How to use get_dns_servers method in tempest

Best Python code snippet using tempest_python

module_checker.py

Source:module_checker.py

...82		"""83		self.url_list = url_list84		self.sem = asyncio.Semaphore(512)85		self.loop = asyncio.get_event_loop()86		self.dns_servers = get_dns_servers(dns_server_count)87		self.resolver = aiodns.DNSResolver(loop=self.loop, servers=self.dns_servers, timeout=2, tries=2, rotate=True)88		self.cname_results = {}89	async def fetch(self, url):90		async with self.sem:91			try:92				response = await self.resolver.query(url,'CNAME')93				self.cname_results.update({url:response.cname})94				return { "url": url, "cname": response.cname } if response.cname is not None else None95			except Exception as e:96				print("Error: {}".format(e))97				return None98	async def tasker(self):99		tasks = []100		for url in self.url_list:101			task = asyncio.ensure_future(self.fetch(url))102			tasks.append(task)103		responses = asyncio.gather(*tasks, return_exceptions=True, loop=self.loop)104		await responses105		106	def run(self):107		print("DNS servers: {}".format(self.dns_servers))108		future = asyncio.ensure_future(self.tasker())109		self.loop.run_until_complete(future)110		return self.cname_results111def get_dns_servers(count):112	try:113		r = requests.get('https://public-dns.info/nameserver/us.json')114		data = json.loads(r.text)115		servers = [i['ip'] for i in data if (i['reliability'] == 1)]116		servers_prune = servers[:count]117		return(servers_prune)118	except Exception as e:119		print("get_dns_servers error: {}".format(e))...

win_dns_client.py

Source:win_dns_client.py

...18    '''19    if salt.utils.is_windows():20        return 'win_dns_client'21    return (False, "Module win_dns_client: module only works on Windows systems")22def get_dns_servers(interface='Local Area Connection'):23    '''24    Return a list of the configured DNS servers of the specified interface25    CLI Example:26    .. code-block:: bash27        salt '*' win_dns_client.get_dns_servers 'Local Area Connection'28    '''29    # remove any escape characters30    interface = interface.split('\\')31    interface = ''.join(interface)32    with salt.utils.winapi.Com():33        c = wmi.WMI()34        for iface in c.Win32_NetworkAdapter(NetEnabled=True):35            if interface == iface.NetConnectionID:36                iface_config = c.Win32_NetworkAdapterConfiguration(Index=iface.Index).pop()37                try:38                    return list(iface_config.DNSServerSearchOrder)39                except TypeError:40                    return []41    log.debug('Interface "{0}" not found'.format(interface))42    return False43def rm_dns(ip, interface='Local Area Connection'):44    '''45    Remove the DNS server from the network interface46    CLI Example:47    .. code-block:: bash48        salt '*' win_dns_client.rm_dns <ip> <interface>49    '''50    cmd = ['netsh', 'interface', 'ip', 'delete', 'dns', interface, ip, 'validate=no']51    return __salt__['cmd.retcode'](cmd, python_shell=False) == 052def add_dns(ip, interface='Local Area Connection', index=1):53    '''54    Add the DNS server to the network interface55    (index starts from 1)56    Note: if the interface DNS is configured by DHCP, all the DNS servers will57    be removed from the interface and the requested DNS will be the only one58    CLI Example:59    .. code-block:: bash60        salt '*' win_dns_client.add_dns <ip> <interface> <index>61    '''62    servers = get_dns_servers(interface)63    # Return False if could not find the interface64    if servers is False:65        return False66    # Return true if configured67    try:68        if servers[index - 1] == ip:69            return True70    except IndexError:71        pass72    # If configured in the wrong order delete it73    if ip in servers:74        rm_dns(ip, interface)75    cmd = ['netsh', 'interface', 'ip', 'add', 'dns',76           interface, ip, 'index={0}'.format(index), 'validate=no']...

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