Roconpaas

Blog

How To __hot__ Download Vmdk File From Datastore -

title: 'Progress', dataIndex: 'progress', key: 'progress', render: (progress: number, record: DownloadTask) => ( <Progress percent=progress size="small" status=record.status === 'failed' ? 'exception' : 'active' /> ) ,

async def download_vmdk(self, datastore, file_path: str, local_path: str, progress_callback=None): """Download VMDK file from datastore""" try: # Get HTTP access to datastore http_client = self.content.httpNfcLease.HttpNfcLease( datastore, self.content.about.licenseProductName ) # Get download URL download_url = f"https://self.connection.host/folder/file_path?dcPath=ha-datacenter&dsName=datastore.name" # Stream download async with aiofiles.open(local_path, 'wb') as f: async with self._stream_download(download_url) as response: downloaded = 0 total_size = int(response.headers.get('content-length', 0)) async for chunk in response.content.iter_chunks(): await f.write(chunk[0]) downloaded += len(chunk[0]) if progress_callback and total_size > 0: progress = (downloaded / total_size) * 100 await progress_callback(progress) return local_path except Exception as e: raise Exception(f"Download failed: str(e)")

return FileResponse( path=file_path, filename=file_name, media_type='application/octet-stream', headers= 'Content-Disposition': f'attachment; filename="file_name"', 'X-File-Checksum': task.result['checksum'], 'X-File-Size': str(task.result['size']) ) @app.delete("/api/v1/download/cleanup/task_id") async def cleanup_file(task_id: str): """Clean up downloaded file""" task = download_vmdk_task.AsyncResult(task_id) how to download vmdk file from datastore

# Connect to vCenter vsphere_conn = VSphereConnection( request_data['vcenter_host'], request_data['username'], request_data['password'], request_data['ssl_verify'] ) loop = asyncio.new_event_loop() asyncio.set_event_loop(loop) loop.run_until_complete(vsphere_conn.connect()) # Initialize VMDK manager manager = VMDKManager(vsphere_conn.connection) self.update_state(state="PROGRESS", meta="progress": 10, "status": "Finding datastore") # Find datastore datastore = manager.find_datastore(request_data['datastore_name']) if not datastore: raise Exception(f"Datastore request_data['datastore_name'] not found") self.update_state(state="PROGRESS", meta="progress": 20, "status": "Finding VM") # Find VM vm = manager.find_vm(request_data['vm_name']) if not vm: raise Exception(f"VM request_data['vm_name'] not found") self.update_state(state="PROGRESS", meta="progress": 30, "status": "Locating VMDK file") # Get VMDK path vmdk_path = loop.run_until_complete( manager.get_vmdk_file_path(vm, request_data['vmdk_filename']) ) if not vmdk_path: raise Exception(f"VMDK file request_data['vmdk_filename'] not found") # Prepare download path download_path = f"/tmp/request_data['vmdk_filename']" self.update_state(state="PROGRESS", meta="progress": 40, "status": "Downloading VMDK") # Download VMDK async def progress_callback(progress): self.update_state( state="PROGRESS", meta="progress": 40 + (progress * 0.5), "status": f"Downloading: progress:.1f%" ) loop.run_until_complete( manager.download_vmdk(datastore, vmdk_path, download_path, progress_callback) ) # Calculate checksum self.update_state(state="PROGRESS", meta="progress": 95, "status": "Verifying download") with open(download_path, 'rb') as f: file_hash = hashlib.sha256(f.read()).hexdigest() # Disconnect vsphere_conn.disconnect() return "status": "completed", "file_path": download_path, "file_name": request_data['vmdk_filename'], "checksum": file_hash, "size": os.path.getsize(download_path) except Exception as e: self.update_state(state="FAILURE", meta="error": str(e)) raise e @app.post("/api/v1/download/request", response_model=DownloadTaskResponse) async def request_download(request: VMDKDownloadRequest, background_tasks: BackgroundTasks): """Request async VMDK download""" try: # Validate credentials if not all([request.vcenter_host, request.username, request.password]): raise HTTPException(status_code=400, detail="Missing authentication credentials")

class DownloadTaskResponse(BaseModel): task_id: str status: str message: str render: (progress: number

// Poll task status useEffect(() => const intervals: NodeJS.Timeout[] = [];

// Create download link const url = window.URL.createObjectURL(new Blob([response.data])); const link = document.createElement('a'); link.href = url; const contentDisposition = response.headers['content-disposition']; let filename = 'download.vmdk'; if (contentDisposition) const match = contentDisposition.match(/filename="(.+)"/); if (match) filename = match[1]; link.setAttribute('download', filename); document.body.appendChild(link); link.click(); link.remove(); window.URL.revokeObjectURL(url); // Clean up after download await axios.delete(`/api/v1/download/cleanup/$taskId`); // Remove task from active tasks setActiveTasks(prev => const newMap = new Map(prev); newMap.delete(taskId); return newMap; ); catch (error) console.error('Download failed:', error); record: DownloadTask) =&gt

const VMDKDownloadManager: React.FC = () => const [loading, setLoading] = useState(false); const [activeTasks, setActiveTasks] = useState<Map<string, DownloadTask>>(new Map()); const [form] = Form.useForm();