' 3 | require 'rake' 4 | Rake.application.run 5 | -------------------------------------------------------------------------------- /bin/setup: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env ruby 2 | require 'pathname' 3 | 4 | # path to your application root. 5 | APP_ROOT = Pathname.new File.expand_path('../../', __FILE__) 6 | 7 | Dir.chdir APP_ROOT do 8 | # This script is a starting point to setup your application. 9 | # Add necessary setup steps to this file: 10 | 11 | puts "== Installing dependencies ==" 12 | system "gem install bundler --conservative" 13 | system "bundle check || bundle install" 14 | 15 | # puts "\n== Copying sample files ==" 16 | # unless File.exist?("config/database.yml") 17 | # system "cp config/database.yml.sample config/database.yml" 18 | # end 19 | 20 | puts "\n== Preparing database ==" 21 | system "bin/rake db:setup" 22 | 23 | puts "\n== Removing old logs and tempfiles ==" 24 | system "rm -f log/*" 25 | system "rm -rf tmp/cache" 26 | 27 | puts "\n== Restarting application server ==" 28 | system "touch tmp/restart.txt" 29 | end 30 | -------------------------------------------------------------------------------- /config.ru: -------------------------------------------------------------------------------- 1 | # This file is used by Rack-based servers to start the application. 2 | 3 | require ::File.expand_path('../config/environment', __FILE__) 4 | run Rails.application 5 | -------------------------------------------------------------------------------- /config/application.rb: -------------------------------------------------------------------------------- 1 | require File.expand_path('../boot', __FILE__) 2 | 3 | require "rails" 4 | # Pick the frameworks you want: 5 | require "active_model/railtie" 6 | require "active_job/railtie" 7 | require "active_record/railtie" 8 | require "action_controller/railtie" 9 | require "action_mailer/railtie" 10 | require "action_view/railtie" 11 | require "sprockets/railtie" 12 | # require "rails/test_unit/railtie" 13 | 14 | # Require the gems listed in Gemfile, including any gems 15 | # you've limited to :test, :development, or :production. 16 | Bundler.require(*Rails.groups) 17 | 18 | module DockerExample 19 | class Application < Rails::Application 20 | # Settings in config/environments/* take precedence over those specified here. 21 | # Application configuration should go into files in config/initializers 22 | # -- all .rb files in that directory are automatically loaded. 23 | 24 | # Set Time.zone default to the specified zone and make Active Record auto-convert to this zone. 25 | # Run "rake -D time" for a list of tasks for finding time zone names. Default is UTC. 26 | # config.time_zone = 'Central Time (US & Canada)' 27 | 28 | # The default locale is :en and all translations from config/locales/*.rb,yml are auto loaded. 29 | # config.i18n.load_path += Dir[Rails.root.join('my', 'locales', '*.{rb,yml}').to_s] 30 | # config.i18n.default_locale = :de 31 | 32 | # Do not swallow errors in after_commit/after_rollback callbacks. 33 | config.active_record.raise_in_transactional_callbacks = true 34 | end 35 | end 36 | -------------------------------------------------------------------------------- /config/boot.rb: -------------------------------------------------------------------------------- 1 | ENV['BUNDLE_GEMFILE'] ||= File.expand_path('../../Gemfile', __FILE__) 2 | 3 | require 'bundler/setup' # Set up gems listed in the Gemfile. 4 | -------------------------------------------------------------------------------- /config/containers/Dockerfile-nginx: -------------------------------------------------------------------------------- 1 | # build from the official Nginx image 2 | FROM nginx 3 | 4 | # install essential Linux packages 5 | RUN apt-get update -qq && apt-get -y install apache2-utils 6 | 7 | # establish where Nginx should look for files 8 | ENV RAILS_ROOT /var/www/docker_example 9 | 10 | # Set our working directory inside the image 11 | WORKDIR $RAILS_ROOT 12 | 13 | # create log directory 14 | RUN mkdir log 15 | 16 | # copy over static assets 17 | COPY public public/ 18 | 19 | # copy our Nginx config template 20 | COPY config/containers/nginx.conf /tmp/docker_example.nginx 21 | 22 | # substitute variable references in the Nginx