bind puma to external IP (for remote machine) and change ws endpoint

README.md

@@ -21,9 +21,10 @@ You must have redis installed and running on the default port:6379 (or configure
 
 ## Starting the servers
 
+0. Check `config/puma.rb`
 1. Run `./bin/setup`
 2. Run `./bin/cable`
-3. Open up a separate terminal and run: `./bin/rails server`
+3. Open up a separate terminal and run: `./bin/rails server` (if you want to use config/puma.rb, please run `bundle exec puma`)
 4. One more terminal to run redis server: `redis-server`
 4. Visit `http://localhost:3000`
 

app/assets/javascripts/channels/index.coffee

@@ -3,4 +3,4 @@
 #= require_tree .
 
 @App = {}
-App.cable = Cable.createConsumer 'ws://localhost:28080'
+App.cable = Cable.createConsumer 'ws://' + window.location.hostname + ':28080'

config/puma.rb

@@ -0,0 +1,5 @@
+
+# https://github.com/puma/puma/blob/master/examples/config.rb
+# https://devcenter.heroku.com/articles/deploying-rails-applications-with-the-puma-web-server#config
+
+bind 'tcp://0.0.0.0:9292'