Unbound bindings from Puma port configuration

Author: bert-mccutchen

Gemfile.lock

@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    rails-nginx (1.0.0.pre.beta.5)
+    rails-nginx (1.0.0.pre.beta.6)
       puma
       rails
       ruby-nginx (>= 1.0.0.pre.beta.4)

README.md

@@ -67,32 +67,31 @@ gem install rails-nginx
 
 Add the Puma plugin to your configuration, and limit it to your development environment.
 
-**config/puma.rb**
+**File: config/puma.rb**
 ```ruby
 plugin :rails_nginx if Rails.env.development?
 ```
 
-> [!IMPORTANT]
-> **If you skip this, NGINX reverse proxy will have a randomized port while Puma will not. The reverse proxy will not work.**
->
-> Puma's `port` configuration option makes it impossible for Rails NGINX to assign a random open port back to Puma.
->
-> To fix this issue, simply remove it from our Puma configuration.
+Then simply start Rails!
+
+**Terminal**
+```
+> ./bin/rails
+```
+
+OR
+
+```
+> ./bin/rails -p 3001
+```
+
+> [!NOTE]
+> Rails NGINX will clear all port bindings and assign back to Puma a random open port, or the provided Rails port parameter.
 >
-> **config/puma.rb**
+> The following Puma configuration will be **ignored**.
 > ```ruby
 > port ENV.fetch("PORT") { 3000 }
 > ```
->
-> OR simply disable it in your development environment:
-> ```ruby
-> port ENV.fetch("PORT") { 3000 } unless Rails.env.development?
-> ```
->
-> OR always manually provide an open port when starting Rails:
-> ```
-> ./bin/rails server -p 3001
-> ```
 
 ### Default Configuration
 By default, Rails NGINX will configure [Ruby NGINX](https://github.com/bert-mccutchen/ruby-nginx) with the following options. For the examples, pretend I have an application called "HelloWorld".

lib/puma/plugin/rails_nginx.rb

@@ -30,6 +30,7 @@ def rails_port!
   def config(puma_config)
     rails_port!
 
+    puma_config.clear_binds!
     puma_config.port Rails::Nginx.port
 
     puma_config.on_booted do

lib/rails/nginx/version.rb

@@ -2,6 +2,6 @@
 
 module Rails
   module Nginx
-    VERSION = "1.0.0-beta.5"
+    VERSION = "1.0.0-beta.6"
   end
 end

spec/support/dummy_server.rb

@@ -2,7 +2,7 @@
 
 ENV["SKIP_PROMPT"] = "true"
 APP_PATH = File.expand_path("../dummy/config/application", __dir__)
-ARGV = ["server", "-p", "3001"]
+ARGV = ["server"]
 
 class DummyServer
   include Singleton