nailo2c opened a new pull request, #52926:
URL: https://github.com/apache/airflow/pull/52926
Closes: #35012
# Why
1. Port `ssl_verify_cert` from `pydruid` to `DruidDbApiHook.get_conn`.
2. `get_pandas_df` was implemented in #35494.
# How
```python
druid_broker_conn = connect(
...
ssl_verify_cert=conn.extra_dejson.get("ssl_verify_cert", True),
)
```
# What
## ssl_verify_cert
Create connections with following commands:
```console
airflow connections add 'druid_ssl_true' \
--conn-type 'druid' \
--conn-host 'broker' \
--conn-port '8082' \
--conn-schema 'https' \
--conn-extra '{"endpoint": "/druid/v2/sql", "ssl_verify_cert": true}'
airflow connections add 'druid_ssl_false' \
--conn-type 'druid' \
--conn-host 'broker' \
--conn-port '8082' \
--conn-schema 'https' \
--conn-extra '{"endpoint": "/druid/v2/sql", "ssl_verify_cert": false}'
```
Create a DAG to test `ssl_verify_cert`:
```python
from airflow import DAG
from airflow.operators.python import PythonOperator
from airflow.providers.apache.druid.hooks.druid import DruidDbApiHook
from datetime import datetime
from airflow.exceptions import AirflowException
import logging
def test_druid_ssl_verify(conn_id):
hook = DruidDbApiHook(druid_broker_conn_id=conn_id)
try:
conn = hook.get_conn()
logging.info('=== conn.ssl_verify_cert ===')
logging.info(conn.ssl_verify_cert)
cur = conn.cursor()
cur.execute("SELECT 1")
result = cur.fetchall()
logging.info("Druid query result: %s", result)
except Exception as e:
logging.error("Connection failed: %s", str(e))
raise AirflowException(f"SSL test failed for connection {conn_id}:
{str(e)}")
finally:
conn.close()
with DAG(
dag_id="test_druid_ssl_verify",
start_date=datetime(2025, 7, 1),
schedule=None,
catchup=False,
tags=["druid", "ssl-test"],
) as dag:
test_conn_ssl_true = PythonOperator(
task_id="test_ssl_verify_true",
python_callable=test_druid_ssl_verify,
op_args=["druid_ssl_true"],
)
test_conn_ssl_false = PythonOperator(
task_id="test_ssl_verify_false",
python_callable=test_druid_ssl_verify,
op_args=["druid_ssl_false"],
)
test_conn_ssl_true >> test_conn_ssl_false
```
Result - matches expectation:
+ `ssl_verify_cert=true`
<img width="1905" alt="druid_ssl_true"
src="https://github.com/user-attachments/assets/faad3e75-b494-4a98-b6a4-2770108cd27d";
/>
+ `ssl_verify_cert=false`
<img width="1904" alt="druid_ssl_false"
src="https://github.com/user-attachments/assets/0dd1d1e7-71a6-405c-ade0-46136e8ef9fd";
/>
## get_pandas_df
Example DAG:
```python
from airflow import DAG
from airflow.operators.python import PythonOperator
from airflow.providers.apache.druid.hooks.druid import DruidDbApiHook
from datetime import datetime
import logging
def test_druid_get_pandas_df(conn_id: str):
hook = DruidDbApiHook(druid_broker_conn_id=conn_id)
try:
df = hook.get_pandas_df("SELECT 1")
logging.info("Druid returned dataframe:\n%s", df)
except Exception as e:
logging.error("Druid get_pandas_df failed: %s", e)
raise
with DAG(
dag_id="test_druid_get_pandas_df",
start_date=datetime(2025, 7, 1),
schedule=None,
catchup=False,
tags=["druid", "ssl", "get_pandas_df"],
) as dag:
run_query = PythonOperator(
task_id="run_druid_query",
python_callable=test_druid_get_pandas_df,
op_args=["druid_ssl_false"],
)
```
Result:
<img width="1909" alt="druid_pd_df"
src="https://github.com/user-attachments/assets/8b96bce7-ad28-4816-a129-1e987f9153a1";
/>
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