config template for real values from the environment 23 | # put the final config in its place 24 | RUN envsubst '$RAILS_ROOT' < /tmp/docker_example.nginx > /etc/nginx/conf.d/default.conf 25 | 26 | # Use the "exec" form of CMD so Nginx shuts down gracefully on SIGTERM (i.e. `docker stop`) 27 | CMD [ "nginx", "-g", "daemon off;" ] 28 | 29 | -------------------------------------------------------------------------------- /config/containers/app_cmd.sh: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env bash 2 | 3 | # Prefix `bundle` with `exec` so unicorn shuts down gracefully on SIGTERM (i.e. `docker stop`) 4 | exec bundle exec unicorn -c config/containers/unicorn.rb -E $RAILS_ENV; 5 | -------------------------------------------------------------------------------- /config/containers/nginx.conf: -------------------------------------------------------------------------------- 1 | # This is a template. Referenced variables (e.g. $RAILS_ROOT) need 2 | # to be rewritten with real values in order for this file to work. 3 | # To learn about all the directives used here, and more, see 4 | # http://nginx.org/en/docs/dirindex.html 5 | 6 | # define our application server 7 | upstream unicorn { 8 | server app:3000; 9 | } 10 | 11 | server { 12 | # define our domain; CHANGE ME 13 | server_name yourproductiondomain.com; 14 | 15 | # define the public application root 16 | root $RAILS_ROOT/public; 17 | index index.html; 18 | 19 | # define where Nginx should write its logs 20 | access_log $RAILS_ROOT/log/nginx.access.log; 21 | error_log $RAILS_ROOT/log/nginx.error.log; 22 | 23 | # deny requests for files that should never be accessed 24 | location ~ /\. { 25 | deny all; 26 | } 27 | 28 | location ~* ^.+\.(rb|log)$ { 29 | deny all; 30 | } 31 | 32 | # serve static (compiled) assets directly if they exist (for rails production) 33 | location ~ ^/(assets|images|javascripts|stylesheets|swfs|system)/ { 34 | try_files $uri @rails; 35 | 36 | access_log off; 37 | gzip_static on; # to serve pre-gzipped version 38 | 39 | expires max; 40 | add_header Cache-Control public; 41 | 42 | # Some browsers still send conditional-GET requests if there's a 43 | # Last-Modified header or an ETag header even if they haven't 44 | # reached the expiry date sent in the Expires header. 45 | add_header Last-Modified ""; 46 | add_header ETag ""; 47 | break; 48 | } 49 | 50 | # send non-static file requests to the app server 51 | location / { 52 | try_files $uri @rails; 53 | } 54 | 55 | location @rails { 56 | proxy_set_header X-Real-IP $remote_addr; 57 | proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; 58 | proxy_set_header Host $http_host; 59 | proxy_redirect off; 60 | proxy_pass http://unicorn; 61 | } 62 | } 63 | -------------------------------------------------------------------------------- /config/containers/unicorn.rb: -------------------------------------------------------------------------------- 1 | # Where our application lives. $RAILS_ROOT is defined in our Dockerfile. 2 | app_path = ENV['RAILS_ROOT'] 3 | 4 | # Set the server's working directory 5 | working_directory app_path 6 | 7 | # Define where Unicorn should write its PID file 8 | pid "#{app_path}/tmp/pids/unicorn.pid" 9 | 10 | # Bind Unicorn to the container's default route, at port 3000 11 | listen "0.0.0.0:3000" 12 | 13 | # Define where Unicorn should write its log files 14 | stderr_path "#{app_path}/log/unicorn.stderr.log" 15 | stdout_path "#{app_path}/log/unicorn.stdout.log" 16 | 17 | # Define the number of workers Unicorn should spin up. 18 | # A new Rails app just needs one. You would scale this 19 | # higher in the future once your app starts getting traffic. 20 | # See https://unicorn.bogomips.org/TUNING.html 21 | worker_processes 1 22 | 23 | # Make sure we use the correct Gemfile on restarts 24 | before_exec do |server| 25 | ENV['BUNDLE_GEMFILE'] = "#{app_path}/Gemfile" 26 | end 27 | 28 | # Speeds up your workers. 29 | # See https://unicorn.bogomips.org/TUNING.html 30 | preload_app true 31 | 32 | # 33 | # Below we define how our workers should be spun up. 34 | # See https://unicorn.bogomips.org/Unicorn/Configurator.html 35 | # 36 | 37 | before_fork do |server, worker| 38 | # the following is highly recomended for Rails + "preload_app true" 39 | # as there's no need for the master process to hold a connection 40 | if defined?