text: #!/usr/bin/python
  # -*- coding: utf-8 -*-
  
  # (c) 2015, Joseph Callen <jcallen () csc.com>
  #
  # This file is part of Ansible
  #
  # Ansible is free software: you can redistribute it and/or modify
  # it under the terms of the GNU General Public License as published by
  # the Free Software Foundation, either version 3 of the License, or
  # (at your option) any later version.
  #
  # Ansible is distributed in the hope that it will be useful,
  # but WITHOUT ANY WARRANTY; without even the implied warranty of
  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  # GNU General Public License for more details.
  #
  # You should have received a copy of the GNU General Public License
  # along with Ansible.  If not, see <http://www.gnu.org/licenses/>.
  
  DOCUMENTATION = '''
  ---
  module: vmware_dns_config
  short_description: Manage VMware ESXi DNS Configuration
  description:
      - Manage VMware ESXi DNS Configuration
  version_added: 2.0
  author: "Joseph Callen (@jcpowermac)"
  notes:
      - Tested on vSphere 5.5
  requirements:
      - "python >= 2.6"
      - PyVmomi
  options:
      change_hostname_to:
          description:
              - The hostname that an ESXi host should be changed to.
          required: True
      domainname:
          description:
              - The domain the ESXi host should be apart of.
          required: True
      dns_servers:
          description:
              - The DNS servers that the host should be configured to use.
          required: True
  extends_documentation_fragment: vmware.documentation
  '''
  
  EXAMPLES = '''
  # Example vmware_dns_config command from Ansible Playbooks
  - name: Configure ESXi hostname and DNS servers
    local_action:
      module: vmware_dns_config
      hostname: esxi_hostname
      username: root
      password: your_password
      change_hostname_to: esx01
      domainname: foo.org
      dns_servers:
          - 8.8.8.8
          - 8.8.4.4
  '''
  try:
      from pyVmomi import vim, vmodl
      HAS_PYVMOMI = True
  except ImportError:
      HAS_PYVMOMI = False
  
  
  def configure_dns(host_system, hostname, domainname, dns_servers):
  
      changed = False
      host_config_manager = host_system.configManager
      host_network_system = host_config_manager.networkSystem
      config = host_network_system.dnsConfig
  
      config.dhcp = False
  
      if config.address != dns_servers:
          config.address = dns_servers
          changed = True
      if config.domainName != domainname:
          config.domainName = domainname
          changed = True
      if config.hostName != hostname:
          config.hostName = hostname
          changed = True
      if changed:
          host_network_system.UpdateDnsConfig(config)
  
      return changed
  
  
  def main():
  
      argument_spec = vmware_argument_spec()
      argument_spec.update(dict(change_hostname_to=dict(required=True, type='str'),
                           domainname=dict(required=True, type='str'),
                           dns_servers=dict(required=True, type='list')))
  
      module = AnsibleModule(argument_spec=argument_spec, supports_check_mode=False)
  
      if not HAS_PYVMOMI:
          module.fail_json(msg='pyvmomi is required for this module')
  
      change_hostname_to = module.params['change_hostname_to']
      domainname = module.params['domainname']
      dns_servers = module.params['dns_servers']
      try:
          content = connect_to_api(module)
          host = get_all_objs(content, [vim.HostSystem])
          if not host:
              module.fail_json(msg="Unable to locate Physical Host.")
          host_system = host.keys()[0]
          changed = configure_dns(host_system, change_hostname_to, domainname, dns_servers)
          module.exit_json(changed=changed)
      except vmodl.RuntimeFault as runtime_fault:
          module.fail_json(msg=runtime_fault.msg)
      except vmodl.MethodFault as method_fault:
          module.fail_json(msg=method_fault.msg)
      except Exception as e:
          module.fail_json(msg=str(e))
  
  
  from ansible.module_utils.vmware import *
  from ansible.module_utils.basic import *
  
  if __name__ == '__main__':
      main()
  