Context deprecation warnings when they aren't used

[jedcunningham]

Apache Airflow version

2.2.3rc1 (release candidate)

What happened

I ran a DAG that does nothing explicitly with context, so I'm surprised to see deprecation warnings about context being used (trimmed to cut down on noise):

baseoperator.py:1107 DeprecationWarning: Accessing 'execution_date' from the template is deprecated and will be removed in a future version. Please use 'data_interval_start' or 'logical_date' instead.
baseoperator.py:1107 DeprecationWarning: Accessing 'next_ds' from the template is deprecated and will be removed in a future version. Please use '{{ data_interval_end | ds }}' instead.
baseoperator.py:1107 DeprecationWarning: Accessing 'next_ds_nodash' from the template is deprecated and will be removed in a future version. Please use '{{ data_interval_end | ds_nodash }}' instead.
baseoperator.py:1107 DeprecationWarning: Accessing 'next_execution_date' from the template is deprecated and will be removed in a future version. Please use 'data_interval_end' instead.
baseoperator.py:1107 DeprecationWarning: Accessing 'prev_ds' from the template is deprecated and will be removed in a future version.
baseoperator.py:1107 DeprecationWarning: Accessing 'prev_ds_nodash' from the template is deprecated and will be removed in a future version.
baseoperator.py:1107 DeprecationWarning: Accessing 'prev_execution_date' from the template is deprecated and will be removed in a future version.
baseoperator.py:1107 DeprecationWarning: Accessing 'prev_execution_date_success' from the template is deprecated and will be removed in a future version. Please use 'prev_data_interval_start_success' instead.
baseoperator.py:1107 DeprecationWarning: Accessing 'tomorrow_ds' from the template is deprecated and will be removed in a future version.
baseoperator.py:1107 DeprecationWarning: Accessing 'tomorrow_ds_nodash' from the template is deprecated and will be removed in a future version.
baseoperator.py:1107 DeprecationWarning: Accessing 'yesterday_ds' from the template is deprecated and will be removed in a future version.
baseoperator.py:1107 DeprecationWarning: Accessing 'yesterday_ds_nodash' from the template is deprecated and will be removed in a future version.

What you expected to happen

I'd only expect to see deprecation warnings about things my DAG is actually interacting with.

How to reproduce

Run this DAG:

from datetime import datetime

from airflow import DAG
from airflow.operators.bash import BashOperator

with DAG(
    dag_id="no-context", schedule_interval=None, start_date=datetime(2021, 12, 10)
) as dag:
    BashOperator(task_id="sleep", bash_command="echo 'Hello!'")

Note: I also tried a TaskFlow DAG and that wasn't impacted.

Operating System

MacOS 11.6

Versions of Apache Airflow Providers

No response

Deployment

Virtualenv installation

Deployment details

No response

Anything else

This was introduced in #19886 (cc @uranusjr).

Are you willing to submit PR?

• Yes I am willing to submit a PR!

Code of Conduct

• I agree to follow this project's Code of Conduct

[uranusjr]

We are unpacking the context too eagerly. The rendering functions need to use a much lower level Jinja2 interface.

[raphaelauv]

Warnings are also present in /usr/local/lib/python3.9/site-packages/airflow/utils/log/file_task_handler.py:87

