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How to use wait_for_ssh method in tempest

Best Python code snippet using tempest_python

test_quickstart.py

Source:test_quickstart.py

...178    os.chdir(origdir)179    subprocess.call(['VBoxManage', 'controlvm', 'ploy-demo', 'poweroff'])180    time.sleep(5)181    subprocess.call(['VBoxManage', 'unregistervm', '--delete', 'ploy-demo'])182def wait_for_ssh(host, port, timeout=90):183    from contextlib import closing184    import socket185    while timeout > 0:186        with closing(socket.socket(socket.AF_INET, socket.SOCK_STREAM)) as s:187            try:188                s.settimeout(1)189                if s.connect_ex((host, port)) == 0:190                    if s.recv(128).startswith(b'SSH-2'):191                        return192            except socket.timeout:193                timeout -= 1194                continue195        time.sleep(1)196        timeout -= 1...

fabfile.py

Source:fabfile.py

...46        return f_retry  # true decorator -> decorated function47    return deco_retry  # @retry(arg[, ...]) -> true decorator48# end retry49@retry(delay=5, tries=20)50def wait_for_ssh(timeout=5):51    ip = env.host52    try:53        client = paramiko.SSHClient()54        client.set_missing_host_key_policy(paramiko.AutoAddPolicy())55        client.connect(ip, username=env.user,56                       password=env.password, timeout=timeout)57        # In some virtual clusters, client.connect passed, but later SSH cmds58        # failed. So, better run a ssh cmd here itself before proceeding59        client.exec_command('ls > /dev/null')60        client.close()61    except Exception, e:62        client.close()63        return "False"64    print "True"...

ssh.py

Source:ssh.py

...27            user=self.user,28            connect_kwargs={'pkey': self.private_key},29        )30        logger.info(f'Waiting for SSH to become available on {self.host}...')31        self.wait_for_ssh(default_timer())32        return self.connection33    def __exit__(self, type, value, traceback):34        logger.info(f'Closing SSH connection to {self.host}...')35        self.connection.close()36    def wait_for_ssh(self, start):37        try:38            self.connection.open()39        except NoValidConnectionsError:40            # Error after 5 minutes. Otherwise retry.41            now = default_timer()42            if now - start > 300:43                raise44            sleep(5)...

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