Added puma

Gemfile

@@ -45,3 +45,6 @@ group :development do
   gem 'spring'
 end
 
+group :production do
+  gem 'puma'
+end

Gemfile.lock

@@ -74,6 +74,7 @@ GEM
     multi_json (1.11.2)
     nokogiri (1.6.7.2)
       mini_portile2 (~> 2.0.0.rc2)
+    puma (3.1.0)
     rack (1.6.4)
     rack-test (0.6.3)
       rack (>= 1.0)
@@ -151,6 +152,7 @@ DEPENDENCIES
   coffee-rails (~> 4.1.0)
   jbuilder (~> 2.0)
   jquery-rails
+  puma
   rails (= 4.2.5.1)
   sass-rails (~> 5.0)
   sdoc (~> 0.4.0)

config/puma.rb

@@ -0,0 +1,29 @@
+# Change to match your CPU core count
+workers 1
+
+# Min and Max threads per worker
+threads 1, 6
+
+app_dir = File.expand_path("../..", __FILE__)
+shared_dir = "#{app_dir}/shared"
+
+# Default to production
+rails_env = ENV['RAILS_ENV'] || "production"
+environment rails_env
+
+# Set up socket location
+bind "unix://#{shared_dir}/sockets/puma.sock"
+
+# Logging
+stdout_redirect "#{shared_dir}/log/puma.stdout.log", "#{shared_dir}/log/puma.stderr.log", true
+
+# Set master PID and state locations
+pidfile "#{shared_dir}/pids/puma.pid"
+state_path "#{shared_dir}/pids/puma.state"
+activate_control_app
+
+on_worker_boot do
+  require "active_record"
+  ActiveRecord::Base.connection.disconnect! rescue ActiveRecord::ConnectionNotEstablished
+  ActiveRecord::Base.establish_connection(YAML.load_file("#{app_dir}/config/database.yml")[rails_env])
+end