[Koha-devel] Switching from SysV to Systemd for koha-common service

[Fridolin SOMERS]

Hi,

Very good idea :D

We at Biblibre have build a systemd unit for Starman and Zebra, it is 
quite simple. But we dont use several Koha.

In ordre to implement for several Koha, I think we should use %i vars in 
systemd unit.
Like it is in openvpn :
https://github.com/OpenVPN/openvpn/blob/master/distro/systemd/openvpn-client%40.service.in

It allows to call any unit (for example demo Koha) :
systemctl start koha-common at demo.

About restart :
I see you can define a different kill signal than stop :
https://www.freedesktop.org/software/systemd/man/systemd.kill.html#RestartKillSignal=

But you may use "reload" action instead :
https://www.freedesktop.org/software/systemd/man/systemd.service.html#ExecReload=

We use reload for starman it is more soft (it acts like apache gracefull 
restart).

I attach some files here :
https://git.biblibre.com/biblibre/koha-nginx/src/branch/master/etc/systemd/system

Feel free to ask for help.

Best regards,

Le 25/03/2021 à 04:42, dcook at prosentient.com.au a écrit :
> Hi all,
> 
> I was just installing koha-common, as you do, and I noticed the 
> following warning:
> 
> Failed to enable unit: Unit 
> /run/systemd/generator.late/koha-common.service is transient or generated.
> 
> This is the product of the following command: “update-rc.d koha-common 
> enable”
> 
> I think I was able to work around it by running the following: 
> “/lib/systemd/systemd-sysv-install enable koha-common”
> 
> However, I’m thinking it is probably time to switch koha-common from 
> SysV to Systemd. We’ll lose a bit of functionality for the “status” 
> option, but otherwise it shouldn’t be too bad. I think we’ll lose the 
> “restart” as well as I think the systemd restart is a “stop” and “start”.
> 
> David Cook
> 
> Software Engineer
> 
> Prosentient Systems
> 
> Suite 7.03
> 
> 6a Glen St
> 
> Milsons Point NSW 2061
> 
> Australia
> 
> Office: 02 9212 0899
> 
> Online: 02 8005 0595
> 
> 
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> 

-- 
Fridolin SOMERS <fridolin.somers at biblibre.com>
Software and system maintainer 🦄
BibLibre, France