diff --git a/.gitignore b/.gitignore
index 1904ffff..6afbc30c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -20,3 +20,4 @@ node_modules/
 _site
 docs/build/*
 !docs/build/.keep
+vendor
diff --git a/.kitchen.yml b/.kitchen.yml
index 589d7c3c..7df5fe64 100644
--- a/.kitchen.yml
+++ b/.kitchen.yml
@@ -4,6 +4,7 @@ driver:
 
 provisioner:
   name: chef_zero
+  require_chef_omnibus: 12
 
 # Uncomment the following verifier to leverage Inspec instead of Busser (the
 # default verifier)
diff --git a/.overcommit.yml b/.overcommit.yml
index b108a3dd..af56bb55 100644
--- a/.overcommit.yml
+++ b/.overcommit.yml
@@ -4,6 +4,12 @@ PreCommit:
     on_warn: fail    # Treat all warnings as failures
     exclude:
       - test/integration/repos/**/*
+  AuthorEmail:
+    enabled: true
+    required: false
+  AuthorName:
+    enabled: true
+    required: false
   BrokenSymlinks:
     enabled: true
   BundleAudit:
diff --git a/.ruby-version b/.ruby-version
index 262714f1..55bc9834 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-ruby-2.4.0
+ruby-2.4.1
diff --git a/Berksfile b/Berksfile
index 30c95447..b3280c65 100644
--- a/Berksfile
+++ b/Berksfile
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 source 'https://supermarket.chef.io'
 solver :ruby, :required
 
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 00000000..27dffee8
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,42 @@
+FROM ruby:2.4.1
+
+RUN printf "deb http://deb.debian.org/debian testing main\ndeb http://deb.debian.org/debian testing-updates main\ndeb http://security.debian.org testing/updates main" >> /etc/apt/sources.list
+RUN apt-get update && \
+    apt-get install --yes --no-install-recommends apt-transport-https=1.0.* && \
+    apt-get clean && \
+    rm -rf /var/lib/apt/lists/*
+RUN echo 'deb https://deb.nodesource.com/node_6.x jessie main' > /etc/apt/sources.list.d/nodesource.list && \
+    curl -s https://deb.nodesource.com/gpgkey/nodesource.gpg.key | apt-key add - && \
+    apt-get update && \
+    apt-get install --yes --target-release=stable --no-install-recommends python-pip python-yaml locales nodejs=6.* build-essential && \
+    apt-get install --yes --target-release=testing --no-install-recommends git python-sphinx && \
+    apt-get clean && \
+    rm -rf /var/lib/apt/lists/*
+RUN gem update --no-document --system
+RUN npm install -g conventional-changelog-cli
+
+RUN echo 'en_US.UTF-8 UTF-8' >> /etc/locale.gen
+RUN locale-gen
+ENV LC_ALL en_US.UTF-8
+
+ENV APP_HOME /app
+RUN mkdir "$APP_HOME"
+
+RUN curl -o /tmp/chefdk.deb https://packages.chef.io/files/stable/chefdk/1.3.43/debian/8/chefdk_1.3.43-1_amd64.deb && \
+    dpkg -i /tmp/chefdk.deb && \
+    rm -rf /tmp/chefdk.deb
+
+RUN gem install bundler
+RUN pip install yamllint>=1
+
+WORKDIR $APP_HOME
+COPY package.json $APP_HOME/
+COPY Gemfile* $APP_HOME/
+COPY Berksfile* $APP_HOME/
+COPY metadata.rb $APP_HOME/
+COPY README.md $APP_HOME/
+
+RUN npm install
+RUN bundle install -j 4
+RUN chef exec berks
+
diff --git a/Gemfile b/Gemfile
index 7e3fc7f8..86493a3d 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 source 'https://rubygems.org/'
 
