docs: def get_rules_from_disk():
      ''' Recursively traverse the yara/rules directory for rules '''
  
      # Try to find the yara rules directory relative to the worker
      my_dir = os.path.dirname(os.path.realpath(__file__))
      yara_rule_path = os.path.join(my_dir, 'yara/rules')
      if not os.path.exists(yara_rule_path):
          raise RuntimeError('yara could not find yara rules directory under: %s' % my_dir)
  
      # Okay load in all the rules under the yara rule path
      rules = yara.load_rules(rules_rootpath=yara_rule_path, fast_match=True)
  
      return rules