(ActiveRecord::Base) 41 | ActiveRecord::Base.connection.disconnect! 42 | end 43 | 44 | # Before forking, kill the master process that belongs to the .oldbin PID. 45 | # This enables 0 downtime deploys. 46 | old_pid = "#{server.config[:pid]}.oldbin" 47 | if File.exists?(old_pid) && server.pid != old_pid 48 | begin 49 | Process.kill("QUIT", File.read(old_pid).to_i) 50 | rescue Errno::ENOENT, Errno::ESRCH 51 | # someone else did our job for us 52 | end 53 | end 54 | end 55 | 56 | after_fork do |server, worker| 57 | if defined?(ActiveRecord::Base) 58 | ActiveRecord::Base.establish_connection 59 | end 60 | end 61 | -------------------------------------------------------------------------------- /config/database.yml: -------------------------------------------------------------------------------- 1 | default: &default 2 | adapter: postgresql 3 | encoding: unicode 4 | host: db 5 | port: 5432 6 | username: postgres 7 | password: <%= ENV['POSTGRES_PASSWORD'] %> 8 | 9 | development: 10 | <<: *default 11 | database: docker_example_dev 12 | 13 | test: 14 | <<: *default 15 | database: docker_example_test 16 | 17 | # production: 18 | # <<: *default 19 | # database: your_production_db_name #CHANGE ME 20 | -------------------------------------------------------------------------------- /config/environment.rb: -------------------------------------------------------------------------------- 1 | # Load the Rails application. 2 | require File.expand_path('../application', __FILE__) 3 | 4 | # Initialize the Rails application. 5 | Rails.application.initialize! 6 | -------------------------------------------------------------------------------- /config/environments/development.rb: -------------------------------------------------------------------------------- 1 | Rails.application.configure do 2 | # Settings specified here will take precedence over those in config/application.rb. 3 | 4 | # In the development environment your application's code is reloaded on 5 | # every request. This slows down response time but is perfect for development 6 | # since you don't have to restart the web server when you make code changes. 7 | config.cache_classes = false 8 | 9 | # Do not eager load code on boot. 10 | config.eager_load = false 11 | 12 | # Show full error reports and disable caching. 13 | config.consider_all_requests_local = true 14 | config.action_controller.perform_caching = false 15 | 16 | # Don't care if the mailer can't send. 17 | config.action_mailer.raise_delivery_errors = false 18 | 19 | # Print deprecation notices to the Rails logger. 20 | config.active_support.deprecation = :log 21 | 22 | # Raise an error on page load if there are pending migrations. 23 | config.active_record.migration_error = :page_load 24 | 25 | # Debug mode disables concatenation and preprocessing of assets. 26 | # This option may cause significant delays in view rendering with a large 27 | # number of complex assets. 28 | config.assets.debug = true 29 | 30 | # Asset digests allow you to set far-future HTTP expiration dates on all assets, 31 | # yet still be able to expire them through the digest params. 32 | config.assets.digest = true 33 | 34 | # Adds additional error checking when serving assets at runtime. 35 | # Checks for improperly declared sprockets dependencies. 36 | # Raises helpful error messages. 37 | config.assets.raise_runtime_errors = true 38 | 39 | # Raises error for missing translations 40 | # config.action_view.raise_on_missing_translations = true 41 | end 42 | -------------------------------------------------------------------------------- /config/environments/production.rb: -------------------------------------------------------------------------------- 1 | Rails.application.configure do 2 | # Settings specified here will take precedence over those in config/application.rb. 3 | 4 | # Code is not reloaded between requests. 5 | config.cache_classes = true 6 | 7 | # Eager load code on boot. This eager loads most of Rails and 8 | # your application in memory, allowing both threaded web servers 9 | # and those relying on copy on write to perform better. 10 | # Rake tasks automatically ignore this option for performance. 