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How to use hyperv_remove_nested_vm method in lisa

Best Python code snippet using lisa_python

nestedperf.py

Source:nestedperf.py

...397            )398        finally:399            # cleanup server400            try:401                hyperv_remove_nested_vm(server_l1, "server_l2")402            except Exception as e:403                log.debug(f"Failed to clean up server vm: {e}")404                server_l1.mark_dirty()405            # cleanup client406            try:407                hyperv_remove_nested_vm(client_l1, "client_l2")408            except Exception as e:409                log.debug(f"Failed to clean up client vm: {e}")410                client_l1.mark_dirty()411    @TestCaseMetadata(412        description="""413        This script runs netperf test on two nested VMs on different L1 guests414        connected with NAT415        """,416        priority=3,417        timeout=_TIME_OUT,418        requirement=simple_requirement(419            min_count=2,420            network_interface=schema.NetworkInterfaceOptionSettings(421                nic_count=search_space.IntRange(min=2),422            ),423            disk=schema.DiskOptionSettings(424                data_disk_count=search_space.IntRange(min=1),425                data_disk_size=search_space.IntRange(min=12),426            ),427        ),428    )429    def perf_nested_kvm_netperf_pps_nat(430        self,431        result: TestResult,432        variables: Dict[str, Any],433        log: Logger,434    ) -> None:435        environment = result.environment436        assert environment, "fail to get environment from testresult"437        server_l1 = cast(RemoteNode, environment.nodes[0])438        client_l1 = cast(RemoteNode, environment.nodes[1])439        # parse nested image variables440        (441            nested_image_username,442            nested_image_password,443            _,444            nested_image_url,445        ) = parse_nested_image_variables(variables)446        try:447            # setup nested vm on server in NAT configuration448            server_l2 = self._linux_setup_nat(449                node=server_l1,450                nested_vm_name="server_l2",451                guest_username=nested_image_username,452                guest_password=nested_image_password,453                guest_port=self._SERVER_HOST_FWD_PORT,454                guest_image_url=nested_image_url,455                guest_internal_ip=self._SERVER_IP_ADDR,456                guest_default_nic=self._NIC_NAME,457                bridge_name=self._BR_NAME,458                bridge_network=self._BR_NETWORK,459                bridge_cidr=self._BR_CIDR,460                bridge_gateway=self._BR_GATEWAY,461            )462            # setup nested vm on client in NAT configuration463            client_l2 = self._linux_setup_nat(464                node=client_l1,465                nested_vm_name="client_l2",466                guest_username=nested_image_username,467                guest_password=nested_image_password,468                guest_port=self._CLIENT_HOST_FWD_PORT,469                guest_image_url=nested_image_url,470                guest_internal_ip=self._CLIENT_IP_ADDR,471                guest_default_nic=self._NIC_NAME,472                bridge_name=self._BR_NAME,473                bridge_network=self._BR_NETWORK,474                bridge_cidr=self._BR_CIDR,475                bridge_gateway=self._BR_GATEWAY,476            )477            # run netperf test478            perf_tcp_pps(result, "singlepps", server_l2, client_l2)479        finally:480            self._linux_cleanup_nat(server_l1, self._BR_NAME, log)481            self._linux_cleanup_nat(client_l1, self._BR_NAME, log)482    def _linux_setup_nat(483        self,484        node: RemoteNode,485        nested_vm_name: str,486        guest_username: str,487        guest_password: str,488        guest_port: int,489        guest_image_url: str,490        guest_internal_ip: str,491        guest_default_nic: str,492        bridge_name: str,493        bridge_network: str,494        bridge_cidr: str,495        bridge_gateway: str,496    ) -> RemoteNode:497        """498        Setup NAT on the node with following configurations:499        1. Forward traffic on node's eth0 interface and port `guest_port`500        to the nested VM's port 22.501        2. Forward all traffic on node's eth1 interface to the nested VM.502        """503        # get core count504        core_count = node.tools[Lscpu].get_core_count()505        node_eth1_ip = node.nics.get_nic("eth1").ip_addr506        bridge_dhcp_range = f"{guest_internal_ip},{guest_internal_ip}"507        # enable ip forwarding508        node.tools[Sysctl].write("net.ipv4.ip_forward", "1")509        # setup bridge510        node.tools[Ip].setup_bridge(bridge_name, f"{bridge_gateway}/{bridge_cidr}")511        node.tools[Ip].set_bridge_configuration(bridge_name, "stp_state", "0")512        node.tools[Ip].set_bridge_configuration(bridge_name, "forward_delay", "0")513        # reset bridge lease file to remove old dns leases514        node.execute(515            f"cp /dev/null /var/run/qemu-dnsmasq-{bridge_name}.leases", sudo=True516        )517        # start dnsmasq518        node.tools[Dnsmasq].start(bridge_name, bridge_gateway, bridge_dhcp_range)519        # reset filter table to accept all traffic520        node.tools[Iptables].reset_table()521        # reset nat table and setup nat forwarding522        node.tools[Iptables].reset_table("nat")523        node.tools[Iptables].run(524            f"-t nat -A POSTROUTING -s {bridge_network}/{bridge_cidr} -j MASQUERADE",525            sudo=True,526            force_run=True,527        )528        # start nested vm529        nested_vm = qemu_connect_nested_vm(530            node,531            guest_username,532            guest_password,533            guest_port,534            guest_image_url,535            taps=1,536            cores=core_count,537            bridge=bridge_name,538            stop_existing_vm=True,539            name=nested_vm_name,540        )541        # configure rc.local to run dhclient on reboot542        nested_vm.tools[StartConfiguration].add_command("ip link set dev ens4 up")543        nested_vm.tools[StartConfiguration].add_command("dhclient ens4")544        # reboot nested vm and close ssh connection545        nested_vm.execute("reboot", sudo=True)546        nested_vm.close()547        # route traffic on `eth0` and port `guest_port` on l1 vm to548        # port 22 on l2 vm549        node.tools[Iptables].run(550            f"-t nat -A PREROUTING -i eth0 -p tcp --dport {guest_port} "551            f"-j DNAT --to {guest_internal_ip}:22",552            sudo=True,553            force_run=True,554        )555        # route all tcp traffic on `eth1` port on l1 vm to l2 vm556        node.tools[Iptables].run(557            f"-t nat -A PREROUTING -i eth1 -d {node_eth1_ip} "558            f"-p tcp -j DNAT --to {guest_internal_ip}",559            sudo=True,560            force_run=True,561        )562        # wait till nested vm is up563        try_connect(564            schema.ConnectionInfo(565                address=node.public_address,566                port=guest_port,567                username=guest_username,568                password=guest_password,569            )570        )571        # set default nic interfaces on l2 vm572        nested_vm.internal_address = node_eth1_ip573        nested_vm.capability.network_interface = Synthetic()574        return nested_vm575    def _linux_cleanup_nat(576        self,577        node: RemoteNode,578        bridge_name: str,579        log: Logger,580    ) -> None:581        try:582            # stop running QEMU instances583            node.tools[Qemu].delete_vm()584            # clear bridge and taps585            node.tools[Ip].delete_interface(bridge_name)586            # flush ip tables587            node.tools[Iptables].reset_table()588            node.tools[Iptables].reset_table("nat")589        except Exception as e:590            log.debug(f"Failed to clean up NAT configuration: {e}")591            node.mark_dirty()592    def _storage_perf_qemu(593        self,594        node: RemoteNode,595        result: TestResult,596        variables: Dict[str, Any],597        log: Logger,598        filename: str = "/dev/sdb",599        start_iodepth: int = 1,600        max_iodepth: int = 1024,601        setup_raid: bool = True,602    ) -> None:603        (604            nested_image_username,605            nested_image_password,606            nested_image_port,607            nested_image_url,608        ) = parse_nested_image_variables(variables)609        # get data disks and remove disk we will use for downloading610        # nested image611        l1_data_disks = node.features[Disk].get_raw_data_disks()612        log.debug(f"l1_data_disks: {l1_data_disks}")613        image_download_location = node.find_partition_with_freespace(614            NESTED_VM_REQUIRED_DISK_SIZE_IN_GB615        )616        image_download_disk = (617            node.tools[Lsblk]618            .find_disk_by_mountpoint(image_download_location, force_run=True)619            .device_name620        )621        log.debug(f"image_download_disk: {image_download_disk}")622        if image_download_disk in l1_data_disks:623            l1_data_disks.remove(image_download_disk)624        l1_data_disk_count = len(l1_data_disks)625        try:626            # setup raid on l1 data disks627            if setup_raid:628                disks = ["/dev/md0"]629                l1_partition_disks = reset_partitions(node, l1_data_disks)630                stop_raid(node)631                reset_raid(node, l1_partition_disks)632            else:633                disks = [l1_data_disks[0]]634            # get l2 vm635            l2_vm = qemu_connect_nested_vm(636                node,637                nested_image_username,638                nested_image_password,639                nested_image_port,640                nested_image_url,641                disks=disks,642            )643            l2_vm.capability.network_interface = Synthetic()644            # Qemu command exits immediately but the VM requires some time to boot up.645            l2_vm.tools[Lscpu].get_core_count()646            # Each fio process start jobs equal to the iodepth to read/write from647            # the disks. The max number of jobs can be equal to the core count of648            # the node.649            # Examples:650            # iodepth = 4, core count = 8 => max_jobs = 4651            # iodepth = 16, core count = 8 => max_jobs = 8652            num_jobs = []653            