[libvirt] [libvirt-guests] New feature ALWAYS_START

Daniel P. Berrange berrange at redhat.com
Wed Sep 23 11:50:57 UTC 2015

On Wed, Sep 23, 2015 at 10:50:58AM +0200, Martin Kletzander wrote:
> On Tue, Sep 22, 2015 at 07:33:30AM +0200, Marek Lukács wrote:
> >Hi,
> >
> >It will be nice feature to have configuration option
> >ALWAYS_START="$uri:$name $uri:name ..." in libvirt-guests
> >configuration file.
> >
> >If ON_BOOT is "start" and if ALWAYS_START is not empty, it iterates
> >over the ALWAYS_START and starts guests with same conditions (delays
> >etc.) before it starts guests from LISTFILE.
> >
> To be honest, I don't think that's _exactly_ what you want _just_ from
> libvirt itself; let me explain.
> >Benefits:
> >- guests are started with delays
> Delays that are done due to the guests are not something we should
> handle.  Guests and mainly the applications inside them should handle
> this gracefully.  Just delaying the starts is still error-prone.
> >- guests are started after host failure
> That's what libvirt-guests does already.  And if you want some domains
> to be started on every start, there's the 'autostart' parameter for
> domains.

Indeed, and I have a generall desire for libvirt-guests to go away
entirely and have all its functionality just built into libvirtd. So
I don't think taking functionality that already exist in libvirtd and
adding it to libvirt-guest is the right direction for us to take.

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