How to use _renew_lease_dhclient method in tempest

Best Python code snippet using tempest_python

remote_client.py

Source:remote_client.py

...122        pid = self.exec_command('cat {path}{nic}.pid'.123                                format(path=file_path, nic=nic_name))124        pid = pid.strip()125        self.send_signal(pid, 'USR1')126    def _renew_lease_dhclient(self, fixed_ip=None):127        """Renews DHCP lease via dhclient client. """128        cmd = "sudo /sbin/dhclient -r && sudo /sbin/dhclient"129        self.exec_command(cmd)130    def renew_lease(self, fixed_ip=None):131        """Wrapper method for renewing DHCP lease via given client132        Supporting:133        * udhcpc134        * dhclient135        """136        # TODO(yfried): add support for dhcpcd137        suported_clients = ['udhcpc', 'dhclient']138        dhcp_client = CONF.scenario.dhcp_client139        if dhcp_client not in suported_clients:140            raise exceptions.InvalidConfiguration('%s DHCP client unsupported'...

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