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How to use _generate_vhd_path method in lisa

Best Python code snippet using lisa_python

transformers.py

Source:transformers.py

...36from .tools import Waagent37DEFAULT_EXPORTED_VHD_CONTAINER_NAME = "lisa-vhd-exported"38DEFAULT_VHD_SUFFIX = "exported"39@retry(tries=10, jitter=(1, 2))40def _generate_vhd_path(container_client: Any, file_name_part: str = "") -> str:41    path = PurePosixPath(42        f"{get_date_str()}/{get_datetime_path()}_"43        f"{DEFAULT_VHD_SUFFIX}_{file_name_part}.vhd"44    )45    blobs = container_client.list_blobs(name_starts_with=path)46    for _ in blobs:47        raise LisaException(f"blob exists already: {path}")48    return str(path)49@dataclass_json50@dataclass51class VhdTransformerSchema(schema.Transformer):52    # shared resource group name53    shared_resource_group_name: str = AZURE_SHARED_RG_NAME54    # resource group and vm name to be exported55    resource_group_name: str = field(default="", metadata=field_metadata(required=True))56    vm_name: str = ""57    # values for SSH connection. public_address is optional, because it can be58    # retrieved from vm_name. Others can be retrieved from platform.59    public_address: str = ""60    public_port: int = 2261    username: str = constants.DEFAULT_USER_NAME62    password: str = ""63    private_key_file: str = ""64    # values for exported vhd. storage_account_name is optional, because it can65    # be the default storage of LISA.66    storage_account_name: str = ""67    container_name: str = DEFAULT_EXPORTED_VHD_CONTAINER_NAME68    file_name_part: str = ""69    # restore environment or not70    restore: bool = False71@dataclass_json72@dataclass73class DeployTransformerSchema(schema.Transformer):74    requirement: schema.Capability = field(default_factory=schema.Capability)75    resource_group_name: str = ""76@dataclass_json77@dataclass78class DeleteTransformerSchema(schema.Transformer):79    resource_group_name: str = field(default="", metadata=field_metadata(required=True))80class VhdTransformer(Transformer):81    """82    convert an azure VM to VHD, which is ready to deploy.83    """84    __url_name = "url"85    @classmethod86    def type_name(cls) -> str:87        return "azure_vhd"88    @classmethod89    def type_schema(cls) -> Type[schema.TypedSchema]:90        return VhdTransformerSchema91    @property92    def _output_names(self) -> List[str]:93        return [self.__url_name]94    def _internal_run(self) -> Dict[str, Any]:95        runbook: VhdTransformerSchema = self.runbook96        platform = _load_platform(self._runbook_builder, self.type_name())97        environment = load_environment(platform, runbook.resource_group_name, self._log)98        if runbook.vm_name:99            node = next(100                x for x in environment.nodes.list() if x.name == runbook.vm_name101            )102        else:103            # if no vm_name specified, use the first vm104            node = next(x for x in environment.nodes.list())105        assert isinstance(node, RemoteNode)106        self._prepare_virtual_machine(node)107        virtual_machine = get_vm(platform, node)108        vhd_location = self._export_vhd(platform, virtual_machine)109        self._restore_vm(platform, virtual_machine, node)110        return {self.__url_name: vhd_location}111    def _prepare_virtual_machine(self, node: RemoteNode) -> None:112        runbook: VhdTransformerSchema = self.runbook113        if not runbook.public_address:114            runbook.public_address = node.public_address115        # prepare vm for exporting116        wa = node.tools[Waagent]117        node.execute("export HISTSIZE=0", shell=True)118        wa.deprovision()119        # stop the vm120        startstop = node.features[StartStop]121        startstop.stop()122    def _export_vhd(self, platform: AzurePlatform, virtual_machine: Any) -> str:123        runbook: VhdTransformerSchema = self.runbook124        compute_client = get_compute_client(platform)125        # generate sas url from os disk, so it can be copied.126        self._log.debug("generating sas url...")127        location = virtual_machine.location128        os_disk_name = virtual_machine.storage_profile.os_disk.name129        operation = compute_client.disks.begin_grant_access(130            resource_group_name=runbook.resource_group_name,131            disk_name=os_disk_name,132            grant_access_data=GrantAccessData(access="Read", duration_in_seconds=86400),133        )134        wait_operation(operation)135        sas_url = operation.result().access_sas136        assert sas_url, "cannot get sas_url from os disk"137        self._log.debug("getting or creating storage account and container...")138        # get vhd container139        if not runbook.storage_account_name:140            runbook.storage_account_name = get_storage_account_name(141                subscription_id=platform.subscription_id, location=location, type="t"142            )143        check_or_create_storage_account(144            credential=platform.credential,145            subscription_id=platform.subscription_id,146            account_name=runbook.storage_account_name,147            resource_group_name=runbook.shared_resource_group_name,148            location=location,149            log=self._log,150        )151        container_client = get_or_create_storage_container(152            credential=platform.credential,153            subscription_id=platform.subscription_id,154            account_name=runbook.storage_account_name,155            container_name=runbook.container_name,156            resource_group_name=runbook.shared_resource_group_name,157        )158        path = _generate_vhd_path(container_client, runbook.file_name_part)159        vhd_path = f"{container_client.url}/{path}"160        blob_client = container_client.get_blob_client(path)161        blob_client.start_copy_from_url(sas_url, metadata=None, incremental_copy=False)162        wait_copy_blob(blob_client, vhd_path, self._log)163        return vhd_path164    def _restore_vm(165        self, platform: AzurePlatform, virtual_machine: Any, node: Node166    ) -> None:167        runbook: VhdTransformerSchema = self.runbook168        self._log.debug("restoring vm...")169        # release the vhd export lock, so it can be started back170        compute_client = get_compute_client(platform)171        os_disk_name = virtual_machine.storage_profile.os_disk.name172        operation = compute_client.disks.begin_revoke_access(...

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