11 | config.eager_load = true 12 | 13 | # Full error reports are disabled and caching is turned on. 14 | config.consider_all_requests_local = false 15 | config.action_controller.perform_caching = true 16 | 17 | # Enable Rack::Cache to put a simple HTTP cache in front of your application 18 | # Add `rack-cache` to your Gemfile before enabling this. 19 | # For large-scale production use, consider using a caching reverse proxy like 20 | # NGINX, varnish or squid. 21 | # config.action_dispatch.rack_cache = true 22 | 23 | # Disable serving static files from the `/public` folder by default since 24 | # Apache or NGINX already handles this. 25 | config.serve_static_files = ENV['RAILS_SERVE_STATIC_FILES'].present? 26 | 27 | # Compress JavaScripts and CSS. 28 | config.assets.js_compressor = :uglifier 29 | # config.assets.css_compressor = :sass 30 | 31 | # Do not fallback to assets pipeline if a precompiled asset is missed. 32 | config.assets.compile = false 33 | 34 | # Asset digests allow you to set far-future HTTP expiration dates on all assets, 35 | # yet still be able to expire them through the digest params. 36 | config.assets.digest = true 37 | 38 | # `config.assets.precompile` and `config.assets.version` have moved to config/initializers/assets.rb 39 | 40 | # Specifies the header that your server uses for sending files. 41 | # config.action_dispatch.x_sendfile_header = 'X-Sendfile' # for Apache 42 | # config.action_dispatch.x_sendfile_header = 'X-Accel-Redirect' # for NGINX 43 | 44 | # Force all access to the app over SSL, use Strict-Transport-Security, and use secure cookies. 45 | # config.force_ssl = true 46 | 47 | # Use the lowest log level to ensure availability of diagnostic information 48 | # when problems arise. 49 | config.log_level = :debug 50 | 51 | # Prepend all log lines with the following tags. 52 | # config.log_tags = [ :subdomain, :uuid ] 53 | 54 | # Use a different logger for distributed setups. 55 | # config.logger = ActiveSupport::TaggedLogging.new(SyslogLogger.new) 56 | 57 | # Use a different cache store in production. 58 | # config.cache_store = :mem_cache_store 59 | 60 | # Enable serving of images, stylesheets, and JavaScripts from an asset server. 61 | # config.action_controller.asset_host = 'http://assets.example.com' 62 | 63 | # Ignore bad email addresses and do not raise email delivery errors. 64 | # Set this to true and configure the email server for immediate delivery to raise delivery errors. 65 | # config.action_mailer.raise_delivery_errors = false 66 | 67 | # Enable locale fallbacks for I18n (makes lookups for any locale fall back to 68 | # the I18n.default_locale when a translation cannot be found). 69 | config.i18n.fallbacks = true 70 | 71 | # Send deprecation notices to registered listeners. 72 | config.active_support.deprecation = :notify 73 | 74 | # Use default logging formatter so that PID and timestamp are not suppressed. 75 | config.log_formatter = ::Logger::Formatter.new 76 | 77 | # Do not dump schema after migrations. 78 | config.active_record.dump_schema_after_migration = false 79 | end 80 | -------------------------------------------------------------------------------- /config/environments/test.rb: -------------------------------------------------------------------------------- 1 | Rails.application.configure do 2 | # Settings specified here will take precedence over those in config/application.rb. 3 | 4 | # The test environment is used exclusively to run your application's 5 | # test suite. You never need to work with it otherwise. Remember that 6 | # your test database is "scratch space" for the test suite and is wiped 7 | # and recreated between test runs. Don't rely on the data there! 8 | config.cache_classes = true 9 | 10 | # Do not eager load code on boot. This avoids loading your whole application 11 | # just for the purpose of running a single test. If you are using a tool that 12 | # preloads Rails for running tests, you may have to set it to true. 13 | config.eager_load = false 14 | 15 | # Configure static file server for tests with Cache-Control for performance. 16 | config.serve_static_files = true 17 | config.static_cache_control = 'public, max-age=3600' 18 | 19 | # Show full error reports and disable caching. 