doiken opened a new pull request, #25979:
URL: https://github.com/apache/airflow/pull/25979
When `no_host_key_check` is true, new host keys are not added.
```
from airflow import DAG
from airflow.operators.python import PythonOperator
from airflow.providers.ssh.hooks.ssh import SSHHook
from airflow.utils.dates import days_ago
with DAG(dag_id="example_python", schedule_interval=None,
start_date=days_ago(2)) as dag:
def f():
hook = SSHHook(ssh_conn_id="ssh_default")
hook.exec_ssh_client_command(hook.get_conn(), "grep localhost
~/.ssh/known_hosts", False, None, None)
# [2022-08-26, 09:52:15 UTC] {ssh.py:467} INFO - Running command:
grep localhost ~/.ssh/known_hosts
# [2022-08-26, 09:52:15 UTC] {python.py:171} INFO - Done. Returned
value was: None
t = PythonOperator(task_id="example", python_callable=f)
```
I hope that it works as the docs described bellow.
https://airflow.apache.org/docs/apache-airflow-providers-ssh/stable/connections/ssh.html
> no_host_key_check ... Default is true, ssh will automatically add new host
keys to the user known hosts files.
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