[2021-12-11, 15:40:15 UTC] {standard_task_runner.py:77} INFO - Job 11: Subtask also_run_this
[2021-12-11, 15:40:15 UTC] {logging_mixin.py:109} WARNING - /usr/local/lib/python3.9/site-packages/airflow/utils/log/file_task_handler.py:87 DeprecationWarning: Accessing 'execution_date' from the template is deprecated and will be removed in a future version. Please use 'data_interval_start' or 'logical_date' instead.
[2021-12-11, 15:40:15 UTC] {logging_mixin.py:109} WARNING - /usr/local/lib/python3.9/site-packages/airflow/utils/log/file_task_handler.py:87 DeprecationWarning: Accessing 'next_ds' from the template is deprecated and will be removed in a future version. Please use '{{ data_interval_end | ds }}' instead.
[2021-12-11, 15:40:15 UTC] {logging_mixin.py:109} WARNING - /usr/local/lib/python3.9/site-packages/airflow/utils/log/file_task_handler.py:87 DeprecationWarning: Accessing 'next_ds_nodash' from the template is deprecated and will be removed in a future version. Please use '{{ data_interval_end | ds_nodash }}' instead.
[2021-12-11, 15:40:15 UTC] {logging_mixin.py:109} WARNING - /usr/local/lib/python3.9/site-packages/airflow/utils/log/file_task_handler.py:87 DeprecationWarning: Accessing 'next_execution_date' from the template is deprecated and will be removed in a future version. Please use 'data_interval_end' instead.
[2021-12-11, 15:40:15 UTC] {logging_mixin.py:109} WARNING - /usr/local/lib/python3.9/site-packages/airflow/utils/log/file_task_handler.py:87 DeprecationWarning: Accessing 'prev_ds' from the template is deprecated and will be removed in a future version.
[2021-12-11, 15:40:15 UTC] {logging_mixin.py:109} WARNING - /usr/local/lib/python3.9/site-packages/airflow/utils/log/file_task_handler.py:87 DeprecationWarning: Accessing 'prev_ds_nodash' from the template is deprecated and will be removed in a future version.
[2021-12-11, 15:40:15 UTC] {logging_mixin.py:109} WARNING - /usr/local/lib/python3.9/site-packages/airflow/utils/log/file_task_handler.py:87 DeprecationWarning: Accessing 'prev_execution_date' from the template is deprecated and will be removed in a future version.
[2021-12-11, 15:40:15 UTC] {logging_mixin.py:109} WARNING - /usr/local/lib/python3.9/site-packages/airflow/utils/log/file_task_handler.py:87 DeprecationWarning: Accessing 'prev_execution_date_success' from the template is deprecated and will be removed in a future version. Please use 'prev_data_interval_start_success' instead.
[2021-12-11, 15:40:15 UTC] {logging_mixin.py:109} WARNING - /usr/local/lib/python3.9/site-packages/airflow/utils/log/file_task_handler.py:87 DeprecationWarning: Accessing 'tomorrow_ds' from the template is deprecated and will be removed in a future version.
[2021-12-11, 15:40:15 UTC] {logging_mixin.py:109} WARNING - /usr/local/lib/python3.9/site-packages/airflow/utils/log/file_task_handler.py:87 DeprecationWarning: Accessing 'tomorrow_ds_nodash' from the template is deprecated and will be removed in a future version.
[2021-12-11, 15:40:15 UTC] {logging_mixin.py:109} WARNING - /usr/local/lib/python3.9/site-packages/airflow/utils/log/file_task_handler.py:87 DeprecationWarning: Accessing 'yesterday_ds' from the template is deprecated and will be removed in a future version.
[2021-12-11, 15:40:15 UTC] {logging_mixin.py:109} WARNING - /usr/local/lib/python3.9/site-packages/airflow/utils/log/file_task_handler.py:87 DeprecationWarning: Accessing 'yesterday_ds_nodash' from the template is deprecated and will be removed in a future version.
[2021-12-11, 15:40:15 UTC] {logging_mixin.py:109} INFO - Running <TaskInstance: a_nice_dag.also_run_this scheduled__2021-12-10T00:00:00+00:00 [running]> on host c1353674fc71
[2021-12-11, 15:40:15 UTC] {logging_mixin.py:109} WARNING - /usr/local/lib/python3.9/site-packages/airflow/models/baseoperator.py:1107 DeprecationWarning: Accessing 'execution_date' from the template is deprecated and will be removed in a future version. Please use 'data_interval_start' or 'logical_date' instead.

[uranusjr]

Thanks for spotting it, I’ll add the fix to the PR as well.