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# built-in import os # Installed from airflow.operators.python_operator import PythonOperator from airflow.models.dag import DAG from airflow.operators.dummy import DummyOperator from airflow.utils.dates import days_ago from airflow.utils.task_group import TaskGroup from plugins.utils.azure_blob_storage import AzureBlobStorage from kada_collectors.extractors.utils import load_config, get_hwm, publish_hwm, get_generic_logger from kada_collectors.extractors.tableau import Extractor # TODO: configure connectionTo be configed by the customer. # Note variables may change if using a different object store. KADA_SAS_TOKEN = os.getenv("KADA_SAS_TOKEN") KADA_CONTAINER = "" KADA_STORAGE_ACCOUNT = "" KADA_LANDING_PATH = "lz/dbt/Astronomer Snowflake/landing" KADA_EXTRACTOR_CONFIG = { "server_address": "http://tabserver", "username": "user", "password": "password", "sites": [], "db_host": "tabserver", "db_username": "repo_user", "db_password": "repo_password", "db_port": 8060, "db_name": "workgroup", "meta_only": False, "retries": 5, "dry_run": False, "output_path": "/set/to/output/path", "mask": True, "mapping": {} } # To be createdimplemented by the customer. depending # onUpload whereto theyour landing zone is locatedstorage. def upload(): output = KADA_EXTRACTOR_CONFIG['output_path'] for filename in os.listdir(output): if filename.endswith('.csv'): file_to_upload_path = os.path.join(output, filename) AzureBlobStorage.upload_file_sas_token( client=KADA_SAS_TOKEN, storage_account=KADA_STORAGE_ACCOUNT, container=KADA_CONTAINER, blob=f'{KADA_LANDING_PATH}/{filename}', local_path=file_to_upload_path ) with DAG(dag_id="taskgroup_example", start_date=days_ago(1)) as dag: # To be configureimplemented by the customer. depending on where you# storeRetrieve the timestamp from the prior run start_hwm = 'YYYY-MM-DD HH:mm:SS' # Source the timestamp from the prior run. end_hwm = 'YYYY-MM-DD HH:mm:SS' # timestamp now ext = Extractor(**KADA_EXTRACTOR_CONFIG) start = DummyOperator(task_id="start") with TaskGroup("taskgroup_1", tooltip="extract tableau and upload") as extract_upload: task_1 = PythonOperator( task_id="extract_tableau", python_callable=ext.run, op_kwargs={"start_hwm": start_hwm, "end_hwm": end_hwm}, provide_context=True, ) task_2 = PythonOperator( task_id="upload_extracts", python_callable=upload, op_kwargs={}, provide_context=True, ) task_3 = DummyOperator(task_id='save_hwm') # To be implemented by the customer. # ToTimestamp needs to be implemented by the customer. Timestamp needs to be saved. saved for next run task_3 = DummyOperator(task_id='save_hwm') end = DummyOperator(task_id='end') start >> extract_upload >> end |
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