Re: External health Check Process

[Steve Litt <slitt@troubleshooters.com>]

On Fri, 23 Oct 2020 13:44:55 +0000
"Laurent Bercot" <ska-supervision@skarnet.org> wrote:

> >I just miss the elegance of the solution: I personally want to model
> >one service with one s6 service. For me it would mean thinking about
> >a wrapper around s6 to get that. Maybe I get now the slew thing.  
> 
>   The thing is, s6 is a *process supervision* suite, so one s6
> "service" is really one long-running process. When you want health
> checks, you have two long-running processes: your daemon, and your
> health checker. So two s6 "services" is really the most elegant, most
> idiomatic and most natural solution.
> 
>   What you could have, on the other hand, is a s6-rc bundle, that 
> contains
> both your daemon and your health checker: so you would be able to
> handle both the daemon and the health checker (2 longruns) with a
> single s6-rc/svctl command, using the name of the bundle.
> 
>   It's probably something that I can add to the next version of s6-rc:
> a command or an option to automatically add a health checker service
> to a longrun that is declared in the database, so you wouldn't have to
> write the health checker longrun manually. How does that sound?

I'd poll s6 users, and if less than 1/2 eagerly want this new feature,
I'd leave well enough alone.
  
SteveT

Steve Litt 
Autumn 2020 featured book: Thriving in Tough Times
http://www.troubleshooters.com/thrive