[libvirt] [PATCH] Openvz: how to use a nondefault config

Daniel P. Berrange berrange at redhat.com
Fri Mar 27 11:14:08 UTC 2009

On Mon, Mar 16, 2009 at 06:12:07PM +0300, Anton Protopopov wrote:
> Hi all.
> When libvirt creates an OpenVZ machine, it does smth like
>   # vzctl create $ctid --ostemplate `ostemplate`
> And we can't specify an --config `config` argument. In this case vzctl
> chooses
> a default config file (a value of CONFIG variable from /etc/vz/vz.conf).
> But there are cases when we want to specify a config file directly, as in
>   # vzctl create $ctid --ostemplate `ostemplate` --config `config`
> I think, that we can try to use the same `ostemplate` name as --config
> value, if corresponding template exists,
> i.e., if there is a file /etc/vz/conf/ve-`ostemplate`.conf-sample, libvirt
> will run a command
>   # vzctl create $ctid --ostemplate `ostemplate` --config `ostemplate`
> Otherwise, it will run it's default command
>   # vzctl create $ctid --ostemplate `ostemplate`
> (the same arguments.)

I don't particularly like the fact that there are all these extra
hidden config parameters in the template config. We should aim to
get these all exposed in the libvirt XML and/or APIs as applicable.
That said, this patch you are suggesting seems like a reasonable
approach for this point in time.

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