 group :lint do
@@ -15,7 +16,9 @@ end
 
 group :chef do
   gem 'berkshelf'
-  gem 'chefspec'
+  gem 'chef', '~> 12.0'
+  gem 'chef-zero', '~> 5.3'
+  gem 'chefspec', '~> 6.0'
   gem 'kitchen-docker'
   gem 'kitchen-vagrant'
   gem 'rspec'
diff --git a/Gemfile.lock b/Gemfile.lock
index 5f8e8691..7cdb7505 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -2,10 +2,10 @@ GEM
   remote: https://rubygems.org/
   specs:
     addressable (2.4.0)
-    artifactory (2.7.0)
+    artifactory (2.8.1)
     ast (2.3.0)
-    backports (3.6.8)
-    berkshelf (5.6.3)
+    backports (3.7.0)
+    berkshelf (5.6.4)
       addressable (~> 2.3, >= 2.3.4)
       berkshelf-api-client (>= 2.0.2, < 4.0)
       buff-config (~> 2.0)
@@ -25,7 +25,7 @@ GEM
       faraday (~> 0.9)
       httpclient (~> 2.7)
       ridley (>= 4.5, < 6.0)
-    brakeman (3.5.0)
+    brakeman (3.6.1)
     buff-config (2.0.0)
       buff-extensions (~> 2.0)
       varia_model (~> 0.6)
@@ -77,7 +77,7 @@ GEM
       fuzzyurl
       mixlib-config (~> 2.0)
       mixlib-shellout (~> 2.0)
-    chef-zero (5.3.0)
+    chef-zero (5.3.2)
       ffi-yajl (~> 2.2)
       hashie (>= 2.0, < 4.0)
       mixlib-log (~> 1.3)
@@ -87,7 +87,7 @@ GEM
       chef (>= 12.0)
       fauxhai (~> 3.6)
       rspec (~> 3.0)
-    childprocess (0.5.9)
+    childprocess (0.6.3)
       ffi (~> 1.0, >= 1.0.11)
     cleanroom (1.0.0)
     colorize (0.8.1)
@@ -114,10 +114,10 @@ GEM
       ruby_parser (~> 3.7)
     fauxhai (3.10.0)
       net-ssh
-    ffi (1.9.17)
+    ffi (1.9.18)
     ffi-yajl (2.3.0)
       libyajl2 (~> 1.2)
-    foodcritic (9.0.0)
+    foodcritic (10.4.1)
       cucumber-core (>= 1.3)
       erubis
       nokogiri (>= 1.5, < 2.0)
@@ -126,24 +126,24 @@ GEM
       treetop (~> 1.4)
       yajl-ruby (~> 1.1)
     fuzzyurl (0.9.0)
-    gh (0.15.0)
+    gh (0.15.1)
       addressable (~> 2.4.0)
       backports
       faraday (~> 0.8)
       multi_json (~> 1.0)
       net-http-persistent (~> 2.9)
       net-http-pipeline
-    gherkin (4.0.0)
+    gherkin (4.1.1)
     hashie (3.5.5)
     highline (1.7.8)
     hitimes (1.2.4)
     httpclient (2.8.3)
     iniparse (1.4.2)
     ipaddress (0.8.3)
-    json (2.0.3)
+    json (2.1.0)
     kitchen-docker (2.6.0)
       test-kitchen (>= 1.0.0)
-    kitchen-vagrant (1.0.2)
+    kitchen-vagrant (1.1.0)
       test-kitchen (~> 1.4)
     kramdown (1.13.2)
     launchy (2.4.3)
@@ -169,7 +169,7 @@ GEM
     mixlib-log (1.7.1)
     mixlib-shellout (2.2.7)
     mixlib-versioning (1.1.0)
-    molinillo (0.5.6)
+    molinillo (0.5.7)
     multi_json (1.12.1)
     multipart-post (2.0.0)
     net-http-persistent (2.9.4)
@@ -186,9 +186,9 @@ GEM
       net-ssh-gateway (>= 1.2.0)
     net-telnet (0.1.1)
     nio4r (2.0.0)
-    nokogiri (1.7.0.1)
+    nokogiri (1.7.1)
       mini_portile2 (~> 2.1.0)
-    octokit (4.6.2)
+    octokit (4.7.0)
       sawyer (~> 0.8.0, >= 0.5.3)
     ohai (8.23.0)
       chef-config (>= 12.5.0.alpha.1, < 13)
@@ -202,8 +202,8 @@ GEM
       plist (~> 3.1)
       systemu (~> 2.6.4)
       wmi-lite (~> 1.0)
-    overcommit (0.38.0)
-      childprocess (~> 0.5.8)
+    overcommit (0.39.1)
+      childprocess (~> 0.6.3)
       iniparse (~> 1.4)
     parser (2.4.0.0)
       ast (~> 2.2)
@@ -215,7 +215,8 @@ GEM
       json
       websocket (~> 1.0)
     rack (2.0.1)
-    rainbow (2.2.1)
+    rainbow (2.2.2)
+      rake
     rake (12.0.0)
     retryable (2.0.4)
     ridley (5.1.0)
@@ -255,14 +256,14 @@ GEM
     rspec_junit_formatter (0.2.3)
       builder (< 4)
       rspec-core (>= 2, < 4, != 2.12.0)
-    rubocop (0.47.1)
+    rubocop (0.48.1)
       parser (>= 2.3.3.1, < 3.0)
       powerpack (~> 0.1)
       rainbow (>= 1.99.1, < 3.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (~> 1.0, >= 1.0.1)
     ruby-progressbar (1.8.1)
-    ruby_parser (3.8.4)
+    ruby_parser (3.9.0)
       sexp_processor (~> 4.1)
     rufus-lru (1.1.0)
     safe_yaml (1.0.4)
@@ -275,7 +276,7 @@ GEM
       rspec (~> 3.0)
       rspec-its
       specinfra (~> 2.53)
-    sexp_processor (4.8.0)
+    sexp_processor (4.9.0)
     sfl (2.3)
     simplecov (0.12.0)
       docile (~> 1.1.0)
@@ -285,28 +286,28 @@ GEM
     solve (3.1.0)
       molinillo (>= 0.5)
       semverse (>= 1.1, < 3.0)
-    specinfra (2.67.2)
+    specinfra (2.67.8)
       net-scp
       net-ssh (>= 2.7, < 5.0)
       net-telnet
       sfl
     syslog-logger (1.6.8)
     systemu (2.6.5)
-    term-ansicolor (1.4.0)
+    term-ansicolor (1.6.0)
       tins (~> 1.0)
-    test-kitchen (1.15.0)
+    test-kitchen (1.16.0)
       mixlib-install (>= 1.2, < 3.0)
       mixlib-shellout (>= 1.2, < 3.0)
       net-scp (~> 1.1)
       net-ssh (>= 2.9, < 5.0)
       net-ssh-gateway (~> 1.2)
       safe_yaml (~> 1.0)
-      thor (~> 0.18)
+      thor (~> 0.19, < 0.19.2)
     thor (0.19.1)
     timers (4.0.4)
       hitimes
     tins (1.13.2)
-    travis (1.8.6)
+    travis (1.8.8)
       backports
       faraday (~> 0.9)
       faraday_middleware (~> 0.9, >= 0.9.1)
@@ -319,7 +320,7 @@ GEM
       polyglot (~> 0.3)
     typhoeus (0.8.0)
       ethon (>= 0.8.0)
-    unicode-display_width (1.1.3)
+    unicode-display_width (1.2.1)
     uuidtools (2.1.5)
     varia_model (0.6.0)
       buff-extensions (~> 2.0)
@@ -335,7 +336,9 @@ DEPENDENCIES
   berkshelf
   brakeman
   bundler-audit
-  chefspec
+  chef (~> 12.0)
+  chef-zero (~> 5.3)
+  chefspec (~> 6.0)
   coveralls
   fasterer
   foodcritic
@@ -349,4 +352,4 @@ DEPENDENCIES
   travis
 
 BUNDLED WITH
-   1.14.5
+   1.14.6
diff --git a/README.md b/README.md
index ac75f67f..3f54298e 100644
--- a/README.md
+++ b/README.md
@@ -14,6 +14,34 @@ A [chef](https://www.chef.io/) cookbook to deploy Ruby applications to Amazon Op
 Refer to [Getting Started](http://opsworks-ruby.readthedocs.io/en/latest/getting_started.html)
 guide in [documentation](http://opsworks-ruby.readthedocs.io/en/latest/index.html).
 
+## Development
+
+You can either install eveyrthing locally using [rvm](https://rvm.io/) and [pip](https://pypi.python.org/pypi/pip)
+or use the Docker container which includes all necessary dependencies inside it.
+
+### Unit Testing and Linting
+
+```
+docker-compose run -e SKIP="AuthorName AuthorEmail" cookbook \
+bash -c "overcommit --sign && overcommit -r && rspec"
+```
+
+### Integration Testing
+
+To run integration tests you need [Chef Development Kit](https://downloads.chef.io/chefdk).
+After installing it, invoke:
+
+```
+chef exec bundle install -j 4 --path vendor
+sudo chef exec bundle exec rake integration:docker
+```
+
+### Build documentation
+
+```
+docker-compose run cookbook bash -c "cd docs && make html"
+```
+
 ## Contributing
 
 Please see [CONTRIBUTING](https://github.com/ajgon/opsworks_ruby/blob/master/CONTRIBUTING.md)
diff --git a/RELEASING.md b/RELEASING.md
index 953f66ec..0acd77c9 100644
--- a/RELEASING.md
+++ b/RELEASING.md
@@ -9,7 +9,8 @@
 1. Bump version in `package.json`
 1. Bump version in `metadata.rb`
 1. Bump version in `docs/source/config.py`
-1. `conventional-changelog -p angular -i CHANGELOG.md -s`
+1. `docker-compose build`
+1. `docker-compose run cookbook sh -c "conventional-changelog -s -p angular -i CHANGELOG.md"`
 1. Commit all the things with `chore: Version bump`
 1. Tag version
 1. Push: `git push origin master --tags`
diff --git a/Rakefile b/Rakefile
index 6ce47fd1..cd55d6a3 100644
--- a/Rakefile
+++ b/Rakefile
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 require 'bundler/setup'
 
 desc 'Run Test Kitchen integration tests'
@@ -22,4 +23,4 @@ namespace :integration do
   end
 end
 
