Using TaskGroup without context manager (Graph view visual bug) #14864
Description
Apache Airflow version: 2.0.0
Kubernetes version (if you are using kubernetes) (use kubectl version): n/a
What happened:
When I do not use the context manager for the task group and instead call the add function to add the tasks, those tasks show up on the Graph view.
However, when I click on the task group item on the Graph UI, it will fix the issue. When I close the task group item, the tasks will not be displayed as expected.
What you expected to happen:
I expected the tasks inside the task group to not display on the Graph view.
How to reproduce it:
Render this DAG in Airflow
from airflow.models import DAG
from airflow.operators.bash import BashOperator
from airflow.operators.dummy import DummyOperator
from airflow.utils.task_group import TaskGroup
from datetime import datetime
with DAG(dag_id="example_task_group", start_date=datetime(2021, 1, 1), tags=["example"], catchup=False) as dag:
start = BashOperator(task_id="start", bash_command='echo 1; sleep 10; echo 2;')
tg = TaskGroup("section_1", tooltip="Tasks for section_1")
task_1 = DummyOperator(task_id="task_1")
task_2 = BashOperator(task_id="task_2", bash_command='echo 1')
task_3 = DummyOperator(task_id="task_3")
tg.add(task_1)
tg.add(task_2)
tg.add(task_3)