Francesco Macagno created AIRFLOW-4833:
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Summary: Jinja templating removes newlines
Key: AIRFLOW-4833
URL: https://issues.apache.org/jira/browse/AIRFLOW-4833
Project: Apache Airflow
Issue Type: Bug
Components: operators
Affects Versions: 1.10.2
Reporter: Francesco Macagno
When using an operator that has Jinja templating enabled for a field, if the
field value ends with a newline then the newline is removed, regardless of
whether there was a template in the string.
This came up when attempting to send data to Prometheus pushgateway using the
SimpleHttpOperator. Pushgateway requires a newline at the end of every entry,
so the removal of the newline at the end of the data parameter causes the
request to fail in a way that is difficult to debug.
This can be gotten around by including a space after the newline character,
though this is not a great solution. The space is ignored by pushgateway.
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