-task default: %w(integration:vagrant)
+task default: %w[integration:vagrant]
diff --git a/attributes/default.rb b/attributes/default.rb
index 76cbf02b..21afd493 100644
--- a/attributes/default.rb
+++ b/attributes/default.rb
@@ -4,10 +4,10 @@
 
 default['build-essential']['compile_time'] = true
 default['ruby-ng']['ruby_version'] = node['ruby'].try(:[], 'version') || '2.4'
-default['nginx']['source']['modules'] = %w(
+default['nginx']['source']['modules'] = %w[
   nginx::http_ssl_module nginx::http_realip_module nginx::http_gzip_static_module nginx::headers_more_module
   nginx::http_stub_status_module
-)
+]
 
 default['deploy']['timeout'] = 600
 
@@ -21,8 +21,8 @@
   'log' => 'log'
 }
 default['defaults']['global']['create_dirs_before_symlink'] =
-  %w(tmp public config ../../shared/cache ../../shared/assets)
-default['defaults']['global']['purge_before_symlink'] = %w(log tmp/cache tmp/pids public/system public/assets)
+  %w[tmp public config ../../shared/cache ../../shared/assets]
+default['defaults']['global']['purge_before_symlink'] = %w[log tmp/cache tmp/pids public/system public/assets]
 default['defaults']['global']['rollback_on_error'] = true
 default['defaults']['global']['logrotate_rotate'] = 30
 
diff --git a/docker-compose.yml b/docker-compose.yml
new file mode 100644
index 00000000..457ccb66
--- /dev/null
+++ b/docker-compose.yml
@@ -0,0 +1,8 @@
+---
+version: '2'
+
+services:
+  cookbook:
+    build: .
+    volumes:
+      - ".:/app"
diff --git a/libraries/all.rb b/libraries/all.rb
index 172819f0..4e529467 100644
--- a/libraries/all.rb
+++ b/libraries/all.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 libdir = File.expand_path('..', __FILE__)
 require File.join(libdir, 'core_ext')
 require File.join(libdir, 'helpers')
diff --git a/libraries/core_ext.rb b/libraries/core_ext.rb
index c1efa6b5..696cb4d4 100644
--- a/libraries/core_ext.rb
+++ b/libraries/core_ext.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 class Object
   def try(*a, &b)
     try!(*a, &b) if a.empty? || respond_to?(a.first)
diff --git a/libraries/drivers_appserver_base.rb b/libraries/drivers_appserver_base.rb
index f60da6fa..2cf63c05 100644
--- a/libraries/drivers_appserver_base.rb
+++ b/libraries/drivers_appserver_base.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 module Drivers
   module Appserver
     class Base < Drivers::Base
diff --git a/libraries/drivers_appserver_factory.rb b/libraries/drivers_appserver_factory.rb
index 888ad3d6..afaa2718 100644
--- a/libraries/drivers_appserver_factory.rb
+++ b/libraries/drivers_appserver_factory.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 module Drivers
   module Appserver
     class Factory
diff --git a/libraries/drivers_appserver_null.rb b/libraries/drivers_appserver_null.rb
index 7e6e6672..d5a26ca1 100644
--- a/libraries/drivers_appserver_null.rb
+++ b/libraries/drivers_appserver_null.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 module Drivers
   module Appserver
     class Null < Drivers::Appserver::Base
diff --git a/libraries/drivers_appserver_puma.rb b/libraries/drivers_appserver_puma.rb
index efff8a32..d12a4566 100644
--- a/libraries/drivers_appserver_puma.rb
+++ b/libraries/drivers_appserver_puma.rb
@@ -1,10 +1,11 @@
 # frozen_string_literal: true
+
 module Drivers
   module Appserver
     class Puma < Drivers::Appserver::Base
       adapter :puma
       allowed_engines :puma
-      output filter: [:log_requests, :preload_app, :thread_max, :thread_min, :timeout, :worker_processes]
+      output filter: %i[log_requests preload_app thread_max thread_min timeout worker_processes]
 
       def appserver_config
         'puma.rb'
diff --git a/libraries/drivers_appserver_thin.rb b/libraries/drivers_appserver_thin.rb
index 6f7e3274..8390cf6e 100644
--- a/libraries/drivers_appserver_thin.rb
+++ b/libraries/drivers_appserver_thin.rb
@@ -1,10 +1,11 @@
 # frozen_string_literal: true
+
 module Drivers
   module Appserver
     class Thin < Drivers::Appserver::Base
       adapter :thin
       allowed_engines :thin
-      output filter: [:max_connections, :max_persistent_connections, :timeout, :worker_processes]
+      output filter: %i[max_connections max_persistent_connections timeout worker_processes]
 
       def appserver_config
         'thin.yml'
diff --git a/libraries/drivers_appserver_unicorn.rb b/libraries/drivers_appserver_unicorn.rb
index ba9a8eb5..2c799fcb 100644
--- a/libraries/drivers_appserver_unicorn.rb
+++ b/libraries/drivers_appserver_unicorn.rb
@@ -1,11 +1,12 @@
 # frozen_string_literal: true
+
 module Drivers
   module Appserver
     class Unicorn < Drivers::Appserver::Base
       adapter :unicorn
       allowed_engines :unicorn
-      output filter: [
-        :backlog, :delay, :preload_app, :tcp_nodelay, :tcp_nopush, :tries, :timeout, :worker_processes
+      output filter: %i[
+        backlog delay preload_app tcp_nodelay tcp_nopush tries timeout worker_processes
       ]
 
