fixed

devops-service/providers/provider_factory.rb

@@ -1,7 +1,9 @@
+require "sinatra"
+
 module Provider
   class ProviderFactory
 
-    @@providers = nil
+    @@providers = {}
 
     def self.providers
       @@providers.keys
@@ -14,14 +16,10 @@ module Provider
     end
 
     def self.all
-      if @@providers.nil?
-        ProviderFactory.init
-      end
       @@providers.values
     end
 
     def self.init conf
-      @@providers = {}
       ["ec2", "openstack", "static"].each do |p|
         begin
           require "providers/#{p}"