[ovirt-users] Self hosted single server network requirements

[Mark Steckel]

----- 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.

> 
> 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.


> 
> > Thanks
> > Mark
> 
> -derek
> 
> > ----- Paul-Erik Törrönen <poltsi at poltsi.fi> wrote:
> >> On 2016-11-19 11:28, Joop wrote:
> >> > I have never setup such a server but if you create the ovirtmgmt bridge
> >> > first then the deploy will leave it alone and you won't lose network
> >> > connectivity.
> >> 
> >> I've set up almost the described combination (I do run the vm-engine on 
> >> a separate laptop), and found that running the commandline stuff in a 
> >> screen helps a lot, the setup commands can then complete instead of 
> >> being interrupted as your (ssh-)session is killed.
> >> 
> >> I also enountered the same issue of network connection loss as the 
> >> ovirtmgmt-interface took over my primary connection, but I was able to 
> >> continue as I  had several network devices on my hardware which I had 
> >> already configured, and was able to access the server through them.
> >> 
> >> If you only have one network interface, then I would recommend running 
> >> the commands in a screen, and in the case of losing the connection, 
> >> reconnect to the screen through the KVM.
> >> 
> >> My 0.02€
> >> 
> >> Poltsi
> >> _______________________________________________
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> >> Users at ovirt.org
> >> http://lists.ovirt.org/mailman/listinfo/users
> >
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> 
> -- 
>        Derek Atkins                 617-623-3745
>        derek at ihtfp.com             www.ihtfp.com
>        Computer and Internet Security Consultant