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README.md

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app-queue.service

app-queue.service

 
 

app.py

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app.service

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requirements.txt

requirements.txt

 
 

worker.py

worker.py

 
 

README.md

SystemD implementation

Usage

Pretty simple

  1. Clone the repo and cd into the directory.

  2. Start a vanilla redis server (or use one you already have). Docker Desktop is fine for a demo.

  3. Make sure the port number needed in ☝️ is in worker.py.

  4. (Mac only) Set the environment variable needed for process forking.

    export OBJC_DISABLE_INITIALIZE_FORK_SAFETY=YES

  5. Start worker.py in the background.

  6. Start app.py by launching flask.

    /usr/bin/env python3 -m flask run --host=0.0.0.0 --port=5000

  7. If needed for external connectivity, launch ngrok and map it to whatever you have app.py listening on.

  8. Look at the logs of the Docker container once it's done to see a nice "Hello world" message customized to your username! 🎉

There are 2 systemd unit files in this directory. They launch worker.py and app.py in the background once redis is up. You should check the name of the redis service in app-queue.service to make sure it's correct to your distribution.