Docker With Rails Webpacker

.browserslistrc

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+defaults

.env

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+POSTGRES_USER=postgres
+POSTGRES_PASSWORD=password

.gitattributes

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+# See https://git-scm.com/docs/gitattributes for more about git attribute files.
+
+# Mark the database schema as having been generated.
+db/schema.rb linguist-generated
+
+# Mark the yarn lockfile as having been generated.
+yarn.lock linguist-generated
+
+# Mark any vendored files as having been vendored.
+vendor/* linguist-vendored

.gitignore

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+# See https://help.github.com/articles/ignoring-files for more about ignoring files.
+#
+# If you find yourself ignoring temporary files generated by your text editor
+# or operating system, you probably want to add a global ignore instead:
+#   git config --global core.excludesfile '~/.gitignore_global'
+
+# Ignore bundler config.
+/.bundle
+
+# Ignore all logfiles and tempfiles.
+/log/*
+/tmp/*
+!/log/.keep
+!/tmp/.keep
+
+# Ignore pidfiles, but keep the directory.
+/tmp/pids/*
+!/tmp/pids/
+!/tmp/pids/.keep
+
+# Ignore uploaded files in development.
+/storage/*
+!/storage/.keep
+
+/public/assets
+.byebug_history
+
+# Ignore master key for decrypting credentials and more.
+/config/master.key
+
+/public/packs
+/public/packs-test
+/node_modules
+/yarn-error.log
+yarn-debug.log*
+.yarn-integrity

.ruby-version

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+ruby-3.0.0

Dockerfile

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+FROM ruby:3.0.0
+
+RUN apt-get update -qq && apt-get install -y nodejs npm\
+  && rm -rf /var/lib/apt/lists/* \
+  && curl -o- -L https://yarnpkg.com/install.sh | bash
+
+WORKDIR /app
+
+COPY Gemfile /app/Gemfile
+COPY Gemfile.lock /app/Gemfile.lock
+
+RUN bundle install
+RUN npm install -g yarn
+RUN yarn install --check-files
+
+COPY development-entrypoint.sh /usr/bin/
+
+RUN chmod +x /usr/bin/development-entrypoint.sh
+
+ENTRYPOINT ["development-entrypoint.sh"]
+
+EXPOSE 3000

Gemfile

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+source 'https://rubygems.org'
+git_source(:github) { |repo| "https://github.com/#{repo}.git" }
+
+ruby '3.0.0'
+gem 'rails', '~> 6.1.3', '>= 6.1.3.1'
+gem 'pg', '~> 1.1'
+gem 'puma', '~> 5.0'
+gem 'sass-rails', '>= 6'
+gem 'webpacker', '~> 5.0'
+gem 'turbolinks', '~> 5'
+gem 'jbuilder', '~> 2.7'
+gem 'bootsnap', '>= 1.4.4', require: false
+gem 'dotenv-rails'
+
+group :development, :test do
+  gem 'byebug', platforms: [:mri, :mingw, :x64_mingw]
+  gem 'annotate'
+  gem 'brakeman'
+end
+
+group :development do
+  gem 'web-console', '>= 4.1.0'
+  gem 'rack-mini-profiler', '~> 2.0'
+  gem 'listen', '~> 3.3'
+  gem 'spring'
+  gem 'pry'
+end
+
+group :test do
+  gem 'capybara', '>= 3.26'
+  gem 'selenium-webdriver'
+  gem 'webdrivers'
+end
+
+gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]

