[ovirt-users] NetworkManager with oVirt version 4.2.0

[Edward Haas]

On Sun, Feb 4, 2018 at 10:01 PM, Vincent Royer <vincent at epicenergy.ca>
wrote:

> I had these types of issues as well my first time around, and after a
> failed engine install I haven't been able to get things cleaned up, so I
> will have to start over. I created a bonded interface on the host before
> the engine setup. but once I created my first VM and assigned bond0 to it,
> the engine became inaccessible the moment the VM got an IP from the
> router.
>

Please clarify what does it mean to "assign bond0 to it".  A vnic can be
defined on a network (using vnic profiles).
If your Engine is inaccessible, try to understand what changed in the
network, perhaps something collided (duplicate IP/s, routes, mac/s etc).


> What is the preferred way to setup bonded interfaces?  In Cockpit or nmcli
> before hosted engine setup?  Or proceed with only one interface then add
> the other in engine?
>

All should work.


>
> Is it possible, for example, to setup bonded interfaces with a static
> management IP on vlan 50 to access the engine, and let the other VMs grab
> DHCP IPs on vlan 10?
>

Sure it is, one is the management (vlan 50) network and the other a VM
network (vlan 10).


>
>
> On Feb 3, 2018 11:31 PM, "Edward Haas" <ehaas at redhat.com> wrote:
>
>
>
> On Sat, Feb 3, 2018 at 9:06 AM, maoz zadok <maozza at gmail.com> wrote:
>
>> Hello All,
>> I'm new to oVirt, I'm trying with no success to set up the networking on
>> an oVirt 4.2.0 node, and I think I'm missing something.
>>
>> background:
>> interfaces em1-4 is bonded to bond0
>> VLAN configured on bond0.1
>> and bridged to ovirtmgmt for the management interface.
>>
>> I'm not sure its updated to version 4.2.0 but I followed this post:
>> https://www.ovirt.org/documentation/how-to/networking/bondin
>> g-vlan-bridge/
>>
>
> It looks like an old howto, we will need to update or remove it.
>
>
>>
>> with this setting, the NetworkManager keep starting up on reboot,
>> and the interfaces are not managed by oVirt (and the nice traffic graphs
>> are not shown).
>>
>
> For the interfaces to be owned by oVirt, you will need to add the host to
> Engine.
> So I would just configure everything up to the VLAN (slaves, bond, VLAN)
> with NetworkManager prior to adding it to Engine. The bridge should be
> created when you add the host.
> (assuming the VLAN you mentioned is your management interface and its ip
> is the one used by Engine)
>
>
>>
>>
>>
>>
>> my question:
>> Is  NetworkManager need to be disabled as in the above post?
>>
>
> No (for 4.1 and 4.2)
>
> Do I need to manage the networking using (nmtui) NetworkManager?
>>
>
> You better use cockpit or nmcli to configure the node before you add it to
> Engine.
>
>
>>
>> Thanks!
>> Maoz
>>
>>
>>
>>
>>
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>>
>>
>
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