[systemd-devel] Requires and After

[Michael Chapman]

On Wed, 2 Jan 2019, Reindl Harald wrote:
> Am 02.01.19 um 09:14 schrieb Michael Chapman:
> > I have two services on my system, A.service and B.service, where A.service 
> > Wants=B.service but is ordered Before=B.service. The reason for this is 
> > that when I start A I want B to be automatically started too, but B cannot 
> > function without A being active.
> 
> this is insane

Please reduce your hyperbole.

> when B cannot work without A then B wants A and not the other way

I should have probably been more precise with "cannot function". B can 
actually function without A. It's just useless if it were to do so.

Moreover, the fact that B is started as a side-effect of starting A is 
important. I _do not_ want to have to start B explicitly. As I noted in 
another email, I've got some systems where B does not even exist. Having 
every system just have an A.timer that starts A (and on some of them, B as 
well) is very convenient.