20 | config.consider_all_requests_local = true 21 | config.action_controller.perform_caching = false 22 | 23 | # Raise exceptions instead of rendering exception templates. 24 | config.action_dispatch.show_exceptions = false 25 | 26 | # Disable request forgery protection in test environment. 27 | config.action_controller.allow_forgery_protection = false 28 | 29 | # Tell Action Mailer not to deliver emails to the real world. 30 | # The :test delivery method accumulates sent emails in the 31 | # ActionMailer::Base.deliveries array. 32 | config.action_mailer.delivery_method = :test 33 | 34 | # Randomize the order test cases are executed. 35 | config.active_support.test_order = :random 36 | 37 | # Print deprecation notices to the stderr. 38 | config.active_support.deprecation = :stderr 39 | 40 | # Raises error for missing translations 41 | # config.action_view.raise_on_missing_translations = true 42 | end 43 | -------------------------------------------------------------------------------- /config/initializers/assets.rb: -------------------------------------------------------------------------------- 1 | # Be sure to restart your server when you modify this file. 2 | 3 | # Version of your assets, change this if you want to expire all your assets. 4 | Rails.application.config.assets.version = '1.0' 5 | 6 | # Add additional assets to the asset load path 7 | # Rails.application.config.assets.paths << Emoji.images_path 8 | 9 | # Precompile additional assets. 10 | # application.js, application.css, and all non-JS/CSS in app/assets folder are already added. 11 | # Rails.application.config.assets.precompile += %w( search.js ) 12 | -------------------------------------------------------------------------------- /config/initializers/backtrace_silencers.rb: -------------------------------------------------------------------------------- 1 | # Be sure to restart your server when you modify this file. 2 | 3 | # You can add backtrace silencers for libraries that you're using but don't wish to see in your backtraces. 4 | # Rails.backtrace_cleaner.add_silencer { |line| line =~ /my_noisy_library/ } 5 | 6 | # You can also remove all the silencers if you're trying to debug a problem that might stem from framework code. 7 | # Rails.backtrace_cleaner.remove_silencers! 8 | -------------------------------------------------------------------------------- /config/initializers/cookies_serializer.rb: -------------------------------------------------------------------------------- 1 | # Be sure to restart your server when you modify this file. 2 | 3 | Rails.application.config.action_dispatch.cookies_serializer = :json 4 | -------------------------------------------------------------------------------- /config/initializers/filter_parameter_logging.rb: -------------------------------------------------------------------------------- 1 | # Be sure to restart your server when you modify this file. 2 | 3 | # Configure sensitive parameters which will be filtered from the log file. 4 | Rails.application.config.filter_parameters += [:password] 5 | -------------------------------------------------------------------------------- /config/initializers/inflections.rb: -------------------------------------------------------------------------------- 1 | # Be sure to restart your server when you modify this file. 2 | 3 | # Add new inflection rules using the following format. Inflections 4 | # are locale specific, and you may define rules for as many different 5 | # locales as you wish. All of these examples are active by default: 6 | # ActiveSupport::Inflector.inflections(:en) do |inflect| 7 | # inflect.plural /^(ox)$/i, '\1en' 8 | # inflect.singular /^(ox)en/i, '\1' 9 | # inflect.irregular 'person', 'people' 10 | # inflect.uncountable %w( fish sheep ) 11 | # end 12 | 13 | # These inflection rules are supported but not enabled by default: 14 | # ActiveSupport::Inflector.inflections(:en) do |inflect| 15 | # inflect.acronym 'RESTful' 16 | # end 17 | -------------------------------------------------------------------------------- /config/initializers/mime_types.rb: -------------------------------------------------------------------------------- 1 | # Be sure to restart your server when you modify this file. 2 | 3 | # Add new mime types for use in respond_to blocks: 4 | # Mime::Type.register "text/richtext", :rtf 5 | -------------------------------------------------------------------------------- /config/initializers/session_store.rb: -------------------------------------------------------------------------------- 1 | # Be sure to restart your server when you modify this file. 2 | 3 | Rails.application.config.session_store :cookie_store, key: '_docker_example_session' 4 | -------------------------------------------------------------------------------- /config/initializers/wrap_parameters.rb: -------------------------------------------------------------------------------- 1 | # Be sure to restart your server when you modify this file. 2 | 3 | # This file contains settings for ActionController::ParamsWrapper which 4 | # is enabled by default. 5 | 6 | # Enable parameter wrapping for JSON. You can disable this by setting :format to an empty array. 7 | ActiveSupport.on_load(:action_controller) do 8 | wrap_parameters format: [:json] if respond_to?(:wrap_parameters) 9 | end 10 | 11 | # To enable root element in JSON for ActiveRecord objects. 12 | # ActiveSupport.on_load(:active_record) do 13 | # self.include_root_in_json = true 14 | # end 15 | -------------------------------------------------------------------------------- /config/locales/en.yml: -------------------------------------------------------------------------------- 1 | # Files in the config/locales directory are used for internationalization 2 | # and are automatically loaded by Rails. If you want to use locales other 3 | # than English, add the necessary files in this directory. 4 | # 5 | # To use the locales, use `I18n.t`: 6 | # 7 | # I18n.t 'hello' 8 | # 9 | # In views, this is aliased to just `t`: 10 | # 11 | # <%= t('hello') %> 12 | # 13 | # To use a different locale, set it with `I18n.locale`: 14 | # 15 | # I18n.locale = :es 16 | # 17 | # This would use the information in config/locales/es.yml. 18 | # 19 | # To learn more, please read the Rails Internationalization guide 20 | # available at http://guides.rubyonrails.org/i18n.html. 21 | 22 | en: 23 | hello: "Hello world" 24 | -------------------------------------------------------------------------------- /config/routes.rb: -------------------------------------------------------------------------------- 1 | Rails.application.routes.draw do 2 | # The priority is based upon order of creation: first created -> highest priority. 3 | # See how all your routes lay out with "rake routes". 4 | 5 | # You can have the root of your site routed with "root" 6 | # root 'welcome#index' 7 | 8 | # Example of regular route: 9 | # get 'products/:id' => 'catalog#view' 10 | 11 | # Example of named route that can be invoked with purchase_url(id: product.id) 12 | # get 'products/:id/purchase' => 'catalog#purchase', as: :purchase 13 | 14 | # Example resource route (maps HTTP verbs to controller actions automatically): 15 | # resources :products 16 | 17 | # Example resource route with options: 18 | # resources :products do 19 | # member do 20 | # get 'short' 21 | # post 'toggle' 22 | # end 23 | # 24 | # collection do 25 | # get 'sold' 26 | # end 27 | # end 28 | 29 | # Example resource route with sub-resources: 30 | # resources :products do 31 | # resources :comments, :sales 32 | # resource :seller 33 | # end 34 | 35 | # Example resource route with more complex sub-resources: 36 | # resources :products do 37 | # resources :comments 38 | # resources :sales do 39 | # get 'recent', on: :collection 40 | # end 41 | # end 42 | 43 | # Example resource route with concerns: 44 | # concern :toggleable do 45 | # post 'toggle' 46 | # end 47 | # resources :posts, concerns: :toggleable 48 | # resources :photos, concerns: :toggleable 49 | 50 | # Example resource route within a namespace: 51 | # namespace :admin do 52 | # # Directs /admin/products/* to Admin::ProductsController 53 | # # (app/controllers/admin/products_controller.rb) 54 | # resources :products 55 | # end 56 | end 57 | -------------------------------------------------------------------------------- /config/secrets.yml: -------------------------------------------------------------------------------- 1 | # Be sure to restart your server when you modify this file. 2 | 3 | # Your secret key is used for verifying the integrity of signed cookies. 4 | # If you change this key, all old signed cookies will become invalid! 