[systemd-devel] [Need Help]: What Systemd service directives to use

[rajat rastogi]

Sietse, thanks a lot for suggestions.

I will give a try and test it.

On Thu, Aug 30, 2018 at 5:24 PM Sietse van Zanen <sietse at wizdom.nu> wrote:

> Hi Rajat,
>
>
> PropagateReload should indeed only effect reloads of units, not stops or
> starts, that's what bindsto and partof are for. Systemd should protect
> against reload loops, but it may also give an error. I have not used this
> situation myself so test it.
>
>
> -Sietse
>
>
> ________________________________
> From: rajat rastogi <rajat1.iitd at gmail.com>
> Sent: Thursday, August 30, 2018 11:24
> To: Sietse van Zanen
> Cc: systemd-devel at lists.freedesktop.org
> Subject: Re: [systemd-devel] [Need Help]: What Systemd service directives
> to use
>
> Hi Sietse,
>
> Thanks for reply.
>
> So if use mentioned directives as below
>
> A.service file
> ------------------
>
> PropagatesReloadTo=B
>
> B.service file
> ----------------
>
> PropagatesReloadTo=A
>
> Will not it create a loop? If yes, how to avoid it.
>
> I will re-phrase the requirements:
>
> 1. If process A is restarted then B should also be restarted
>
> 2. If process B is restarted then A should also be restarted
>
> 3. If process A is stopped then B should not be stopped
>
> 4. If process B is stopped then B should not be stopped
>
> For the above requirements, I want to know, what directives I need to add
> to service files for A & B.
>
> Regards,
> Rajat
>
> On Thu, Aug 30, 2018 at 1:19 PM Sietse van Zanen <sietse at wizdom.nu<mailto:
> sietse at wizdom.nu>> wrote:
> Hi Rajat,
>
>
> Take a look at BindsTo, PartOf, PropagatesReloadTo, ReloadPropagatedFrom
> and <
> https://www.freedesktop.org/software/systemd/man/systemd.unit.html#PropagatesReloadTo=>
> OnFailure. I think a combination of these should achieve what you want,
>
> https://www.freedesktop.org/software/systemd/man/systemd.unit.html#BindsTo=
> <
> https://www.freedesktop.org/software/systemd/man/systemd.unit.html#BindsTo
> >
>
>
>
> -Sietse
>
> ________________________________
> From: systemd-devel <systemd-devel-bounces at lists.freedesktop.org<mailto:
> systemd-devel-bounces at lists.freedesktop.org>> on behalf of rajat rastogi <
> rajat1.iitd at gmail.com<mailto:rajat1.iitd at gmail.com>>
> Sent: Thursday, August 30, 2018 09:07
> To: systemd-devel at lists.freedesktop.org<mailto:
> systemd-devel at lists.freedesktop.org>
> Subject: [systemd-devel] [Need Help]: What Systemd service directives to
> use
>
> Hi,
>
> My name is rajat.
>
> I have below requirement:
>
> There are 2 processes A and B.
>
> For the mentioned processes, below behaviour is required:
>
> 1. If process A is restarted then B should also be restarted
>
> 2. If process B is restarted then A should also be restarted
>
> For the above-desired behaviour, what Systemd directives I should use? How
> I can avoid circular dependency if any might appear?
>
> Thanks and Regards,
> Rajat Rastogi
>
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