You can issue the chmod after a code update.
You should have a task (or you can create it) called after_code_update, that automatically runs after it updates the code into a releases dir -- where you can issue the chmod command:
desc "Tasks to execute after code update" task :after_update_code, :roles => [:app, :db] do # fix permissions run "chmod +x #{release_path}/script/spawner" run "chmod +x #{release_path}/script/spawner" end
hope that helps,