[ovirt-users] Self hosted single server network requirements

[Mark Steckel]

----- Derek Atkins <derek at ihtfp.com> wrote:
> Hi,
> 
> On Mon, November 21, 2016 4:21 pm, Mark Steckel wrote:
> >
> > ----- Derek Atkins <derek at ihtfp.com> wrote:
> >> Hi,
> >>
> >> Mark Steckel <mjs at fix.net> writes:
> >>
> >> > Thanks all who have responded so far.
> >> >
> >> > Advice so far seems to be:
> >> > * Use 'screen' when deploying. Easy
> >> > * Don't use/disable Network-Manager. Easy
> >> > * Preconfigure the ovirtmgmt bridge. I've got questions...
> >> >
> >> > The server has a public /32 as the primary IP, and a public /29 which
> >> > will be used for the VMs.
> >> >
> >> > Besides creating the ovirtmgmt bridge is there anything specific for
> >> > how I should configure it?
> >>
> >> My recommendation is that you just set up non-NM-controlled static
> >> network using your public /32.  Then the hosted-engine --deploy process
> >> should take that config and apply it to ovirtmgmt bridge.  At least,
> >> that's what happened for me when I did it.  I don't think you need to
> >> set up the ovirtmgmt bridge manually.
> >
> > This is what I initially did and then lost Internet access when the /32
> > was migrated to the ovirtmgmt bridge.
> >
> > I then used KVM console access to access the box, but it could no longer
> > access it's public gateway. It was at this point then I surmised that
> > something was amiss.
> 
> Hmm.  That's odd.  "If worked for me"..

Yeah, I was hoping that would be the case for me too. :-)

> 
> What did your /etc/sysconfig/network-scripts/ifcfg-<dev> file look like? 
> (And what does the ifcfg-ovirtmgmt file look like)?

Sadly, thinking I messed things up I scrubbed the machine and started over. I have a fresh CentOS 7.2 install waiting to run 'hosted-engine --deploy' on it once I have a better sense what if anything I need to prepare from a networking stand point.





> 
> >
> >>
> >> As for the /29 -- don't worry about it now, that would be a routing
> >> issue you can apply later.  Is it the same network as the /32?  Or is it
> >> a different network?
> >
> > Different.
> 
> I assume both networks are available on your host interface?

At this point only the /32 is on the host interface. The /29 is not assigned at the moment.

Mark



> 
> -derek
> 
> -- 
>        Derek Atkins                 617-623-3745
>        derek at ihtfp.com             www.ihtfp.com
>        Computer and Internet Security Consultant
>