       def appserver_config
diff --git a/libraries/drivers_base.rb b/libraries/drivers_base.rb
index 21eba3e3..e4a244eb 100644
--- a/libraries/drivers_base.rb
+++ b/libraries/drivers_base.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 module Drivers
   class Base
     attr_reader :app, :options, :configuration_data_source
diff --git a/libraries/drivers_db_mysql.rb b/libraries/drivers_db_mysql.rb
index 6f221f99..816f50a2 100644
--- a/libraries/drivers_db_mysql.rb
+++ b/libraries/drivers_db_mysql.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 module Drivers
   module Db
     class Mysql < Base
diff --git a/libraries/drivers_db_postgresql.rb b/libraries/drivers_db_postgresql.rb
index eb3364b7..91464995 100644
--- a/libraries/drivers_db_postgresql.rb
+++ b/libraries/drivers_db_postgresql.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 module Drivers
   module Db
     class Postgresql < Base
diff --git a/libraries/drivers_db_sqlite.rb b/libraries/drivers_db_sqlite.rb
index e4d40343..fd5c1954 100644
--- a/libraries/drivers_db_sqlite.rb
+++ b/libraries/drivers_db_sqlite.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 module Drivers
   module Db
     class Sqlite < Base
diff --git a/libraries/drivers_dsl_defaults.rb b/libraries/drivers_dsl_defaults.rb
index 0d0ecd87..4858ade6 100644
--- a/libraries/drivers_dsl_defaults.rb
+++ b/libraries/drivers_dsl_defaults.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 module Drivers
   module Dsl
     module Defaults
diff --git a/libraries/drivers_dsl_notifies.rb b/libraries/drivers_dsl_notifies.rb
index c7c81e05..df7694cf 100644
--- a/libraries/drivers_dsl_notifies.rb
+++ b/libraries/drivers_dsl_notifies.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 module Drivers
   module Dsl
     module Notifies
diff --git a/libraries/drivers_dsl_output.rb b/libraries/drivers_dsl_output.rb
index f673c96d..f4f54368 100644
--- a/libraries/drivers_dsl_output.rb
+++ b/libraries/drivers_dsl_output.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 module Drivers
   module Dsl
     module Output
diff --git a/libraries/drivers_dsl_packages.rb b/libraries/drivers_dsl_packages.rb
index 9c842368..75dfc8a4 100644
--- a/libraries/drivers_dsl_packages.rb
+++ b/libraries/drivers_dsl_packages.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 module Drivers
   module Dsl
     module Packages
diff --git a/libraries/drivers_framework_base.rb b/libraries/drivers_framework_base.rb
index 83ffa018..7648eb71 100644
--- a/libraries/drivers_framework_base.rb
+++ b/libraries/drivers_framework_base.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 module Drivers
   module Framework
     class Base < Drivers::Base
diff --git a/libraries/drivers_framework_factory.rb b/libraries/drivers_framework_factory.rb
index 5c71bd13..94e1f727 100644
--- a/libraries/drivers_framework_factory.rb
+++ b/libraries/drivers_framework_factory.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 module Drivers
   module Framework
     class Factory
diff --git a/libraries/drivers_framework_hanami.rb b/libraries/drivers_framework_hanami.rb
index a8a764e9..e7440a21 100644
--- a/libraries/drivers_framework_hanami.rb
+++ b/libraries/drivers_framework_hanami.rb
@@ -1,11 +1,12 @@
 # frozen_string_literal: true
+
 module Drivers
   module Framework
     class Hanami < Drivers::Framework::Base
       adapter :hanami
       allowed_engines :hanami
-      output filter: [
-        :migrate, :migration_command, :deploy_environment, :assets_precompile, :assets_precompilation_command
+      output filter: %i[
+        migrate migration_command deploy_environment assets_precompile assets_precompilation_command
       ]
 
       def raw_out
diff --git a/libraries/drivers_framework_null.rb b/libraries/drivers_framework_null.rb
index e7d86a50..355a240f 100644
--- a/libraries/drivers_framework_null.rb
+++ b/libraries/drivers_framework_null.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 module Drivers
   module Framework
     class Null < Drivers::Framework::Base
diff --git a/libraries/drivers_framework_padrino.rb b/libraries/drivers_framework_padrino.rb
index 52061a73..d1e0c424 100644
--- a/libraries/drivers_framework_padrino.rb
+++ b/libraries/drivers_framework_padrino.rb
@@ -1,11 +1,12 @@
 # frozen_string_literal: true
+
 module Drivers
   module Framework
     class Padrino < Drivers::Framework::Base
       adapter :padrino
       allowed_engines :padrino
-      output filter: [
-        :migrate, :migration_command, :deploy_environment, :assets_precompile, :assets_precompilation_command
+      output filter: %i[
+        migrate migration_command deploy_environment assets_precompile assets_precompilation_command
       ]
 
       def raw_out
diff --git a/libraries/drivers_framework_rails.rb b/libraries/drivers_framework_rails.rb
index eccf8d70..6c154379 100644
--- a/libraries/drivers_framework_rails.rb
+++ b/libraries/drivers_framework_rails.rb
@@ -1,12 +1,13 @@
 # frozen_string_literal: true
+
 module Drivers
   module Framework
     class Rails < Drivers::Framework::Base
       adapter :rails
       allowed_engines :rails
-      output filter: [
-        :migrate, :migration_command, :deploy_environment, :assets_precompile, :assets_precompilation_command,
-        :envs_in_console
+      output filter: %i[
+        migrate migration_command deploy_environment assets_precompile assets_precompilation_command
+        envs_in_console
       ]
       packages debian: 'zlib1g-dev', rhel: 'zlib-devel'
       log_paths lambda { |context|
diff --git a/libraries/drivers_scm_base.rb b/libraries/drivers_scm_base.rb
index 447d21fd..66cc1355 100644
--- a/libraries/drivers_scm_base.rb
+++ b/libraries/drivers_scm_base.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 module Drivers
   module Scm
     class Base < Drivers::Base
diff --git a/libraries/drivers_scm_factory.rb b/libraries/drivers_scm_factory.rb
index 5fd012e5..10c8b43c 100644
--- a/libraries/drivers_scm_factory.rb
+++ b/libraries/drivers_scm_factory.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 module Drivers
   module Scm
     class Factory
diff --git a/libraries/drivers_scm_git.rb b/libraries/drivers_scm_git.rb
index f88e9001..66775a26 100644
--- a/libraries/drivers_scm_git.rb
+++ b/libraries/drivers_scm_git.rb
@@ -1,11 +1,12 @@
 # frozen_string_literal: true
+
 module Drivers
   module Scm
     class Git < Drivers::Scm::Base
       adapter Chef::Provider::Git
       allowed_engines :git
       packages :git
-      output filter: [:scm_provider, :repository, :revision, :enable_submodules, :ssh_wrapper, :remove_scm_files]
+      output filter: %i[scm_provider repository revision enable_submodules ssh_wrapper remove_scm_files]
       defaults enable_submodules: true, ssh_wrapper: '/tmp/ssh-git-wrapper.sh'
 
       def before_deploy
diff --git a/libraries/drivers_webserver_apache2.rb b/libraries/drivers_webserver_apache2.rb
index 3f6b747e..1234bb5e 100644
--- a/libraries/drivers_webserver_apache2.rb
+++ b/libraries/drivers_webserver_apache2.rb
@@ -1,13 +1,14 @@
 # frozen_string_literal: true
+
 module Drivers
   module Webserver
     class Apache2 < Drivers::Webserver::Base
       adapter :apache2
       allowed_engines :apache2
-      packages debian: 'apache2', rhel: %w(httpd24 mod24_ssl)
-      output filter: [
-        :dhparams, :keepalive_timeout, :limit_request_body, :log_dir, :log_level, :proxy_timeout,
-        :ssl_for_legacy_browsers, :extra_config, :extra_config_ssl
+      packages debian: 'apache2', rhel: %w[httpd24 mod24_ssl]
+      output filter: %i[
+        dhparams keepalive_timeout limit_request_body log_dir log_level proxy_timeout
+        ssl_for_legacy_browsers extra_config extra_config_ssl
       ]
       notifies :deploy,
                action: :restart, resource: { debian: 'service[apache2]', rhel: 'service[httpd]' }, timer: :delayed
@@ -30,7 +31,7 @@ def raw_out
 
