def get_log(session, dag_id, dag_run_id, task_id, task_try_number, full_content=False, token=None): """Get logs for specific task instance""" key = current_app.config["SECRET_KEY"] if not token: metadata = {} else: try: metadata = URLSafeSerializer(key).loads(token) except BadSignature: raise BadRequest("Bad Signature. Please use only the tokens provided by the API.") if metadata.get('download_logs') and metadata['download_logs']: full_content = True if full_content: metadata['download_logs'] = True else: metadata['download_logs'] = False task_log_reader = TaskLogReader() if not task_log_reader.supports_read: raise BadRequest("Task log handler does not support read logs.") ti = ( session.query(TaskInstance) .filter(TaskInstance.task_id == task_id, TaskInstance.run_id == dag_run_id) .join(TaskInstance.dag_run) .options(eagerload(TaskInstance.dag_run)) .one_or_none() ) if ti is None: metadata['end_of_log'] = True raise NotFound(title="TaskInstance not found") dag = current_app.dag_bag.get_dag(dag_id) if dag: try: ti.task = dag.get_task(ti.task_id) except TaskNotFound: pass return_type = request.accept_mimetypes.best_match(['text/plain', 'application/json']) # return_type would be either the above two or None if return_type == 'application/json' or return_type is None: # default logs, metadata = task_log_reader.read_log_chunks(ti, task_try_number, metadata) logs = logs[0] if task_try_number is not None else logs token = URLSafeSerializer(key).dumps(metadata) return logs_schema.dump(LogResponseObject(continuation_token=token, content=logs)) # text/plain. Stream logs = task_log_reader.read_log_stream(ti, task_try_number, metadata) return Response(logs, headers={"Content-Type": return_type})
def get_log( *, dag_id: str, dag_run_id: str, task_id: str, task_try_number: int, full_content: bool = False, map_index: int = -1, token: Optional[str] = None, session: Session = NEW_SESSION, ) -> APIResponse: """Get logs for specific task instance""" key = get_airflow_app().config["SECRET_KEY"] if not token: metadata = {} else: try: metadata = URLSafeSerializer(key).loads(token) except BadSignature: raise BadRequest( "Bad Signature. Please use only the tokens provided by the API." ) if metadata.get('download_logs') and metadata['download_logs']: full_content = True if full_content: metadata['download_logs'] = True else: metadata['download_logs'] = False task_log_reader = TaskLogReader() if not task_log_reader.supports_read: raise BadRequest("Task log handler does not support read logs.") ti = (session.query(TaskInstance).filter( TaskInstance.task_id == task_id, TaskInstance.dag_id == dag_id, TaskInstance.run_id == dag_run_id, TaskInstance.map_index == map_index, ).join(TaskInstance.dag_run).one_or_none()) if ti is None: metadata['end_of_log'] = True raise NotFound(title="TaskInstance not found") dag = get_airflow_app().dag_bag.get_dag(dag_id) if dag: try: ti.task = dag.get_task(ti.task_id) except TaskNotFound: pass return_type = request.accept_mimetypes.best_match( ['text/plain', 'application/json']) # return_type would be either the above two or None logs: Any if return_type == 'application/json' or return_type is None: # default logs, metadata = task_log_reader.read_log_chunks( ti, task_try_number, metadata) logs = logs[0] if task_try_number is not None else logs # we must have token here, so we can safely ignore it token = URLSafeSerializer(key).dumps( metadata) # type: ignore[assignment] return logs_schema.dump( LogResponseObject(continuation_token=token, content=logs)) # text/plain. Stream logs = task_log_reader.read_log_stream(ti, task_try_number, metadata) return Response(logs, headers={"Content-Type": return_type})