小编3Le*_*exW的帖子

我刚刚开始学习Airflow，但是掌握Xcom的概念是相当困难的。因此我写了这样的达格：

from airflow import DAG
from airflow.utils.edgemodifier import Label

from datetime import datetime
from datetime import timedelta

from airflow.operators.bash import BashOperator
from airflow.contrib.operators.ssh_operator import SSHOperator
from airflow.contrib.hooks.ssh_hook import SSHHook

#For more default argument for a task (or creating templates), please check this website
#https://airflow.apache.org/docs/apache-airflow/stable/_api/airflow/models/index.html#airflow.models.BaseOperator

default_args = {
    'owner': '...',
    'email': ['...'],
    'email_on_retry': False,
    'email_on_failure': True,
    'retries': 3,
    'retry_delay': timedelta(minutes=5),
    'start_date': datetime(2021, 6, 10, 23, 0, 0, 0),
    
}

hook = SSHHook(
    remote_host='...',
    username='...',
    password='...## Heading ##',
    port=22,
)

with DAG( …