francescomucio commented on code in PR #25509:
URL: https://github.com/apache/airflow/pull/25509#discussion_r937690359
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airflow/models/dag.py:
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@@ -522,7 +522,7 @@ def __init__(
self.has_on_success_callback = self.on_success_callback is not None
self.has_on_failure_callback = self.on_failure_callback is not None
- self.doc_md = doc_md
+ self.doc_md = pathlib.Path(doc_md).read_text() if
pathlib.Path(str(doc_md or '')).is_file() else doc_md
Review Comment:
I figured out how to render the `.md` file as a Jinja template.
Unfortunately the `doc_md` template at DAG level cannot access Airflow
macros because there is no context (like for the templated fields for tasks).
As mentioned
[here](https://github.com/apache/airflow/discussions/25396#discussioncomment-3280373).
Of course a macro like `{{ ds }}` has no meaning at DAG level, but accessing
Airflow Variables or Connection could be useful.
If anyone has an idea on how to add the context, I can try to do it :)
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