I am slightly lost, I have a Debian 9 server and a Python Flask script that I am trying to launch at startup.

In the past I have used rc.local to launch things at startup but from reading it seems that it is now deprecated.

Can anyone tell me what is its replacement, what method am I best using now?


Debian 9 (like many other current Linux distributions) uses systemd to start and manage your system and services.

You'll be facing a bit of a learning curve compared to adding lines to rc.local but writing unit files (systemd jargon for what is effectively the equivalent of a start and stop script for a service) will be usefull skill to learn.

The Debian specific documentation on systemd is found on https://wiki.debian.org/systemd
The page https://wiki.debian.org/systemd/Services contains detailed step-by-step intructions for what is needed to write your own (minimal) unit file:

  • Create the unit file "myservice.service" in the directory /etc/systemd/system/

    # /etc/systemd/system/myservice.service 
    Description=My Service
  • Reload systemd to pick up your changed/new unit files with: systemctl daemon-reload

  • Enable and start the new service

    systemctl enable myservice.service
    systemctl start myservice.service
  • Brilliant thanks, that was exactly what I needed. Did some reading up and managed to implement – fightstarr20 Jan 29 '19 at 14:42

You launch it using a systemd unit, like every other service.

There are numerous tutorials out on the Internet about how to set this up. Or you can just start with a skeleton unit something like:

Description=uWSGI instance to serve my project

ExecStart=/home/you/project/venv/bin/uwsgi --ini uwsgi.ini


There is no single answer, but you can use something like Supervisord:

Supervisor is a client/server system that allows its users to monitor and control a number of processes on UNIX-like operating systems.

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