iodepth_iter = start_iodepth654            core_count = node.tools[Lscpu].get_core_count()655            while iodepth_iter <= max_iodepth:656                num_jobs.append(min(iodepth_iter, core_count))657                iodepth_iter = iodepth_iter * 2658            # Run fio test659            # The added disks appear as /dev/sdb on the nested vm660            perf_disk(661                l2_vm,662                start_iodepth,663                max_iodepth,664                filename,665                test_name=inspect.stack()[1][3],666                core_count=core_count,667                disk_count=l1_data_disk_count,668                disk_setup_type=DiskSetupType.raid0,669                disk_type=DiskType.premiumssd,670                test_result=result,671                num_jobs=num_jobs,672                size_mb=8192,673                overwrite=True,674            )675        finally:676            try:677                node.tools[Qemu].delete_vm()678                stop_raid(node)679            except Exception as e:680                log.debug(f"Failed to cleanup Qemu VM: {e}")681                node.mark_dirty()682    def _storage_perf_hyperv(683        self,684        node: RemoteNode,685        test_result: TestResult,686        variables: Dict[str, Any],687        log: Logger,688        filename: str = "/dev/sdb",689        start_iodepth: int = 1,690        max_iodepth: int = 1024,691        setup_raid: bool = False,692    ) -> None:693        (694            nested_image_username,695            nested_image_password,696            nested_image_port,697            nested_image_url,698        ) = parse_nested_image_variables(variables)699        mdadm = node.tools[Mdadm]700        try:701            # cleanup any previous raid configurations to free702            # data disks703            mdadm.stop_raid()704            # get data disk id705            powershell = node.tools[PowerShell]706            data_disks_id_str = powershell.run_cmdlet(707                "(Get-Disk | "708                "Where-Object {$_.FriendlyName -eq 'Msft Virtual Disk'}).Number"709            )710            data_disks_id = data_disks_id_str.strip().replace("\r", "").split("\n")711            # set data disks offline712            for disk in data_disks_id:713                powershell.run_cmdlet(714                    f"Set-Disk -Number {disk} -IsOffline $true", force_run=True715                )716            # create raid717            if setup_raid:718                mdadm.create_raid(data_disks_id)719            # get l2 vm720            nested_vm = hyperv_connect_nested_vm(721                node,722                nested_image_username,723                nested_image_password,724                nested_image_port,725                nested_image_url,726            )727            # Each fio process start jobs equal to the iodepth to read/write from728            # the disks. The max number of jobs can be equal to the core count of729            # the node.730            # Examples:731            # iodepth = 4, core count = 8 => max_jobs = 4732            # iodepth = 16, core count = 8 => max_jobs = 8733            num_jobs = []734            iodepth_iter = start_iodepth735            core_count = node.tools[Lscpu].get_core_count()736            while iodepth_iter <= max_iodepth:737                num_jobs.append(min(iodepth_iter, core_count))738                iodepth_iter = iodepth_iter * 2739            # run fio test740            perf_disk(741                nested_vm,742                start_iodepth,743                max_iodepth,744                filename,745                test_name=inspect.stack()[1][3],746                core_count=core_count,747                disk_count=1,748                disk_setup_type=DiskSetupType.raid0,749                disk_type=DiskType.premiumssd,750                test_result=test_result,751                num_jobs=num_jobs,752                size_mb=8192,753                overwrite=True,754            )755        finally:756            try:757                hyperv_remove_nested_vm(node)758                node.tools[Mdadm].stop_raid()759            except Exception as e:760                log.debug(f"Failed to cleanup Hyper-V vm: {e}")761                node.mark_dirty()762    def _windows_setup_nat(763        self,764        node: RemoteNode,765        nested_vm_name: str,766        guest_username: str,767        guest_password: str,768        guest_port: int,769        guest_image_url: str,770    ) -> RemoteNode:771        nested_vm = hyperv_connect_nested_vm(...

common.py

Source:common.py

...132    nested_vm.capability.network_interface = Synthetic()133    # wait for nested vm ssh connection to be ready134    try_connect(connection_info)135    return nested_vm136def hyperv_remove_nested_vm(137    host: RemoteNode,138    name: str = "L2-VM",139    image_name: str = HYPERV_NESTED_VM_IMAGE_NAME,140    switch_name: str = "nestedvmswitch",141    nat_name: str = "nestedvmnat",142) -> None:143    image_name = f"{name}_{image_name}"144    file_path = f"{HYPER_IMAGE_FOLDER}\\{image_name}"145    hyperv = host.tools[HyperV]146    # Delete VM147    hyperv.delete_vm(name)148    # delete image149    host.tools[Rm].remove_file(file_path)150    # delete nat network...

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