[systemd-devel] Service not restarting after Condition failed

[D.S. Ljungmark]

On 24/11/14 20:30, Umut Tezduyar Lindskog wrote:
> Hi
> 
> On Monday, November 24, 2014, D.S. Ljungmark <spider at aanstoot.se
> <mailto:spider at aanstoot.se>> wrote:
> 
>     On 10/11/14 23:09, Lennart Poettering wrote:
>     > On Thu, 30.10.14 18:47, D.S. Ljungmark (spider at aanstoot.se
>     <javascript:;>) wrote:
>     >
>     >> Hi
>     >>  we have a service set to:
>     >> ConditionFileNotEmpty=
>     >>
>     >> and
>     >>
>     >> Restart=Always
>     >>
>     >>
>     >> This combination would (in my feebled mind) cause the service to
>     restart
>     >> once the Condition was fulfilled, but that doesn't seem to be the
>     >> case.
>     >
>     > Conditions are something that are on-time evaluated right before we
>     > would start a unit, and cause this starting to be shortcut. That's all
>     > really. Restarts are only triggered when a running service dies, and
>     > the start job queued by that will then check the conditions again. If
>     > the condition doesn't hold then this start will not be executed, and
>     > hence no restart ever again either...
>     >
>     >> Is there a way I can get a service to restart even after it has
>     been set
>     >> as inactive (dead) "start condition failed"?
>     >
>     > Nope, conditions are not for that. For the specific check of
>     > file-not-empty there's no nice way to handle this, however for
>     > directory-not-empty you could set up DirectoryNotEmpty=...
>     >
>     >> Should I simply remove the Condition, or something else?
>     >
>     > What precisely are you trying to do?
>     >
>     > Lennart
> 
>     Basically, some files (config & certificates) may not exist on a system
>     until it's provisioned properly, something that may take a while ( a few
>     days)
> 
>     After provisioning, we want the services depending on those file to
>     start automatically.
> 
>  
> Path unit files should work for
> you,  http://www.freedesktop.org/software/systemd/man/systemd.path.html
> 
> Umut

Thanks, those would work well. I take it those should be in combination
to the ConditionFileNotEmpty=  for the same files?



//D.S.


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