diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..4ba5ee4
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,19 @@
+
+#FROM ruby:2.5.1
+FROM ruby:2.3
+RUN apt-get update -qq && apt-get install -y build-essential libpq-dev nodejs
+ 
+# Install RMagick
+# RUN apt-get install -y libmagickwand-dev imagemagick
+ 
+# Install Nokogiri
+# RUN apt-get install -y zlib1g-dev
+ 
+RUN mkdir /myapp
+WORKDIR /tmp
+COPY Gemfile Gemfile
+COPY Gemfile.lock Gemfile.lock
+RUN bundle install -j 4
+ 
+ADD . /myapp
+WORKDIR /myapp
diff --git a/Gemfile b/Gemfile
index 12f2e88..4be1468 100644
--- a/Gemfile
+++ b/Gemfile
@@ -4,7 +4,8 @@ gem 'rspec_junit_formatter', :require => false, :group => :test
 gem 'simplecov', :require => false, :group => :test
 git_source(:github) { |repo| "https://github.com/#{repo}.git" }
 
-ruby '2.5.1'
+#ruby '2.5.1'
+ruby '2.3.8'
 
 # Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
 gem 'rails', '~> 5.2.0'
@@ -36,6 +37,9 @@ gem 'jbuilder', '~> 2.5'
 # Use Capistrano for deployment
 # gem 'capistrano-rails', group: :development
 
+# Use rubocop lint for code coverage report
+gem 'rubocop', '~> 0.43.0'
+
 # Reduces boot times through caching; required in config/boot.rb
 gem 'bootsnap', '>= 1.1.0', require: false
 
diff --git a/README.md b/README.md
index 7db80e4..e2a2573 100644
--- a/README.md
+++ b/README.md
@@ -22,3 +22,5 @@ Things you may want to cover:
 * Deployment instructions
 
 * ...
+
+GPullBuilder Test feature/branch3
diff --git a/database.yml b/database.yml
new file mode 100644
index 0000000..9b71007
--- /dev/null
+++ b/database.yml
@@ -0,0 +1,13 @@
+development: &default
+  adapter: postgresql
+  encoding: unicode
+  database: your-project_development
+  pool: 5
+  username: <%= ENV.fetch('DB_USERNAME', 'your-project') %>
+  password: <%= ENV.fetch('DB_PASSWORD', 'your-project') %>
+  host: <%= ENV.fetch('DB_1_PORT_5432_TCP_ADDR', 'localhost') %>
+  port: <%= ENV.fetch('DB_1_PORT_5432_TCP_PORT', '5432') %>
+ 
+test: &test
+  <<: *default
+  database: your-project_test
diff --git a/docker-compose.yml b/docker-compose.yml
new file mode 100644
index 0000000..fa1a540
--- /dev/null
+++ b/docker-compose.yml
@@ -0,0 +1,32 @@
+db:
+  image: postgres
+  ports:
+    - "5432"
+ 
+redis:
+  image: redis
+  ports:
+    - "6379"
+ 
+web:
+  build: .
+  command: bundle exec rails s -p 3000 -b '0.0.0.0'
+  volumes:
+    - .:/myapp
+  ports:
+    - "3000:3000"
+  environment:
+    - DB_USERNAME=postgres
+    - DB_PASSWORD=
+  links:
+    - db
+    # - redis
+ 
+# sidekiq:
+#   build: .
+#   command: bundle exec sidekiq
+#   links:
+#     - db
+#     - redis
+#   volumes:
+#     - .:/usr/src/service
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index c641a55..68a7c00 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -1,3 +1,3 @@
 require 'simplecov'
 SimpleCov.start
-require_relative '/var/lib/jenkins/workspace/CI_RubyOnRails/app/controllers/string_ops'
+require_relative '../app/controllers/string_ops'