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How to use _get_proxy_client_info method in tempest

Best Python code snippet using tempest_python

ssh.py

Source:ssh.py

...107                    LOG.exception("Failed to establish authenticated ssh"108                                  " connection to %s@%s after %d attempts. "109                                  "Proxy client: %s",110                                  self.username, self.host, attempts,111                                  self._get_proxy_client_info())112                    raise exceptions.SSHTimeout(host=self.host,113                                                user=self.username,114                                                password=self.password)115                bsleep += backoff116                attempts += 1117                LOG.warning("Failed to establish authenticated ssh"118                            " connection to %s@%s (%s). Number attempts: %s."119                            " Retry after %d seconds.",120                            self.username, self.host, e, attempts, bsleep)121                time.sleep(bsleep)122    def _is_timed_out(self, start_time):123        return (time.time() - self.timeout) > start_time124    @staticmethod125    def _can_system_poll():126        return hasattr(select, 'poll')127    def exec_command(self, cmd, encoding="utf-8"):128        """Execute the specified command on the server129        Note that this method is reading whole command outputs to memory, thus130        shouldn't be used for large outputs.131        :param str cmd: Command to run at remote server.132        :param str encoding: Encoding for result from paramiko.133                             Result will not be decoded if None.134        :returns: data read from standard output of the command.135        :raises: SSHExecCommandFailed if command returns nonzero136                 status. The exception contains command status stderr content.137        :raises: TimeoutException if cmd doesn't end when timeout expires.138        """139        ssh = self._get_ssh_connection()140        transport = ssh.get_transport()141        with transport.open_session() as channel:142            channel.fileno()  # Register event pipe143            channel.exec_command(cmd)144            channel.shutdown_write()145            # If the executing host is linux-based, poll the channel146            if self._can_system_poll():147                out_data_chunks = []148                err_data_chunks = []149                poll = select.poll()150                poll.register(channel, select.POLLIN)151                start_time = time.time()152                while True:153                    ready = poll.poll(self.channel_timeout)154                    if not any(ready):155                        if not self._is_timed_out(start_time):156                            continue157                        raise exceptions.TimeoutException(158                            "Command: '{0}' executed on host '{1}'.".format(159                                cmd, self.host))160                    if not ready[0]:  # If there is nothing to read.161                        continue162                    out_chunk = err_chunk = None163                    if channel.recv_ready():164                        out_chunk = channel.recv(self.buf_size)165                        out_data_chunks += out_chunk,166                    if channel.recv_stderr_ready():167                        err_chunk = channel.recv_stderr(self.buf_size)168                        err_data_chunks += err_chunk,169                    if not err_chunk and not out_chunk:170                        break171                out_data = b''.join(out_data_chunks)172                err_data = b''.join(err_data_chunks)173            # Just read from the channels174            else:175                out_file = channel.makefile('rb', self.buf_size)176                err_file = channel.makefile_stderr('rb', self.buf_size)177                out_data = out_file.read()178                err_data = err_file.read()179            if encoding:180                out_data = out_data.decode(encoding)181                err_data = err_data.decode(encoding)182            exit_status = channel.recv_exit_status()183        ssh.close()184        if 0 != exit_status:185            raise exceptions.SSHExecCommandFailed(186                command=cmd, exit_status=exit_status,187                stderr=err_data, stdout=out_data)188        return out_data189    def test_connection_auth(self):190        """Raises an exception when we can not connect to server via ssh."""191        connection = self._get_ssh_connection()192        connection.close()193    def _get_proxy_channel(self):194        conn = self.proxy_client._get_ssh_connection()195        # Keep a reference to avoid g/c196        # https://github.com/paramiko/paramiko/issues/440197        self._proxy_conn = conn198        transport = conn.get_transport()199        chan = transport.open_session()200        cmd = 'nc %s %s' % (self.host, self.port)201        chan.exec_command(cmd)202        return chan203    def _get_proxy_client_info(self):204        if not self.proxy_client:205            return 'no proxy client'206        nested_pclient = self.proxy_client._get_proxy_client_info()207        return ('%(username)s@%(host)s:%(port)s, nested proxy client: '208                '%(nested_pclient)s' % {'username': self.proxy_client.username,209                                        'host': self.proxy_client.host,210                                        'port': self.proxy_client.port,...

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