How to use _hotplug_server method in tempest

Best Python code snippet using tempest_python

test_network_basic_ops.py

Source:test_network_basic_ops.py

...175        self.new_net = self._create_network(tenant_id=self.tenant_id)176        self.new_subnet = self._create_subnet(177            network=self.new_net,178            gateway_ip=None)179    def _hotplug_server(self):180        old_floating_ip, server = self.floating_ip_tuple181        ip_address = old_floating_ip.floating_ip_address182        private_key = self._get_server_key(server)183        ssh_client = self.get_remote_client(ip_address,184                                            private_key=private_key)185        old_nic_list = self._get_server_nics(ssh_client)186        # get a port from a list of one item187        port_list = self._list_ports(device_id=server['id'])188        self.assertEqual(1, len(port_list))189        old_port = port_list[0]190        _, interface = self.interface_client.create_interface(191            server=server['id'],192            network_id=self.new_net.id)193        self.addCleanup(self.network_client.wait_for_resource_deletion,194                        'port',195                        interface['port_id'])196        self.addCleanup(self.delete_wrapper,197                        self.interface_client.delete_interface,198                        server['id'], interface['port_id'])199        def check_ports():200            self.new_port_list = [port for port in201                                  self._list_ports(device_id=server['id'])202                                  if port != old_port]203            return len(self.new_port_list) == 1204        if not test.call_until_true(check_ports, CONF.network.build_timeout,205                                    CONF.network.build_interval):206            raise exceptions.TimeoutException("No new port attached to the "207                                              "server in time (%s sec) !"208                                              % CONF.network.build_timeout)209        new_port = net_resources.DeletablePort(client=self.network_client,210                                               **self.new_port_list[0])211        def check_new_nic():212            new_nic_list = self._get_server_nics(ssh_client)213            self.diff_list = [n for n in new_nic_list if n not in old_nic_list]214            return len(self.diff_list) == 1215        if not test.call_until_true(check_new_nic, CONF.network.build_timeout,216                                    CONF.network.build_interval):217            raise exceptions.TimeoutException("Interface not visible on the "218                                              "guest after %s sec"219                                              % CONF.network.build_timeout)220        num, new_nic = self.diff_list[0]221        ssh_client.assign_static_ip(nic=new_nic,222                                    addr=new_port.fixed_ips[0]['ip_address'])223        ssh_client.turn_nic_on(nic=new_nic)224    def _get_server_nics(self, ssh_client):225        reg = re.compile(r'(?P<num>\d+): (?P<nic_name>\w+):')226        ipatxt = ssh_client.get_ip_list()227        return reg.findall(ipatxt)228    def _check_network_internal_connectivity(self, network):229        """230        via ssh check VM internal connectivity:231        - ping internal gateway and DHCP port, implying in-tenant connectivity232        pinging both, because L3 and DHCP agents might be on different nodes233        """234        floating_ip, server = self.floating_ip_tuple235        # get internal ports' ips:236        # get all network ports in the new network237        internal_ips = (p['fixed_ips'][0]['ip_address'] for p in238                        self._list_ports(tenant_id=server['tenant_id'],239                                         network_id=network.id)240                        if p['device_owner'].startswith('network'))241        self._check_server_connectivity(floating_ip, internal_ips)242    def _check_network_external_connectivity(self):243        """244        ping public network default gateway to imply external connectivity245        """246        if not CONF.network.public_network_id:247            msg = 'public network not defined.'248            LOG.info(msg)249            return250        subnet = self._list_subnets(251            network_id=CONF.network.public_network_id)252        self.assertEqual(1, len(subnet), "Found %d subnets" % len(subnet))253        external_ips = [subnet[0]['gateway_ip']]254        self._check_server_connectivity(self.floating_ip_tuple.floating_ip,255                                        external_ips)256    def _check_server_connectivity(self, floating_ip, address_list):257        ip_address = floating_ip.floating_ip_address258        private_key = self._get_server_key(self.floating_ip_tuple.server)259        ssh_source = self._ssh_to_server(ip_address, private_key)260        for remote_ip in address_list:261            try:262                self.assertTrue(self._check_remote_connectivity(ssh_source,263                                                                remote_ip),264                                "Timed out waiting for %s to become "265                                "reachable" % remote_ip)266            except Exception:267                LOG.exception("Unable to access {dest} via ssh to "268                              "floating-ip {src}".format(dest=remote_ip,269                                                         src=floating_ip))270                debug.log_ip_ns()271                raise272    @test.attr(type='smoke')273    @test.services('compute', 'network')274    def test_network_basic_ops(self):275        """276        For a freshly-booted VM with an IP address ("port") on a given277            network:278        - the Tempest host can ping the IP address.  This implies, but279         does not guarantee (see the ssh check that follows), that the280         VM has been assigned the correct IP address and has281         connectivity to the Tempest host.282        - the Tempest host can perform key-based authentication to an283         ssh server hosted at the IP address.  This check guarantees284         that the IP address is associated with the target VM.285        - the Tempest host can ssh into the VM via the IP address and286         successfully execute the following:287         - ping an external IP address, implying external connectivity.288         - ping an external hostname, implying that dns is correctly289           configured.290         - ping an internal IP address, implying connectivity to another291           VM on the same network.292        - detach the floating-ip from the VM and verify that it becomes293        unreachable294        - associate detached floating ip to a new VM and verify connectivity.295        VMs are created with unique keypair so connectivity also asserts that296        floating IP is associated with the new VM instead of the old one297        """298        self._setup_network_and_servers()299        self._check_public_network_connectivity(should_connect=True)300        self._check_network_internal_connectivity(network=self.network)301        self._check_network_external_connectivity()302        self._disassociate_floating_ips()303        self._check_public_network_connectivity(should_connect=False,304                                                msg="after disassociate "305                                                    "floating ip")306        self._reassociate_floating_ips()307        self._check_public_network_connectivity(should_connect=True,308                                                msg="after re-associate "309                                                    "floating ip")310    @testtools.skipUnless(CONF.compute_feature_enabled.interface_attach,311                          'NIC hotplug not available')312    @test.attr(type='smoke')313    @test.services('compute', 'network')314    def test_hotplug_nic(self):315        """316        1. create a new network, with no gateway (to prevent overwriting VM's317            gateway)318        2. connect VM to new network319        3. set static ip and bring new nic up320        4. check VM can ping new network dhcp port321        """322        self._setup_network_and_servers()323        self._check_public_network_connectivity(should_connect=True)324        self._create_new_network()325        self._hotplug_server()...

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