pg update and config.hosts

Gemfile

@@ -60,3 +60,7 @@ end
 group :mysql do
   gem "mysql2"
 end
+
+group :openshift do
+  gem "pg"
+end

config/environments/development.rb

@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 Railsgoat::Application.configure do
   # Settings specified here will take precedence over those in config/application.rb
-
+  config.hosts << '.svc.cluster.local'
   # In the development environment your application's code is reloaded on
   # every request. This slows down response time but is perfect for development
   # since you don't have to restart the web server when you make code changes.