allow rails to be loaded in fix auth

When objects are serialized into yaml blobs in tables,
we need to load our whole environment to handle the deserialization

This typically happens with miq_requests.options

tools/fix_auth/cli.rb

@@ -25,6 +25,7 @@ def parse(args, env = {})
         opt :databaseyml, "Rewrite database.yml", :type => :boolean, :short => "y", :default => false
         opt :db,       "Upgrade database",  :type => :boolean, :short => 'x', :default => false
         opt :legacy_key, "Legacy Key",      :type => :string, :short => "K"
+        opt :rails,      "Load rails for those stuborn migrations", :type => :boolean, :short => nil, :default => false
       end
 
       options[:database] = args.first || "vmdb_production"

tools/fix_auth/fix_auth.rb

@@ -69,6 +69,10 @@ def fix_database_yml
       FixDatabaseYml.run({:hardcode => options[:password]}.merge(run_options))
     end
 
+    def load_rails
+      require File.expand_path("../../../config/environment.rb", __FILE__)
+    end
+
     def set_passwords
       MiqPassword.key_root = cert_dir if cert_dir
       MiqPassword.add_legacy_key("v0_key", :v0)
@@ -83,6 +87,7 @@ def run
 
       generate_password if options[:key]
       fix_database_yml if options[:databaseyml]
+      load_rails if options[:rails]
       fix_database_passwords if options[:db]
     end
   end