docs: def generate_ssh(self, server, args, configure):
          """
          异步同时执行SSH生成 generate ssh
          :param server:
          :param args:
          :param configure:
          :return:
          """
          self.reset_server_env(server, configure)
  
          # chmod project root owner
          sudo('chown {user}:{user} -R {path}'.format(
              user=configure[server]['user'],
              path=bigdata_conf.project_root
          ))
  
          # generate ssh key
          if not exists('~/.ssh/id_rsa.pub'):
              run('ssh-keygen -t rsa -P "" -f ~/.ssh/id_rsa')