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| import base64 | |
| from datetime import datetime | |
| from airflow import DAG | |
| from airflow.operators.bash import BashOperator | |
| from airflow.operators.python import PythonOperator | |
| from airflow.providers.ssh.operators.ssh import SSHOperator | |
| default_args = { | |
| 'start_date': datetime(2022, 3, 1), | |
| 'retries': 0 | |
| } | |
| def _decode_message(task_name, ti): | |
| message = ti.xcom_pull(task_ids=task_name) | |
| ret = base64.b64decode(message).decode().rstrip() | |
| return ret | |
| with DAG(dag_id='sshoperator_xcom', | |
| schedule_interval='0 * * * *', | |
| default_args=default_args, | |
| catchup=False) as dag: | |
| command = SSHOperator(task_id="command", | |
| command="date", | |
| ssh_conn_id="conn_id", | |
| do_xcom_push=True) | |
| decode = PythonOperator( | |
| task_id='decode', | |
| python_callable=_decode_message, | |
| op_args = [ | |
| 'command' | |
| ] | |
| ) | |
| print = BashOperator( | |
| task_id='print', | |
| bash_command="echo {{ ti.xcom_pull(task_ids='decode') }}" | |
| ) | |
| command >> decode >> print |
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