RosterIn commented on a change in pull request #5100: kub_test_operator.py
URL: https://github.com/apache/airflow/pull/5100#discussion_r277213450
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File path: airflow/example_dags/kub_test_operator.py
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@@ -0,0 +1,51 @@
+from airflow import DAG
+from datetime import datetime, timedelta
+from airflow.contrib.operators.kubernetes_pod_operator import
KubernetesPodOperator
+from airflow.operators.dummy_operator import DummyOperator
+
+default_args = {
+ 'owner': 'airflow',
+ 'depends_on_past': False,
+ 'start_date': datetime.utcnow(),
+ 'email': ['[email protected]'],
+ 'email_on_failure': False,
+ 'email_on_retry': False,
+ 'retries': 1,
+ 'retry_delay': timedelta(minutes=5)
+}
+
+dag = DAG(
+ 'kubernetes_hello_world', default_args=default_args,
schedule_interval=timedelta(minutes=10))
+
+
+start = DummyOperator(task_id='start', dag=dag)
+
+passing = KubernetesPodOperator(namespace='default',
+ image="python:3.6",
+ cmds=["python","-c"],
+ arguments=["print('hello world')"],
+ labels={"foo": "bar"},
+ name="passing-test",
+ task_id="passing-task",
+ get_logs=True,
+ dag=dag
+ )
+
+failing = KubernetesPodOperator(namespace='default',
+ image="ubuntu:16.04",
+ cmds=["python","-c"],
+ arguments=["print('hello world')"],
+ labels={"foo": "bar"},
+ name="fail",
+ task_id="failing-task",
+ get_logs=True,
+ dag=dag
+ )
+
+end = DummyOperator(task_id='end', dag=dag)
+
+
+passing.set_upstream(start)
+failing.set_upstream(start)
+passing.set_downstream(end)
+failing.set_downstream(end)
Review comment:
Better use bitwise instead of set_upstream / set_downstream as:
start >> [passing,failing] >> end
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