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How to use create_node_from_exists method in lisa

Best Python code snippet using lisa_python

environment.py

Source:environment.py

...237            remove_handler(self._log_handler, self.log)238            self._log_handler.close()239    def close(self) -> None:240        self.nodes.close()241    def create_node_from_exists(242        self,243        node_runbook: schema.Node,244    ) -> Node:245        node = Node.create(246            index=len(self.nodes),247            runbook=node_runbook,248            base_part_path=self.environment_part_path,249            parent_logger=self.log,250        )251        self.nodes.append(node)252        return node253    def create_node_from_requirement(254        self,255        node_requirement: schema.NodeSpace,256    ) -> Node:257        min_requirement = cast(258            schema.Capability,259            node_requirement.generate_min_capability(node_requirement),260        )261        assert isinstance(min_requirement.node_count, int), (262            f"must be int after generate_min_capability, "263            f"actual: {min_requirement.node_count}"264        )265        # node count should be expanded in platform already266        assert min_requirement.node_count == 1, f"actual: {min_requirement.node_count}"267        mock_runbook = schema.RemoteNode(268            type=constants.ENVIRONMENTS_NODES_REMOTE,269            capability=min_requirement,270            is_default=node_requirement.is_default,271        )272        node = Node.create(273            index=len(self.nodes),274            runbook=mock_runbook,275            base_part_path=self.environment_part_path,276            parent_logger=self.log,277        )278        self.nodes.append(node)279        return node280    def get_information(self) -> Dict[str, str]:281        final_information: Dict[str, str] = {}282        informations: List[283            Dict[str, str]284        ] = plugin_manager.hook.get_environment_information(environment=self)285        # reverse it, since it's FILO order,286        # try basic earlier, and they are allowed to be overwritten287        informations.reverse()288        for current_information in informations:289            final_information.update(current_information)290        return final_information291    def mark_dirty(self) -> None:292        self.log.debug("mark environment to dirty")293        self._is_dirty = True294    def _initialize(self, *args: Any, **kwargs: Any) -> None:295        if self.status != EnvironmentStatus.Deployed:296            raise LisaException("environment is not deployed, cannot be initialized")297        if not hasattr(self, "_log_handler"):298            self._log_handler = create_file_handler(299                self.log_path / "environment.log", self.log300            )301        self.nodes.initialize()302        self.status = EnvironmentStatus.Connected303    def _reset(self) -> None:304        self.nodes = Nodes()305        self.runbook.reload_requirements()306        self.is_new = True307        if not self.runbook.nodes_requirement and not self.runbook.nodes:308            raise LisaException("not found any node or requirement in environment")309        has_default_node = False310        for node_runbook in self.runbook.nodes:311            self.create_node_from_exists(312                node_runbook=node_runbook,313            )314            has_default_node = self._validate_single_default(315                has_default_node, node_runbook.is_default316            )317        if self._retries > 0:318            # provide an unique id.319            self.id = f"{self._raw_id}-{self._retries}"320        self.remove_context()321        self._retries += 1322    def _validate_single_default(323        self, has_default: bool, is_default: Optional[bool]324    ) -> bool:325        if is_default:...

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