Updated for testing

Dockerfile

@@ -3,7 +3,7 @@ FROM ruby:2.5-alpine
 ENV http_proxy http://proxy.admu.edu.ph:3128
 ENV https_proxy http://proxy.admu.edu.ph:3128
 
-RUN apk update && apk add build-base nodejs postgresql-dev
+RUN apk update && apk add build-base nodejs
 
 RUN apk add --update bash tzdata sqlite sqlite-dev
 

Gemfile

 source 'https://rubygems.org'
+git_source(:github) { |repo| "https://github.com/#{repo}.git" }
 
+ruby '2.5.1'
+
+# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
 gem 'rails', '~> 5.2.0'
+# Use sqlite3 as the database for Active Record
+gem 'sqlite3'
+# Use Puma as the app server
+gem 'puma', '~> 3.11'
+# Use SCSS for stylesheets
+gem 'sass-rails', '~> 5.0'
+# Use Uglifier as compressor for JavaScript assets
+gem 'uglifier', '>= 1.3.0'
+# See https://github.com/rails/execjs#readme for more supported runtimes
+# gem 'mini_racer', platforms: :ruby
+
+# Use CoffeeScript for .coffee assets and views
+gem 'coffee-rails', '~> 4.2'
+# Turbolinks makes navigating your web application faster. Read more: https://github.com/turbolinks/turbolinks
+gem 'turbolinks', '~> 5'
+# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
+gem 'jbuilder', '~> 2.5'
+# Use Redis adapter to run Action Cable in production
+# gem 'redis', '~> 4.0'
+# Use ActiveModel has_secure_password
+# gem 'bcrypt', '~> 3.1.7'
+
+# Use ActiveStorage variant
+# gem 'mini_magick', '~> 4.8'
+
+# Use Capistrano for deployment
+# gem 'capistrano-rails', group: :development
+
+# Reduces boot times through caching; required in config/boot.rb
+gem 'bootsnap', '>= 1.1.0', require: false
+
+group :development, :test do
+  # Call 'byebug' anywhere in the code to stop execution and get a debugger console
+  gem 'byebug', platforms: [:mri, :mingw, :x64_mingw]
+end
+
+group :development do
+  # Access an interactive console on exception pages or by calling 'console' anywhere in the code.
+  gem 'web-console', '>= 3.3.0'
+  gem 'listen', '>= 3.0.5', '< 3.2'
+  # Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring
+  gem 'spring'
+  gem 'spring-watcher-listen', '~> 2.0.0'
+end
+
+group :test do
+  # Adds support for Capybara system testing and selenium driver
+  gem 'capybara', '>= 2.15', '< 4.0'
+  gem 'selenium-webdriver'
+  # Easy installation and use of chromedriver to run system tests with Chrome
+  gem 'chromedriver-helper'
+end
+
+# Windows does not include zoneinfo files, so bundle the tzinfo-data gem
+gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]