       def setup
         handle_packages
-        enable_modules(%w(expires headers lbmethod_byrequests proxy proxy_balancer proxy_http rewrite ssl))
+        enable_modules(%w[expires headers lbmethod_byrequests proxy proxy_balancer proxy_http rewrite ssl])
         add_sites_available_enabled
         define_service(:start)
       end
diff --git a/libraries/drivers_webserver_base.rb b/libraries/drivers_webserver_base.rb
index b8d341d3..c172cbf6 100644
--- a/libraries/drivers_webserver_base.rb
+++ b/libraries/drivers_webserver_base.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 module Drivers
   module Webserver
     class Base < Drivers::Base
diff --git a/libraries/drivers_webserver_factory.rb b/libraries/drivers_webserver_factory.rb
index 2f20086a..2393fcfa 100644
--- a/libraries/drivers_webserver_factory.rb
+++ b/libraries/drivers_webserver_factory.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 module Drivers
   module Webserver
     class Factory
diff --git a/libraries/drivers_webserver_nginx.rb b/libraries/drivers_webserver_nginx.rb
index ff2f8c0b..1058c237 100644
--- a/libraries/drivers_webserver_nginx.rb
+++ b/libraries/drivers_webserver_nginx.rb
@@ -1,13 +1,14 @@
 # frozen_string_literal: true
+
 module Drivers
   module Webserver
     class Nginx < Drivers::Webserver::Base
       adapter :nginx
       allowed_engines :nginx
-      output filter: [
-        :build_type, :client_body_timeout, :client_header_timeout, :client_max_body_size, :dhparams, :keepalive_timeout,
-        :log_dir, :log_level, :proxy_read_timeout, :proxy_send_timeout, :send_timeout, :ssl_for_legacy_browsers,
-        :extra_config, :extra_config_ssl
+      output filter: %i[
+        build_type client_body_timeout client_header_timeout client_max_body_size dhparams keepalive_timeout
+        log_dir log_level proxy_read_timeout proxy_send_timeout send_timeout ssl_for_legacy_browsers
+        extra_config extra_config_ssl
       ]
       notifies :deploy, action: :restart, resource: 'service[nginx]', timer: :delayed
       notifies :undeploy, action: :restart, resource: 'service[nginx]', timer: :delayed
diff --git a/libraries/drivers_webserver_null.rb b/libraries/drivers_webserver_null.rb
index 196d9f67..3cd34824 100644
--- a/libraries/drivers_webserver_null.rb
+++ b/libraries/drivers_webserver_null.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 module Drivers
   module Webserver
     class Null < Drivers::Webserver::Base
diff --git a/libraries/drivers_worker_base.rb b/libraries/drivers_worker_base.rb
index 24427cf0..c32eb809 100644
--- a/libraries/drivers_worker_base.rb
+++ b/libraries/drivers_worker_base.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 module Drivers
   module Worker
     class Base < Drivers::Base
diff --git a/libraries/drivers_worker_delayed_job.rb b/libraries/drivers_worker_delayed_job.rb
index 08c9bc59..ea60377e 100644
--- a/libraries/drivers_worker_delayed_job.rb
+++ b/libraries/drivers_worker_delayed_job.rb
@@ -1,10 +1,11 @@
 # frozen_string_literal: true
+
 module Drivers
   module Worker
     class DelayedJob < Drivers::Worker::Base
       adapter :delayed_job
       allowed_engines :delayed_job
-      output filter: [:process_count, :syslog, :queues]
+      output filter: %i[process_count syslog queues]
       packages :monit
 
       def after_deploy
diff --git a/libraries/drivers_worker_factory.rb b/libraries/drivers_worker_factory.rb
index 93d543d7..5ddee7f4 100644
--- a/libraries/drivers_worker_factory.rb
+++ b/libraries/drivers_worker_factory.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 module Drivers
   module Worker
     class Factory
diff --git a/libraries/drivers_worker_null.rb b/libraries/drivers_worker_null.rb
index 0423bf92..ec8c0b32 100644
--- a/libraries/drivers_worker_null.rb
+++ b/libraries/drivers_worker_null.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 module Drivers
   module Worker
     class Null < Drivers::Worker::Base
diff --git a/libraries/drivers_worker_resque.rb b/libraries/drivers_worker_resque.rb
index e3d74b07..dece6f92 100644
--- a/libraries/drivers_worker_resque.rb
+++ b/libraries/drivers_worker_resque.rb
@@ -1,10 +1,11 @@
 # frozen_string_literal: true
+
 module Drivers
   module Worker
     class Resque < Drivers::Worker::Base
       adapter :resque
       allowed_engines :resque
-      output filter: [:process_count, :syslog, :workers, :queues]
+      output filter: %i[process_count syslog workers queues]
       packages :monit, debian: 'redis-server', rhel: 'redis'
 
       def configure
diff --git a/libraries/drivers_worker_sidekiq.rb b/libraries/drivers_worker_sidekiq.rb
index 3d962711..4b72d3f9 100644
--- a/libraries/drivers_worker_sidekiq.rb
+++ b/libraries/drivers_worker_sidekiq.rb
@@ -1,10 +1,11 @@
 # frozen_string_literal: true
+
 module Drivers
   module Worker
     class Sidekiq < Drivers::Worker::Base
       adapter :sidekiq
       allowed_engines :sidekiq
-      output filter: [:config, :process_count, :require, :syslog]
+      output filter: %i[config process_count require syslog]
       packages 'monit', debian: 'redis-server', rhel: 'redis'
 
       def configure
diff --git a/libraries/helpers.rb b/libraries/helpers.rb
index a4976aa6..3085bb84 100644
--- a/libraries/helpers.rb
+++ b/libraries/helpers.rb
@@ -100,5 +100,5 @@ def prepare_recipe
 
 def apps_not_included
   return [] if node['applications'].blank?
-  node['deploy'].keys.select { |app_name| !node['applications'].include?(app_name) }
+  node['deploy'].keys.reject { |app_name| node['applications'].include?(app_name) }
 end
diff --git a/metadata.rb b/metadata.rb
index 414c95ab..2b08ad1a 100644
--- a/metadata.rb
+++ b/metadata.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 name 'opsworks_ruby'
 maintainer 'Igor Rzegocki'
 maintainer_email 'igor@rzegocki.pl'
@@ -6,6 +7,7 @@
 description 'Set of chef recipes for OpsWorks based Ruby projects'
 long_description IO.read(File.join(File.dirname(__FILE__), 'README.md'))
 version '1.4.0'
+chef_version '~> 12.0' if respond_to?(:chef_version)
 
 depends 'deployer'
 depends 'chef_nginx'
diff --git a/recipes/configure.rb b/recipes/configure.rb
index 7d3ea690..1d4899b0 100644
--- a/recipes/configure.rb
+++ b/recipes/configure.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 #
 # Cookbook Name:: opsworks_ruby
 # Recipe:: configure
diff --git a/recipes/default.rb b/recipes/default.rb
index fb4972af..9d5191d7 100644
--- a/recipes/default.rb
+++ b/recipes/default.rb
@@ -1,2 +1,3 @@
 # frozen_string_literal: true
+
 include_recipe 'opsworks_ruby::deploy'
diff --git a/recipes/provision.rb b/recipes/provision.rb
index f13ceed5..d18ab74d 100644
--- a/recipes/provision.rb
+++ b/recipes/provision.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 # Used for tests, don't touch!
 
