Re: [qubes-users] Questions about non-standard services & selective start

[Rusty Bird]

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trueriver:
> Chris L recently showed me how to touch files in a VM to enable a
> standard service to start, in that case NetworkManager
> 
> https://groups.google.com/forum/#!topic/qubes-users/0_LUn4ha8Jg
> 
> I now want to do something similar with MySQL. I want to install it
> in a template, but have it actually start in only one of the AppVMs
> based on that.
> 
> Exactly what do I need to do in the template to activate the
> "conditionality" of the service start?

Assuming that you want conditional mysql.service startup, you can
create /etc/systemd/system/mysql.service.d/ in the template and save
some .conf file there (e.g. condition.conf) containing:

[Unit]
ConditionPathExists=/var/run/qubes-service/mysql
After=qubes-sysinit.service

Then run 'systemctl enable mysql.service' in the template, shut it
down, and enable the mysql Qubes service (in the Services tab of Qube
Settings for the VM, or by running 'qvm-service --enable thevm mysql'
in a dom0 terminal).

> Secondly, nothing ever shows up in the Qubes Settings tab for
> Services. It looks like it is designed to cover exactly this case,
> but there is never anything there to display or to enable with the
> big friendly green plus sign.
> 
> Is this a bug in Qubes, or a bug in my understanding?

You have to enter it manually. Qubes services don't necessarily relate
to systemd services unless there's some configuration like the above,
e.g. [/usr]/lib/systemd/system/NetworkManager.service.d/30_qubes.conf
which is shipped in Qubes by default.

Rusty
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[qubes-users] Questions about non-standard services & selective start

[trueriver]

Hi,

Chris L recently showed me how to touch files in a VM to enable a standard 
service to start, in that case NetworkManager

https://groups.google.com/forum/#!topic/qubes-users/0_LUn4ha8Jg

I now want to do something similar with MySQL. I want to install it in a 
template, but have it actually start in only one of the AppVMs based on that.

Exactly what do I need to do in the template to activate the "conditionality" 
of the service start?

Secondly, nothing ever shows up in the Qubes Settings tab for Services. It 
looks like it is designed to cover exactly this case, but there is never 
anything there to display or to enable with the big friendly green plus sign.

Is this a bug in Qubes, or a bug in my understanding?

The template in question is based on the standard Qubes Debian 9 template

MySQL was installed from the Orcale repos as it is important for one project 
that I keep in sync with the software on a particular server. (Yes, I know, I 
would prefer MariaDB and would prefer not to rely on repos outside Qubes, but 
needs must...) 

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