Source code for tests.system.providers.papermill.example_papermill_verify

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This DAG will use Papermill to run the notebook "hello_world", based on the execution date
it will create an output notebook "out-<date>". All fields, including the keys in the parameters, are
import os
from datetime import datetime, timedelta

import scrapbook as sb

from airflow import DAG
from airflow.decorators import task
from airflow.lineage import AUTO
from airflow.providers.papermill.operators.papermill import PapermillOperator

[docs]START_DATE = datetime(2021, 1, 1)
[docs]SCHEDULE_INTERVAL = '0 0 * * *'
[docs]DAGRUN_TIMEOUT = timedelta(minutes=60)
[docs]ENV_ID = os.environ.get("SYSTEM_TESTS_ENV_ID")
[docs]DAG_ID = "example_papermill_operator_verify"
# [START howto_verify_operator_papermill] @task
[docs]def check_notebook(inlets, execution_date): """ Verify the message in the notebook """ notebook = sb.read_notebook(inlets[0].url) message = notebook.scraps['message'] print(f"Message in notebook {message} for {execution_date}") if != f"Ran from Airflow at {execution_date}!": return False return True
with DAG( dag_id='example_papermill_operator_verify', schedule_interval=SCHEDULE_INTERVAL, start_date=START_DATE, dagrun_timeout=DAGRUN_TIMEOUT, catchup=False, ) as dag:
[docs] run_this = PapermillOperator( task_id="run_example_notebook", input_nb=os.path.join(os.path.dirname(os.path.realpath(__file__)), "input_notebook.ipynb"), output_nb="/tmp/out-{{ execution_date }}.ipynb", parameters={"msgs": "Ran from Airflow at {{ execution_date }}!"},
) run_this >> check_notebook(inlets=AUTO, execution_date="{{ execution_date }}") # [END howto_verify_operator_papermill] from tests.system.utils import get_test_run # noqa: E402 # Needed to run the example DAG with pytest (see: tests/system/
[docs]test_run = get_test_run(dag)

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