 file '/etc/monit/conf.d/00_httpd.monitrc' do
diff --git a/recipes/setup.rb b/recipes/setup.rb
index a88a3f5e..91b324fb 100644
--- a/recipes/setup.rb
+++ b/recipes/setup.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 #
 # Cookbook Name:: opsworks_ruby
 # Recipe:: setup
@@ -20,13 +21,16 @@
 apt_repository 'apache2' do
   uri 'http://ppa.launchpad.net/ondrej/apache2/ubuntu'
   distribution node['lsb']['codename']
-  components %w(main)
+  components %w[main]
   keyserver 'keyserver.ubuntu.com'
   key 'E5267A6C'
   only_if { node['platform'] == 'ubuntu' }
 end
 
-gem_package 'bundler'
+gem_package 'bundler' do
+  action :install
+end
+
 if node['platform_family'] == 'debian'
   link '/usr/local/bin/bundle' do
     to '/usr/bin/bundle'
diff --git a/recipes/shutdown.rb b/recipes/shutdown.rb
index ca55857c..28ace4cb 100644
--- a/recipes/shutdown.rb
+++ b/recipes/shutdown.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 #
 # Cookbook Name:: opsworks_ruby
 # Recipe:: shutdown
diff --git a/spec/fixtures/aws_opsworks_app.rb b/spec/fixtures/aws_opsworks_app.rb
index b47cab99..fb417f57 100644
--- a/spec/fixtures/aws_opsworks_app.rb
+++ b/spec/fixtures/aws_opsworks_app.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 # rubocop:disable Metrics/MethodLength
 def aws_opsworks_app(override = {})
   item = {
diff --git a/spec/fixtures/aws_opsworks_rds_db_instance.rb b/spec/fixtures/aws_opsworks_rds_db_instance.rb
index c65d6c69..45f1f904 100644
--- a/spec/fixtures/aws_opsworks_rds_db_instance.rb
+++ b/spec/fixtures/aws_opsworks_rds_db_instance.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 # rubocop:disable Metrics/MethodLength
 def aws_opsworks_rds_db_instance(override = {})
   item = {
diff --git a/spec/fixtures/node.rb b/spec/fixtures/node.rb
index e5f8b0d4..88844018 100644
--- a/spec/fixtures/node.rb
+++ b/spec/fixtures/node.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 # rubocop:disable Metrics/MethodLength
 def node(override = {})
   item = {
@@ -14,7 +15,7 @@ def node(override = {})
         global: {
           environment: 'staging',
           create_dirs_before_symlink: %(../shared/test),
-          purge_before_symlink: %w(public/test),
+          purge_before_symlink: %w[public/test],
           symlinks: { 'test' => 'public/test' }
         },
         # database: {
@@ -73,8 +74,8 @@ def node(override = {})
           pids: 'tmp/pids',
           log: 'log'
         },
-        create_dirs_before_symlink: %w(tmp public config ../../shared/cache ../../shared/assets),
-        purge_before_symlink: %w(log tmp/cache tmp/pids public/system public/assets)
+        create_dirs_before_symlink: %w[tmp public config ../../shared/cache ../../shared/assets],
+        purge_before_symlink: %w[log tmp/cache tmp/pids public/system public/assets]
       },
       scm: {
         remove_scm_files: true
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index 1cdbbeec..df379fc6 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 require 'chefspec'
 require 'chefspec/berkshelf'
 