Gemfile.lock

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+GEM
+  remote: https://rubygems.org/
+  specs:
+    actioncable (6.1.3.1)
+      actionpack (= 6.1.3.1)
+      activesupport (= 6.1.3.1)
+      nio4r (~> 2.0)
+      websocket-driver (>= 0.6.1)
+    actionmailbox (6.1.3.1)
+      actionpack (= 6.1.3.1)
+      activejob (= 6.1.3.1)
+      activerecord (= 6.1.3.1)
+      activestorage (= 6.1.3.1)
+      activesupport (= 6.1.3.1)
+      mail (>= 2.7.1)
+    actionmailer (6.1.3.1)
+      actionpack (= 6.1.3.1)
+      actionview (= 6.1.3.1)
+      activejob (= 6.1.3.1)
+      activesupport (= 6.1.3.1)
+      mail (~> 2.5, >= 2.5.4)
+      rails-dom-testing (~> 2.0)
+    actionpack (6.1.3.1)
+      actionview (= 6.1.3.1)
+      activesupport (= 6.1.3.1)
+      rack (~> 2.0, >= 2.0.9)
+      rack-test (>= 0.6.3)
+      rails-dom-testing (~> 2.0)
+      rails-html-sanitizer (~> 1.0, >= 1.2.0)
+    actiontext (6.1.3.1)
+      actionpack (= 6.1.3.1)
+      activerecord (= 6.1.3.1)
+      activestorage (= 6.1.3.1)
+      activesupport (= 6.1.3.1)
+      nokogiri (>= 1.8.5)
+    actionview (6.1.3.1)
+      activesupport (= 6.1.3.1)
+      builder (~> 3.1)
+      erubi (~> 1.4)
+      rails-dom-testing (~> 2.0)
+      rails-html-sanitizer (~> 1.1, >= 1.2.0)
+    activejob (6.1.3.1)
+      activesupport (= 6.1.3.1)
+      globalid (>= 0.3.6)
+    activemodel (6.1.3.1)
+      activesupport (= 6.1.3.1)
+    activerecord (6.1.3.1)
+      activemodel (= 6.1.3.1)
+      activesupport (= 6.1.3.1)
+    activestorage (6.1.3.1)
+      actionpack (= 6.1.3.1)
+      activejob (= 6.1.3.1)
+      activerecord (= 6.1.3.1)
+      activesupport (= 6.1.3.1)
+      marcel (~> 1.0.0)
+      mini_mime (~> 1.0.2)
+    activesupport (6.1.3.1)
+      concurrent-ruby (~> 1.0, >= 1.0.2)
+      i18n (>= 1.6, < 2)
+      minitest (>= 5.1)
+      tzinfo (~> 2.0)
+      zeitwerk (~> 2.3)
+    addressable (2.7.0)
+      public_suffix (>= 2.0.2, < 5.0)
+    annotate (3.1.1)
+      activerecord (>= 3.2, < 7.0)
+      rake (>= 10.4, < 14.0)
+    bindex (0.8.1)
+    bootsnap (1.7.3)
+      msgpack (~> 1.0)
+    brakeman (5.0.0)
+    builder (3.2.4)
+    byebug (11.1.3)
+    capybara (3.35.3)
+      addressable
+      mini_mime (>= 0.1.3)
+      nokogiri (~> 1.8)
+      rack (>= 1.6.0)
+      rack-test (>= 0.6.3)
+      regexp_parser (>= 1.5, < 3.0)
+      xpath (~> 3.2)
+    childprocess (3.0.0)
+    coderay (1.1.3)
+    concurrent-ruby (1.1.8)
+    crass (1.0.6)
+    dotenv (2.7.6)
+    dotenv-rails (2.7.6)
+      dotenv (= 2.7.6)
+      railties (>= 3.2)
+    erubi (1.10.0)
+    ffi (1.15.0)
+    globalid (0.4.2)
+      activesupport (>= 4.2.0)
+    i18n (1.8.10)
+      concurrent-ruby (~> 1.0)
+    jbuilder (2.11.2)
+      activesupport (>= 5.0.0)
+    listen (3.5.1)
+      rb-fsevent (~> 0.10, >= 0.10.3)
+      rb-inotify (~> 0.9, >= 0.9.10)
+    loofah (2.9.1)
+      crass (~> 1.0.2)
+      nokogiri (>= 1.5.9)
+    mail (2.7.1)
+      mini_mime (>= 0.1.1)
+    marcel (1.0.1)
+    method_source (1.0.0)
+    mini_mime (1.0.3)
+    minitest (5.14.4)
+    msgpack (1.4.2)
+    nio4r (2.5.7)
+    nokogiri (1.11.3-x86_64-linux)
+      racc (~> 1.4)
+    pg (1.2.3)
+    pry (0.14.1)
+      coderay (~> 1.1)
+      method_source (~> 1.0)
+    public_suffix (4.0.6)
+    puma (5.2.2)
+      nio4r (~> 2.0)
+    racc (1.5.2)
+    rack (2.2.3)
+    rack-mini-profiler (2.3.1)
+      rack (>= 1.2.0)
+    rack-proxy (0.6.5)
+      rack
+    rack-test (1.1.0)
+      rack (>= 1.0, < 3)
+    rails (6.1.3.1)
+      actioncable (= 6.1.3.1)
+      actionmailbox (= 6.1.3.1)
+      actionmailer (= 6.1.3.1)
+      actionpack (= 6.1.3.1)
+      actiontext (= 6.1.3.1)
+      actionview (= 6.1.3.1)
+      activejob (= 6.1.3.1)
+      activemodel (= 6.1.3.1)
+      activerecord (= 6.1.3.1)
+      activestorage (= 6.1.3.1)
+      activesupport (= 6.1.3.1)
+      bundler (>= 1.15.0)
