code: def gatherkeys(args):
      
      oldmask = os.umask(0o77)
      try:
          try:
              tmpd = tempfile.mkdtemp()
              LOG.info("Storing keys in temp directory %s", tmpd)
              sucess = False
              for host in args.mon:
                  sucess = gatherkeys_with_mon(args, host, tmpd)
                  if sucess:
                      break
              if not sucess:
                  LOG.error("Failed to connect to host:%s" ,', '.join(args.mon))
                  raise RuntimeError('Failed to connect any mon')
              had_error = False
              date_string = time.strftime("%Y%m%d%H%M%S")
              for keytype in ["admin", "mds", "mgr", "mon", "osd", "rgw"]:
                  filename = keytype_path_to(args, keytype)
                  tmp_path = os.path.join(tmpd, filename)
                  if not os.path.exists(tmp_path):
                      LOG.error("No key retrived for '%s'" , keytype)
                      had_error = True
                      continue
                  if not os.path.exists(filename):
                      LOG.info("Storing %s" % (filename))
                      shutil.move(tmp_path, filename)
                      continue
                  if _keyring_equivalent(tmp_path, filename):
                      LOG.info("keyring '%s' already exists" , filename)
                      continue
                  backup_keyring = "%s-%s" % (filename, date_string)
                  LOG.info("Replacing '%s' and backing up old key as '%s'", filename, backup_keyring)
                  shutil.copy(filename, backup_keyring)
                  shutil.move(tmp_path, filename)
              if had_error:
                  raise RuntimeError('Failed to get all key types')
          finally:
              LOG.info("Destroy temp directory %s" %(tmpd))
              shutil.rmtree(tmpd)
      finally:
          os.umask(oldmask)
docs: Gather keys from any mon and store in current working directory.
  
      Backs up keys from previous installs and stores new keys.