Monitoring tasks on server

Since I can’t determine when the tasks on the server will finish, and it’s impossible to constantly monitor the server to check whether the tasks are completed, I need a way to notify me when task is finished.

In the end, I use a solution which is combined by Bash and yagmail.

Simply put, I write a Python file to send email to me, then, execute this Python file at the end of the Bash script that runs the task.

Here’s an example:

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import os
import argparse

import yagmail


def init_parse():
    parse = argparse.ArgumentParser()
    parse.add_argument('-d', '--description', type=str, default='')

    return parse


if __name__ == "__main__":
    user_name = os.getlogin()
    server_name = os.uname()[1]
    parse = init_parse()
    args = parse.parse_args()

    try:
        mail_server = yagmail.SMTP(
            user="sender_address",
            password="SMTP_password",
            port=587,
            smtp_starttls=True,
            smtp_ssl=None,
        )
        email_address = ["recipient_address"]
        title = [f"{args.description} experiment on {server_name} finished"]
        content = [" "]
        mail_server.send(to=email_address, subject=title, contents=content)
        mail_server.close()
        print("sending finished")
    except Exception as e:
        print(repr(e))

Bash scripts:

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# Your task
python xxxx

# Notification
python send_email.py -d xxxx