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How to use _sysconfig_network_scripts_dir_exists method in tempest

Best Python code snippet using tempest_python

test_network_v6.py

Source:test_network_v6.py

...137        # NOTE(slaweq): on RHEL based OS ifcfg file for new interface is138        # needed to make IPv6 working on it, so if139        # /etc/sysconfig/network-scripts directory exists ifcfg-%(nic)s file140        # should be added in it141        if self._sysconfig_network_scripts_dir_exists(ssh):142            try:143                ssh.exec_command(144                    'echo -e "DEVICE=%(nic)s\\nNAME=%(nic)s\\nIPV6INIT=yes" | '145                    'sudo tee /etc/sysconfig/network-scripts/ifcfg-%(nic)s; '146                    'sudo nmcli connection reload' % {'nic': nic})147                ssh.exec_command('sudo nmcli connection up %s' % nic)148            except exceptions.SSHExecCommandFailed as e:149                # NOTE(slaweq): Sometimes it can happen that this SSH command150                # will fail because of some error from network manager in151                # guest os.152                # But even then doing ip link set up below is fine and153                # IP address should be configured properly.154                LOG.debug("Error during restarting %(nic)s interface on "155                          "instance. Error message: %(error)s",156                          {'nic': nic, 'error': e})157        ssh.exec_command("sudo ip link set %s up" % nic)158    def _sysconfig_network_scripts_dir_exists(self, ssh):159        return "False" not in ssh.exec_command(160            'test -d /etc/sysconfig/network-scripts/ || echo "False"')161    def _prepare_and_test(self, address6_mode, n_subnets6=1, dualnet=False):162        net_list = self.prepare_network(address6_mode=address6_mode,163                                        n_subnets6=n_subnets6,164                                        dualnet=dualnet)165        sshv4_1, ips_from_api_1, srv1 = self.prepare_server(networks=net_list)166        sshv4_2, ips_from_api_2, srv2 = self.prepare_server(networks=net_list)167        def guest_has_address(ssh, addr):168            return addr in ssh.exec_command("ip address")169        # Turn on 2nd NIC for Cirros when dualnet170        if dualnet:171            _, network_v6 = net_list172            self.turn_nic6_on(sshv4_1, srv1['id'], network_v6['id'])...

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