diff --git a/spec/unit/examples/db_parameters_and_connection.rb b/spec/unit/examples/db_parameters_and_connection.rb
index b565c718..ed2d0fe7 100644
--- a/spec/unit/examples/db_parameters_and_connection.rb
+++ b/spec/unit/examples/db_parameters_and_connection.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 RSpec.shared_examples 'db parameters and connection' do |rdbms, options = {}|
   it 'receives and exposes app, node and database bag' do
     driver = described_class.new(
diff --git a/spec/unit/examples/db_validate_adapter_and_engine.rb b/spec/unit/examples/db_validate_adapter_and_engine.rb
index fe5f517a..e73c6884 100644
--- a/spec/unit/examples/db_validate_adapter_and_engine.rb
+++ b/spec/unit/examples/db_validate_adapter_and_engine.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 RSpec.shared_examples 'db validate adapter and engine' do |rdbms|
   context "#{rdbms}: validate adapter and engine" do
     it 'adapter = missing, engine = missing' do
diff --git a/spec/unit/libraries/core_ext_spec.rb b/spec/unit/libraries/core_ext_spec.rb
index 6f50a7a6..df5dd9a1 100644
--- a/spec/unit/libraries/core_ext_spec.rb
+++ b/spec/unit/libraries/core_ext_spec.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'Core extensions' do
diff --git a/spec/unit/libraries/drivers_appserver_factory_spec.rb b/spec/unit/libraries/drivers_appserver_factory_spec.rb
index 99fa4195..9d9d9852 100644
--- a/spec/unit/libraries/drivers_appserver_factory_spec.rb
+++ b/spec/unit/libraries/drivers_appserver_factory_spec.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Drivers::Appserver::Factory do
diff --git a/spec/unit/libraries/drivers_appserver_null_spec.rb b/spec/unit/libraries/drivers_appserver_null_spec.rb
index 5b669a82..e01cfd1b 100644
--- a/spec/unit/libraries/drivers_appserver_null_spec.rb
+++ b/spec/unit/libraries/drivers_appserver_null_spec.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Drivers::Appserver::Null do
diff --git a/spec/unit/libraries/drivers_appserver_puma_spec.rb b/spec/unit/libraries/drivers_appserver_puma_spec.rb
index 4d674b09..2afb50e5 100644
--- a/spec/unit/libraries/drivers_appserver_puma_spec.rb
+++ b/spec/unit/libraries/drivers_appserver_puma_spec.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Drivers::Appserver::Puma do
diff --git a/spec/unit/libraries/drivers_appserver_thin_spec.rb b/spec/unit/libraries/drivers_appserver_thin_spec.rb
index 987b069f..8d7e10e1 100644
--- a/spec/unit/libraries/drivers_appserver_thin_spec.rb
+++ b/spec/unit/libraries/drivers_appserver_thin_spec.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Drivers::Appserver::Thin do
diff --git a/spec/unit/libraries/drivers_appserver_unicorn_spec.rb b/spec/unit/libraries/drivers_appserver_unicorn_spec.rb
index e84fa373..02339bfd 100644
--- a/spec/unit/libraries/drivers_appserver_unicorn_spec.rb
+++ b/spec/unit/libraries/drivers_appserver_unicorn_spec.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Drivers::Appserver::Unicorn do
diff --git a/spec/unit/libraries/drivers_db_factory_spec.rb b/spec/unit/libraries/drivers_db_factory_spec.rb
index d43e14e2..9a26ff33 100644
--- a/spec/unit/libraries/drivers_db_factory_spec.rb
+++ b/spec/unit/libraries/drivers_db_factory_spec.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Drivers::Db::Factory do
diff --git a/spec/unit/libraries/drivers_db_mysql_spec.rb b/spec/unit/libraries/drivers_db_mysql_spec.rb
index aabe4ac2..0f0b5e13 100644
--- a/spec/unit/libraries/drivers_db_mysql_spec.rb
+++ b/spec/unit/libraries/drivers_db_mysql_spec.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 require 'spec_helper'
 require 'unit/examples/db_validate_adapter_and_engine'
 require 'unit/examples/db_parameters_and_connection'
diff --git a/spec/unit/libraries/drivers_db_postgresql_spec.rb b/spec/unit/libraries/drivers_db_postgresql_spec.rb
index 2bc75520..1e3d75a9 100644
--- a/spec/unit/libraries/drivers_db_postgresql_spec.rb
+++ b/spec/unit/libraries/drivers_db_postgresql_spec.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 require 'spec_helper'
 require 'unit/examples/db_validate_adapter_and_engine'
 require 'unit/examples/db_parameters_and_connection'
diff --git a/spec/unit/libraries/drivers_framework_factory_spec.rb b/spec/unit/libraries/drivers_framework_factory_spec.rb
index 4b63844a..4a75f93e 100644
--- a/spec/unit/libraries/drivers_framework_factory_spec.rb
+++ b/spec/unit/libraries/drivers_framework_factory_spec.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Drivers::Framework::Factory do
diff --git a/spec/unit/libraries/drivers_framework_hanami_spec.rb b/spec/unit/libraries/drivers_framework_hanami_spec.rb
index e1f3b173..689fedab 100644
--- a/spec/unit/libraries/drivers_framework_hanami_spec.rb
+++ b/spec/unit/libraries/drivers_framework_hanami_spec.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Drivers::Framework::Hanami do
diff --git a/spec/unit/libraries/drivers_framework_null_spec.rb b/spec/unit/libraries/drivers_framework_null_spec.rb
index e9c15537..77b0ac51 100644
--- a/spec/unit/libraries/drivers_framework_null_spec.rb
+++ b/spec/unit/libraries/drivers_framework_null_spec.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Drivers::Framework::Null do
diff --git a/spec/unit/libraries/drivers_framework_padrino_spec.rb b/spec/unit/libraries/drivers_framework_padrino_spec.rb
index 57375b35..195bf872 100644
--- a/spec/unit/libraries/drivers_framework_padrino_spec.rb
+++ b/spec/unit/libraries/drivers_framework_padrino_spec.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Drivers::Framework::Padrino do
diff --git a/spec/unit/libraries/drivers_framework_rails_spec.rb b/spec/unit/libraries/drivers_framework_rails_spec.rb
index d28f1d38..5c4e46df 100644
--- a/spec/unit/libraries/drivers_framework_rails_spec.rb
+++ b/spec/unit/libraries/drivers_framework_rails_spec.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Drivers::Framework::Rails do
diff --git a/spec/unit/libraries/drivers_scm_factory_spec.rb b/spec/unit/libraries/drivers_scm_factory_spec.rb
index 55ce7e81..7ef8b837 100644
--- a/spec/unit/libraries/drivers_scm_factory_spec.rb
+++ b/spec/unit/libraries/drivers_scm_factory_spec.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Drivers::Scm::Factory do
diff --git a/spec/unit/libraries/drivers_scm_git_spec.rb b/spec/unit/libraries/drivers_scm_git_spec.rb
index e995ec2d..1bc1e89c 100644
--- a/spec/unit/libraries/drivers_scm_git_spec.rb
+++ b/spec/unit/libraries/drivers_scm_git_spec.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Drivers::Scm::Git do
diff --git a/spec/unit/libraries/drivers_webserver_apache2_spec.rb b/spec/unit/libraries/drivers_webserver_apache2_spec.rb
index 18abad0c..92958512 100644
--- a/spec/unit/libraries/drivers_webserver_apache2_spec.rb
+++ b/spec/unit/libraries/drivers_webserver_apache2_spec.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Drivers::Webserver::Apache2 do
diff --git a/spec/unit/libraries/drivers_webserver_factory_spec.rb b/spec/unit/libraries/drivers_webserver_factory_spec.rb
index 5254b2fa..20b9ffb7 100644
--- a/spec/unit/libraries/drivers_webserver_factory_spec.rb
+++ b/spec/unit/libraries/drivers_webserver_factory_spec.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Drivers::Webserver::Factory do
diff --git a/spec/unit/libraries/drivers_webserver_nginx_spec.rb b/spec/unit/libraries/drivers_webserver_nginx_spec.rb
index 07a0d959..e8422da5 100644
--- a/spec/unit/libraries/drivers_webserver_nginx_spec.rb
+++ b/spec/unit/libraries/drivers_webserver_nginx_spec.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Drivers::Webserver::Nginx do
diff --git a/spec/unit/libraries/drivers_webserver_null_spec.rb b/spec/unit/libraries/drivers_webserver_null_spec.rb
index 6ef117eb..670b451d 100644
--- a/spec/unit/libraries/drivers_webserver_null_spec.rb
+++ b/spec/unit/libraries/drivers_webserver_null_spec.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Drivers::Webserver::Null do
diff --git a/spec/unit/libraries/drivers_worker_delayed_job_spec.rb b/spec/unit/libraries/drivers_worker_delayed_job_spec.rb
index 6ddb54fe..c22f23cb 100644
--- a/spec/unit/libraries/drivers_worker_delayed_job_spec.rb
+++ b/spec/unit/libraries/drivers_worker_delayed_job_spec.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Drivers::Worker::DelayedJob do
diff --git a/spec/unit/libraries/drivers_worker_factory_spec.rb b/spec/unit/libraries/drivers_worker_factory_spec.rb
index d9209f8a..a49b96f7 100644
--- a/spec/unit/libraries/drivers_worker_factory_spec.rb
+++ b/spec/unit/libraries/drivers_worker_factory_spec.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Drivers::Worker::Factory do
diff --git a/spec/unit/libraries/drivers_worker_null_spec.rb b/spec/unit/libraries/drivers_worker_null_spec.rb
index 4c4156df..6ce72082 100644
--- a/spec/unit/libraries/drivers_worker_null_spec.rb
+++ b/spec/unit/libraries/drivers_worker_null_spec.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Drivers::Worker::Null do
diff --git a/spec/unit/libraries/drivers_worker_resque_spec.rb b/spec/unit/libraries/drivers_worker_resque_spec.rb
index ec6704dc..941fe957 100644
--- a/spec/unit/libraries/drivers_worker_resque_spec.rb
+++ b/spec/unit/libraries/drivers_worker_resque_spec.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Drivers::Worker::Resque do
diff --git a/spec/unit/libraries/drivers_worker_sidekiq_spec.rb b/spec/unit/libraries/drivers_worker_sidekiq_spec.rb
index 4fc85967..712466a9 100644
--- a/spec/unit/libraries/drivers_worker_sidekiq_spec.rb
+++ b/spec/unit/libraries/drivers_worker_sidekiq_spec.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Drivers::Worker::Sidekiq do
diff --git a/spec/unit/recipes/configure_spec.rb b/spec/unit/recipes/configure_spec.rb
index 29604026..9927f258 100644
--- a/spec/unit/recipes/configure_spec.rb
+++ b/spec/unit/recipes/configure_spec.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 #
 # Cookbook Name:: opsworks_ruby
 # Spec:: configure
diff --git a/spec/unit/recipes/deploy_spec.rb b/spec/unit/recipes/deploy_spec.rb
index 5de7bdca..30e7bd24 100644
--- a/spec/unit/recipes/deploy_spec.rb
+++ b/spec/unit/recipes/deploy_spec.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 #
 # Cookbook Name:: opsworks_ruby
 # Spec:: deploy
@@ -93,8 +94,8 @@
           'log' => 'log',
           'test' => 'public/test'
         },
-        'create_dirs_before_symlink' => %w(tmp public config ../../shared/cache ../../shared/assets ../shared/test),
-        'purge_before_symlink' => %w(log tmp/cache tmp/pids public/system public/assets public/test)
+        'create_dirs_before_symlink' => %w[tmp public config ../../shared/cache ../../shared/assets ../shared/test],
+        'purge_before_symlink' => %w[log tmp/cache tmp/pids public/system public/assets public/test]
       )
 
