Replace thin with puma

Gemfile

@@ -12,7 +12,7 @@ gem 'sidekiq'
 gem 'sidekiq-unique-jobs'
 gem 'sinatra', require: 'sinatra/base'
 gem 'sinatra-contrib'
-gem 'thin'
+gem 'puma'
 gem 'faye-websocket'
 gem 'bugsnag-em'
 

Gemfile.lock

@@ -18,7 +18,6 @@ GEM
     celluloid (0.15.2)
       timers (~> 1.1.0)
     connection_pool (2.0.0)
-    daemons (1.1.9)
     database_cleaner (1.3.0)
     diff-lcs (1.2.5)
     dotenv (0.11.1)
@@ -41,6 +40,8 @@ GEM
     multi_json (1.10.1)
     multi_xml (0.5.5)
     pg (0.17.1)
+    puma (2.9.0)
+      rack (>= 1.1, < 2.0)
     rack (1.5.2)
     rack-protection (1.5.3)
       rack
@@ -85,10 +86,6 @@ GEM
       rack-test
       sinatra (~> 1.4.0)
       tilt (~> 1.3)
-    thin (1.6.2)
-      daemons (>= 1.0.9)
-      eventmachine (>= 1.0.0)
-      rack (>= 1.0.0)
     thor (0.19.1)
     tilt (1.4.1)
     timers (1.1.0)
@@ -106,6 +103,7 @@ DEPENDENCIES
   ffi
   foreman
   pg
+  puma
   rack-test
   rake
   rspec
@@ -115,4 +113,3 @@ DEPENDENCIES
   sidekiq-unique-jobs
   sinatra
   sinatra-contrib
-  thin

Procfile

@@ -1,4 +1,4 @@
-web: bundle exec thin --port $PORT start
+web: bundle exec puma
 block_worker: bundle exec sidekiq -q blocks -c 1 -r ./config/environment.rb
 transaction_worker: bundle exec sidekiq -q transactions -c 1 -r ./config/environment.rb
 peer_manager: bundle exec ruby bin/peer_manager.rb

config.ru

@@ -7,8 +7,6 @@ require "toshi/api"
 require "toshi/websocket_server"
 require 'sidekiq/web'
 
-Faye::WebSocket.load_adapter('thin')
-
 use Rack::CommonLogger
 use Bugsnag::Rack
 

config/puma.rb

@@ -0,0 +1,3 @@
+workers Integer(ENV['PUMA_WORKERS'] || 3)
+threads Integer(ENV['PUMA_MIN_THREADS']  || 1), Integer(ENV['PUMA_MAX_THREADS'] || 16)
+port ENV['PORT'] || 5000