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Re: Example of python service running under systemd?

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  Re: Example of python service running under systemd? Michael Torrie <torriem@gmail.com> - 2014-09-11 21:09 -0600

#77792 — Re: Example of python service running under systemd?

On 09/11/2014 08:29 PM, Chris Angelico wrote:
> On Fri, Sep 12, 2014 at 12:03 PM, Michael Torrie <torriem@gmail.com> wrote:
>> No, you you don't need to do this.  Systemd can handle all of that for
>> you.  Read up on the docs on creating systemd services.  Here's a little
>> blog post that has some good examples, both a non-daemonizing service
>> and a daemonizing service:
>>
>> http://patrakov.blogspot.com/2011/01/writing-systemd-service-files.html
>>
>> Any executable file can be turned into a daemon service with systemd
>> (whether or not it forks itself into the background).  Thus any python
>> script can easily be run from systemd.
> 
> I strongly recommend making a non-daemonizing service. It's so much
> easier to debug - there's one mode of operation, the script just runs.
> You can then run that directly in a terminal, or via tmux, or via
> systemd - and I've done all three with Yosemite. In fact, I think I
> have instances here on the LAN that are doing all three, right now!

Agreed 100%.  If you want to run on a system without systemd, I
recommend using supervisord[1] for turning your program into a daemon.
It also does not require the app to fork.

[1] http://supervisord.org/

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