text: #!/usr/bin/env python
  # -*- coding: utf-8 -*-
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  # http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  import os
  from airflow import configuration
  from airflow.bin.cli import CLIFactory
  
  if __name__ == '__main__':
  
      if configuration.get("core", "security") == 'kerberos':
          os.environ['KRB5CCNAME'] = configuration.get('kerberos', 'ccache')
          os.environ['KRB5_KTNAME'] = configuration.get('kerberos', 'keytab')
  
      parser = CLIFactory.get_parser()
      args = parser.parse_args()
      args.func(args)
  