+      railties (= 6.1.3.1)
+      sprockets-rails (>= 2.0.0)
+    rails-dom-testing (2.0.3)
+      activesupport (>= 4.2.0)
+      nokogiri (>= 1.6)
+    rails-html-sanitizer (1.3.0)
+      loofah (~> 2.3)
+    railties (6.1.3.1)
+      actionpack (= 6.1.3.1)
+      activesupport (= 6.1.3.1)
+      method_source
+      rake (>= 0.8.7)
+      thor (~> 1.0)
+    rake (13.0.3)
+    rb-fsevent (0.10.4)
+    rb-inotify (0.10.1)
+      ffi (~> 1.0)
+    regexp_parser (2.1.1)
+    rubyzip (2.3.0)
+    sass-rails (6.0.0)
+      sassc-rails (~> 2.1, >= 2.1.1)
+    sassc (2.4.0)
+      ffi (~> 1.9)
+    sassc-rails (2.1.2)
+      railties (>= 4.0.0)
+      sassc (>= 2.0)
+      sprockets (> 3.0)
+      sprockets-rails
+      tilt
+    selenium-webdriver (3.142.7)
+      childprocess (>= 0.5, < 4.0)
+      rubyzip (>= 1.2.2)
+    semantic_range (3.0.0)
+    spring (2.1.1)
+    sprockets (4.0.2)
+      concurrent-ruby (~> 1.0)
+      rack (> 1, < 3)
+    sprockets-rails (3.2.2)
+      actionpack (>= 4.0)
+      activesupport (>= 4.0)
+      sprockets (>= 3.0.0)
+    thor (1.1.0)
+    tilt (2.0.10)
+    turbolinks (5.2.1)
+      turbolinks-source (~> 5.2)
+    turbolinks-source (5.2.0)
+    tzinfo (2.0.4)
+      concurrent-ruby (~> 1.0)
+    web-console (4.1.0)
+      actionview (>= 6.0.0)
+      activemodel (>= 6.0.0)
+      bindex (>= 0.4.0)
+      railties (>= 6.0.0)
+    webdrivers (4.6.0)
+      nokogiri (~> 1.6)
+      rubyzip (>= 1.3.0)
+      selenium-webdriver (>= 3.0, < 4.0)
+    webpacker (5.2.1)
+      activesupport (>= 5.2)
+      rack-proxy (>= 0.6.1)
+      railties (>= 5.2)
+      semantic_range (>= 2.3.0)
+    websocket-driver (0.7.3)
+      websocket-extensions (>= 0.1.0)
+    websocket-extensions (0.1.5)
+    xpath (3.2.0)
+      nokogiri (~> 1.8)
+    zeitwerk (2.4.2)
+
+PLATFORMS
+  x86_64-linux
+
+DEPENDENCIES
+  annotate
+  bootsnap (>= 1.4.4)
+  brakeman
+  byebug
+  capybara (>= 3.26)
+  dotenv-rails
+  jbuilder (~> 2.7)
+  listen (~> 3.3)
+  pg (~> 1.1)
+  pry
+  puma (~> 5.0)
+  rack-mini-profiler (~> 2.0)
+  rails (~> 6.1.3, >= 6.1.3.1)
+  sass-rails (>= 6)
+  selenium-webdriver
+  spring
+  turbolinks (~> 5)
+  tzinfo-data
+  web-console (>= 4.1.0)
+  webdrivers
+  webpacker (~> 5.0)
+
+RUBY VERSION
+   ruby 3.0.0p0
+
+BUNDLED WITH
+   2.2.3

README.md

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+1. `docker-compose build`
+
+2. `docker-compose run --rm app bundle exec rails webpacker:install`
+
+3. `docker-compose run --rm app rails db:create && db:migrate`
+
+3. `docker-compose up`

Rakefile

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+# Add your own tasks in files placed in lib/tasks ending in .rake,
+# for example lib/tasks/capistrano.rake, and they will automatically be available to Rake.
+
+require_relative "config/application"
+
+Rails.application.load_tasks

app/assets/config/manifest.js

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+//= link_tree ../images

app/channels/application_cable/channel.rb

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+module ApplicationCable
+  class Channel < ActionCable::Channel::Base
+  end
+end

app/channels/application_cable/connection.rb

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+module ApplicationCable
+  class Connection < ActionCable::Connection::Base
+  end
+end

app/controllers/application_controller.rb

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+class ApplicationController < ActionController::Base
+end

app/controllers/home_controller.rb

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+class HomeController < ApplicationController
+  def index; end
+end

app/helpers/application_helper.rb

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+module ApplicationHelper
+end

app/helpers/home_helper.rb

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+module HomeHelper
+end