Gemfile.lock

+GEM
+  remote: https://rubygems.org/
+  specs:
+    actioncable (5.2.0)
+      actionpack (= 5.2.0)
+      nio4r (~> 2.0)
+      websocket-driver (>= 0.6.1)
+    actionmailer (5.2.0)
+      actionpack (= 5.2.0)
+      actionview (= 5.2.0)
+      activejob (= 5.2.0)
+      mail (~> 2.5, >= 2.5.4)
+      rails-dom-testing (~> 2.0)
+    actionpack (5.2.0)
+      actionview (= 5.2.0)
+      activesupport (= 5.2.0)
+      rack (~> 2.0)
+      rack-test (>= 0.6.3)
+      rails-dom-testing (~> 2.0)
+      rails-html-sanitizer (~> 1.0, >= 1.0.2)
+    actionview (5.2.0)
+      activesupport (= 5.2.0)
+      builder (~> 3.1)
+      erubi (~> 1.4)
+      rails-dom-testing (~> 2.0)
+      rails-html-sanitizer (~> 1.0, >= 1.0.3)
+    activejob (5.2.0)
+      activesupport (= 5.2.0)
+      globalid (>= 0.3.6)
+    activemodel (5.2.0)
+      activesupport (= 5.2.0)
+    activerecord (5.2.0)
+      activemodel (= 5.2.0)
+      activesupport (= 5.2.0)
+      arel (>= 9.0)
+    activestorage (5.2.0)
+      actionpack (= 5.2.0)
+      activerecord (= 5.2.0)
+      marcel (~> 0.3.1)
+    activesupport (5.2.0)
+      concurrent-ruby (~> 1.0, >= 1.0.2)
+      i18n (>= 0.7, < 2)
+      minitest (~> 5.1)
+      tzinfo (~> 1.1)
+    addressable (2.5.2)
+      public_suffix (>= 2.0.2, < 4.0)
+    archive-zip (0.11.0)
+      io-like (~> 0.3.0)
+    arel (9.0.0)
+    bindex (0.5.0)
+    bootsnap (1.3.0)
+      msgpack (~> 1.0)
+    builder (3.2.3)
+    byebug (10.0.2)
+    capybara (3.3.1)
+      addressable
+      mini_mime (>= 0.1.3)
+      nokogiri (~> 1.8)
+      rack (>= 1.6.0)
+      rack-test (>= 0.6.3)
+      xpath (~> 3.1)
+    childprocess (0.9.0)
+      ffi (~> 1.0, >= 1.0.11)
+    chromedriver-helper (1.2.0)
+      archive-zip (~> 0.10)
+      nokogiri (~> 1.8)
+    coffee-rails (4.2.2)
+      coffee-script (>= 2.2.0)
+      railties (>= 4.0.0)
+    coffee-script (2.4.1)
+      coffee-script-source
+      execjs
+    coffee-script-source (1.12.2)
+    concurrent-ruby (1.0.5)
+    crass (1.0.4)
+    erubi (1.7.1)
+    execjs (2.7.0)
+    ffi (1.9.25)
+    globalid (0.4.1)
+      activesupport (>= 4.2.0)
+    i18n (1.0.1)
+      concurrent-ruby (~> 1.0)
+    io-like (0.3.0)
+    jbuilder (2.7.0)
+      activesupport (>= 4.2.0)
+      multi_json (>= 1.2)
+    listen (3.1.5)
+      rb-fsevent (~> 0.9, >= 0.9.4)
+      rb-inotify (~> 0.9, >= 0.9.7)
+      ruby_dep (~> 1.2)
+    loofah (2.2.2)
+      crass (~> 1.0.2)
+      nokogiri (>= 1.5.9)
+    mail (2.7.0)
+      mini_mime (>= 0.1.1)
+    marcel (0.3.2)
+      mimemagic (~> 0.3.2)
+    method_source (0.9.0)
+    mimemagic (0.3.2)
+    mini_mime (1.0.0)
+    mini_portile2 (2.3.0)
+    minitest (5.11.3)
+    msgpack (1.2.4)
+    multi_json (1.13.1)
+    nio4r (2.3.1)
+    nokogiri (1.8.3)
+      mini_portile2 (~> 2.3.0)
+    public_suffix (3.0.2)
+    puma (3.11.4)
+    rack (2.0.5)
+    rack-test (1.0.0)
+      rack (>= 1.0, < 3)
+    rails (5.2.0)
+      actioncable (= 5.2.0)
+      actionmailer (= 5.2.0)
+      actionpack (= 5.2.0)
+      actionview (= 5.2.0)
+      activejob (= 5.2.0)
+      activemodel (= 5.2.0)
+      activerecord (= 5.2.0)
+      activestorage (= 5.2.0)
+      activesupport (= 5.2.0)
+      bundler (>= 1.3.0)
+      railties (= 5.2.0)
+      sprockets-rails (>= 2.0.0)
+    rails-dom-testing (2.0.3)
+      activesupport (>= 4.2.0)
+      nokogiri (>= 1.6)
+    rails-html-sanitizer (1.0.4)
+      loofah (~> 2.2, >= 2.2.2)
+    railties (5.2.0)
+      actionpack (= 5.2.0)
+      activesupport (= 5.2.0)
+      method_source
+      rake (>= 0.8.7)
+      thor (>= 0.18.1, < 2.0)
+    rake (12.3.1)
+    rb-fsevent (0.10.3)
+    rb-inotify (0.9.10)
+      ffi (>= 0.5.0, < 2)
+    ruby_dep (1.5.0)
+    rubyzip (1.2.1)
+    sass (3.5.6)
+      sass-listen (~> 4.0.0)
+    sass-listen (4.0.0)
+      rb-fsevent (~> 0.9, >= 0.9.4)
+      rb-inotify (~> 0.9, >= 0.9.7)
+    sass-rails (5.0.7)
+      railties (>= 4.0.0, < 6)
+      sass (~> 3.1)
+      sprockets (>= 2.8, < 4.0)
+      sprockets-rails (>= 2.0, < 4.0)
+      tilt (>= 1.1, < 3)
+    selenium-webdriver (3.13.0)
+      childprocess (~> 0.5)
+      rubyzip (~> 1.2)
+    spring (2.0.2)
+      activesupport (>= 4.2)
+    spring-watcher-listen (2.0.1)
+      listen (>= 2.7, < 4.0)
+      spring (>= 1.2, < 3.0)
+    sprockets (3.7.2)
+      concurrent-ruby (~> 1.0)
+      rack (> 1, < 3)
+    sprockets-rails (3.2.1)
+      actionpack (>= 4.0)
+      activesupport (>= 4.0)
+      sprockets (>= 3.0.0)
+    sqlite3 (1.3.13)
+    thor (0.20.0)
+    thread_safe (0.3.6)
+    tilt (2.0.8)
+    turbolinks (5.1.1)
+      turbolinks-source (~> 5.1)
+    turbolinks-source (5.1.0)
+    tzinfo (1.2.5)
+      thread_safe (~> 0.1)
+    uglifier (4.1.12)
+      execjs (>= 0.3.0, < 3)
+    web-console (3.6.2)
+      actionview (>= 5.0)
+      activemodel (>= 5.0)
+      bindex (>= 0.4.0)
+      railties (>= 5.0)
+    websocket-driver (0.7.0)
+      websocket-extensions (>= 0.1.0)
+    websocket-extensions (0.1.3)
+    xpath (3.1.0)
+      nokogiri (~> 1.8)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  bootsnap (>= 1.1.0)
+  byebug
+  capybara (>= 2.15, < 4.0)
+  chromedriver-helper
+  coffee-rails (~> 4.2)
+  jbuilder (~> 2.5)
+  listen (>= 3.0.5, < 3.2)
+  puma (~> 3.11)
+  rails (~> 5.2.0)
+  sass-rails (~> 5.0)
+  selenium-webdriver
+  spring
+  spring-watcher-listen (~> 2.0.0)
+  sqlite3
+  turbolinks (~> 5)
+  tzinfo-data
+  uglifier (>= 1.3.0)
+  web-console (>= 3.3.0)
+
+RUBY VERSION
+   ruby 2.5.1p57
+
+BUNDLED WITH
+   1.16.2

start

+#!/bin/bash
+bundle check || bundle install --system -j4
+rails s -b 0.0.0.0
\ No newline at end of file