text: #!/usr/bin/env python
  
  """
  * *******************************************************
  * Copyright (c) VMware, Inc. 2020. All Rights Reserved.
  * SPDX-License-Identifier: MIT
  * *******************************************************
  *
  * DISCLAIMER. THIS PROGRAM IS PROVIDED TO YOU "AS IS" WITHOUT
  * WARRANTIES OR CONDITIONS OF ANY KIND, WHETHER ORAL OR WRITTEN,
  * EXPRESS OR IMPLIED. THE AUTHOR SPECIFICALLY DISCLAIMS ANY IMPLIED
  * WARRANTIES OR CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY,
  * NON-INFRINGEMENT AND FITNESS FOR A PARTICULAR PURPOSE.
  """
  
  __author__ = 'VMware, Inc.'
  __vcenter_version__ = '7.0+'
  
  import argparse
  
  from vmware.vapi.vsphere.client import create_vsphere_client
  import requests
  from com.vmware.vcenter.certificate_management.vcenter_client import TrustedRootChains
  from samples.vsphere.common import (sample_cli, sample_util)
  
  """
  Description: Demonstrates the retrieval of the TRUSTED ROOT CHAIN corresponding to the provided alias
  
  Sample Prerequisites:
  - The user invoking the API should have the System.Read privilege
  """
  
  parser = sample_cli.build_arg_parser()
  
  parser.add_argument('--certalias',
                      help='The alias of the certificate chain which is to be retrieved.'
                           'All the published certificate chains will be retrieved if not provided')
  
  args = sample_util.process_cli_args(parser.parse_args())
  
  session = requests.session()
  session.verify = False if args.skipverification else True
  
  # Login to vCenter
  vsphere_client = create_vsphere_client(server=args.server,
                                         username=args.username,
                                         password=args.password,
                                         session=session)
  
  cert_alias = args.certalias
  
  if cert_alias is not None:
      print('Retrieving the certificate chain corresponding to the alias ' + cert_alias)
      print(vsphere_client.vcenter.certificate_management.vcenter.TrustedRootChains.get(cert_alias))
  else:
      print('Retrieving the all the published certificate chains imported to vCenter')
      cert_aliases = vsphere_client.vcenter.certificate_management.vcenter.TrustedRootChains.list()
      for alias in cert_aliases:
          print('Retrieving the certificate chain for the alias ' + alias.chain)
          print(vsphere_client.vcenter.certificate_management.vcenter.TrustedRootChains.get(alias.chain))
  