       expect(chef_run).to run_execute('stop unicorn')
@@ -204,7 +205,7 @@
     chef_run = ChefSpec::SoloRunner.new(platform: 'ubuntu', version: '14.04') do |solo_node|
       solo_node.set['lsb'] = node['lsb']
       solo_node.set['deploy'] = { 'a1' => {}, 'a2' => {}, 'a3' => {} }
-      solo_node.set['applications'] = %w(a1 a2)
+      solo_node.set['applications'] = %w[a1 a2]
     end.converge(described_recipe)
     service = chef_run.service('puma_a1')
 
diff --git a/spec/unit/recipes/setup_spec.rb b/spec/unit/recipes/setup_spec.rb
index 2491545b..282138fe 100644
--- a/spec/unit/recipes/setup_spec.rb
+++ b/spec/unit/recipes/setup_spec.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 #
 # Cookbook Name:: opsworks_ruby
 # Spec:: default
diff --git a/spec/unit/recipes/shutdown_spec.rb b/spec/unit/recipes/shutdown_spec.rb
index 50d78df8..74f6ecfb 100644
--- a/spec/unit/recipes/shutdown_spec.rb
+++ b/spec/unit/recipes/shutdown_spec.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 #
 # Cookbook Name:: opsworks_ruby
 # Spec:: shutdown
diff --git a/spec/unit/recipes/undeploy_spec.rb b/spec/unit/recipes/undeploy_spec.rb
index da014721..83dedb5d 100644
--- a/spec/unit/recipes/undeploy_spec.rb
+++ b/spec/unit/recipes/undeploy_spec.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 #
 # Cookbook Name:: opsworks_ruby
 # Spec:: undeploy
diff --git a/test/integration/all_options/serverspec/all_options_spec.rb b/test/integration/all_options/serverspec/all_options_spec.rb
index fa63ede3..ff4907d5 100644
--- a/test/integration/all_options/serverspec/all_options_spec.rb
+++ b/test/integration/all_options/serverspec/all_options_spec.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'opsworks_ruby::setup' do
diff --git a/test/integration/default/serverspec/default_spec.rb b/test/integration/default/serverspec/default_spec.rb
index 52d57d72..9e80a711 100644
--- a/test/integration/default/serverspec/default_spec.rb
+++ b/test/integration/default/serverspec/default_spec.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'opsworks_ruby::setup' do
diff --git a/test/integration/helpers/serverspec/spec_helper.rb b/test/integration/helpers/serverspec/spec_helper.rb
index a536a0d7..0af9df37 100644
--- a/test/integration/helpers/serverspec/spec_helper.rb
+++ b/test/integration/helpers/serverspec/spec_helper.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 require 'serverspec'
 
 if (/cygwin|mswin|mingw|bccwin|wince|emx/ =~ RUBY_PLATFORM).nil?
diff --git a/test/integration/nullified/serverspec/nullified_spec.rb b/test/integration/nullified/serverspec/nullified_spec.rb
index 3dde1521..08dd16fd 100644
--- a/test/integration/nullified/serverspec/nullified_spec.rb
+++ b/test/integration/nullified/serverspec/nullified_spec.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'opsworks_ruby::setup' do
diff --git a/test/integration/thin_nginx_padrino_delayed_job/serverspec/thin_nginx_padrino_delayed_job_spec.rb b/test/integration/thin_nginx_padrino_delayed_job/serverspec/thin_nginx_padrino_delayed_job_spec.rb
index 5639c88c..e5c44653 100644
--- a/test/integration/thin_nginx_padrino_delayed_job/serverspec/thin_nginx_padrino_delayed_job_spec.rb
+++ b/test/integration/thin_nginx_padrino_delayed_job/serverspec/thin_nginx_padrino_delayed_job_spec.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'opsworks_ruby::setup' do
diff --git a/test/integration/unicorn_apache_hanami_resque/serverspec/unicorn_apache_hanami_resque_spec.rb b/test/integration/unicorn_apache_hanami_resque/serverspec/unicorn_apache_hanami_resque_spec.rb
index 5ea7a0a5..7ac6671e 100644
--- a/test/integration/unicorn_apache_hanami_resque/serverspec/unicorn_apache_hanami_resque_spec.rb
+++ b/test/integration/unicorn_apache_hanami_resque/serverspec/unicorn_apache_hanami_resque_spec.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'opsworks_ruby::setup' do