How to use _export_vhd method in lisa

Best Python code snippet using lisa_python

transformers.py

Source:transformers.py

...104            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"...

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