5 | 6 | # Make sure the secret is at least 30 characters and all random, 7 | # no regular words or you'll be exposed to dictionary attacks. 8 | # You can use `rake secret` to generate a secure secret key. 9 | 10 | # Make sure the secrets in this file are kept private 11 | # if you're sharing your code publicly. 12 | 13 | development: 14 | secret_key_base: c586fc607a524eeb269469e67470a16d7300ef4c196bbf0040b8c535ef7650bc99fd3012aaefa3455edf4338262c16ffe550c9406f0c70700abf8c08f94b7630 15 | 16 | test: 17 | secret_key_base: 482f1728b893d7e6470c73c94b096ad6f3ba3b76d605c83aa13b71fb58d34b12abcb0464071d461c526f5e947657f2a277c29d0e62440766f3eea249998a5366 18 | 19 | # Do not keep production secrets in the repository, 20 | # instead read values from the environment. 21 | production: 22 | secret_key_base: <%= ENV["SECRET_KEY_BASE"] %> 23 | -------------------------------------------------------------------------------- /db/seeds.rb: -------------------------------------------------------------------------------- 1 | # This file should contain all the record creation needed to seed the database with its default values. 2 | # The data can then be loaded with the rake db:seed (or created alongside the db with db:setup). 3 | # 4 | # Examples: 5 | # 6 | # cities = City.create([{ name: 'Chicago' }, { name: 'Copenhagen' }]) 7 | # Mayor.create(name: 'Emanuel', city: cities.first) 8 | -------------------------------------------------------------------------------- /docker-compose.override.yml: -------------------------------------------------------------------------------- 1 | app: 2 | 3 | # map our application source code, in full, to the application root of our container 4 | volumes: 5 | - .:/var/www/docker_example 6 | 7 | web: 8 | 9 | # use whatever volumes are configured for the app container 10 | volumes_from: 11 | - app 12 | -------------------------------------------------------------------------------- /docker-compose.yml: -------------------------------------------------------------------------------- 1 | # service configuration for our database 2 | db: 3 | 4 | # use the preferred version of the official Postgres image 5 | # see https://hub.docker.com/_/postgres/ 6 | image: postgres:9.4.5 7 | 8 | # persist the database between containers by storing it in a volume 9 | volumes: 10 | - docker-example-postgres:/var/lib/postgresql/data 11 | 12 | # service configuration for our dockerized Rails app 13 | app: 14 | 15 | # use the Dockerfile next to this file 16 | build: . 17 | 18 | # sources environment variable configuration for our app 19 | env_file: .env 20 | 21 | # rely on the RAILS_ENV value of the host machine 22 | environment: 23 | RAILS_ENV: $RAILS_ENV 24 | 25 | # makes the app container aware of the DB container 26 | links: 27 | - db 28 | 29 | # expose the port we configured Unicorn to bind to 30 | expose: 31 | - "3000" 32 | 33 | # service configuration for our web server 34 | web: 35 | 36 | # set the build context to the root of the Rails app 37 | build: . 38 | 39 | # build with a different Dockerfile 40 | dockerfile: config/containers/Dockerfile-nginx 41 | 42 | # makes the web container aware of the app container 43 | links: 44 | - app 45 | 46 | # expose the port we configured Nginx to bind to 47 | ports: 48 | - "80:80" 49 | -------------------------------------------------------------------------------- /lib/assets/.keep: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/cstump/docker_example/8125f3e08d0febdc59fabb08efce82cc2b29224f/lib/assets/.keep -------------------------------------------------------------------------------- /lib/tasks/.keep: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/cstump/docker_example/8125f3e08d0febdc59fabb08efce82cc2b29224f/lib/tasks/.keep -------------------------------------------------------------------------------- /log/.keep: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/cstump/docker_example/8125f3e08d0febdc59fabb08efce82cc2b29224f/log/.keep -------------------------------------------------------------------------------- /public/404.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | The page you were looking for doesn't exist (404) 5 | 6 | 55 | 56 | 57 | 58 | 59 |
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