在Airflow中,要发送多个文件的电子邮件,需要通过使用Python的邮件模块来实现。首先,在DAG文件中,可以使用PythonOperator定义一个函数来发送多个文件的电子邮件。然后,在定义电子邮件函数时,使用邮件模块中的MIMEMultipart类来创建多个附件。
以下是一个示例代码,演示了如何使用PythonOperator和MIMEMultipart类发送多个文件的电子邮件:
from airflow import DAG
from airflow.operators.python_operator import PythonOperator
import smtplib
import os
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart
from email.mime.application import MIMEApplication
from datetime import datetime
dag = DAG('send_email_with_attachment', start_date=datetime.now())
def send_email():
send_from = 'sender@example.com'
send_to = 'recipient@example.com'
subject = 'Multiple attachments example'
msg = MIMEMultipart()
msg['From'] = send_from
msg['To'] = send_to
msg['Subject'] = subject
# Attach files
files = ['file1.txt', 'file2.txt', 'file3.txt']
for f in files:
with open(f, "rb") as fil:
attach = MIMEApplication(fil.read(),_subtype = "txt")
attach.add_header('Content-Disposition','attachment',filename=str(f))
msg.attach(attach)
# Send the email
smtp = smtplib.SMTP('smtp.gmail.com', 587)
smtp.ehlo()
smtp.starttls()
smtp.login('sender@example.com', 'password')
smtp.sendmail(send_from, send_to, msg.as_string())
smtp.close()
send_email_task = PythonOperator(task_id='send_email',
python_callable=send_email,
dag=dag)
在该示例中,我们定义了send_email
函数,该函数使用MIMEMultipart类创建一个包含多个附件的电子邮件。首先,我们定义发送者,收件人和主题。然后,我们使用for循