Question 38148 in Ubuntu Question posted in
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how to make your python web app always running on ubuntu machine

I have a web app that I deployed to a machine that has ubuntu 20 installed
to be able to run the app I should open ssh to the ubuntu machine and then run this command

cd mywebapp
python3 app.py

it works successfully, but once I close the ssh console or reboot the machine or anything happens, it stopped and I have to repeat these commands

I tried to add it as a corn job to be run after machine reboot but it does not work

I post a question in the following link : run python app after server restart does not work using crontab

nothing work with me, and I have to make sure that this web app will always be running because it should be working to send push notification to mobile devices

can anyone please advice, I have been searching and trying for so many time

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2

Answers


  1. 0

    I’m not expert in it, but two solutions come in my mind:

    1- Using systemd:

    systemd can be responsible to keep services up.

    You can write a custom unit for your app, and config it as a way to be up always.

    This tutorial may be useful: writing unit

    2- Using Docker:

    When you have containerized app, you config it as to come up, on failure or anything like that.

    Read about it here

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  2. 0

    What if you have the calling piece of Python script within a bash script and run that as a daemon:

    Your bash script could like below (test.sh):

    #!/bin/sh
cd desired/directory
python3 app.py

    and you can run the bashscript like this by using nohup:

    nohup ./test.sh 0<&- &>/dev/null &

    You could refer this, if you want to store the outputs of nohup.

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