12:39 a.m.
On Wed, 30 Jan 2019 02:37:00 -0000
"Brian Wilson" <briwils2(a)cisco.com> wrote:
> Would external OVN networks fit for your scenario?
We steered away from them when we couldn't figure out how to add a
VLAN Id on them without having to turn around and attach them to an
"outside network" anyway we would essentially end up with double the
networks with them in order to allow VMs to interface with Physical
Hardware on the Same Vlan IDs
If you would be interested in using Open vSwitch, which is still in
technology preview in oVirt and limited
https://ovirt.org/develop/release-management/features/network/openvswitch...
, there would be a way to connect OVN networks to physical VLANs:
1. Create a new cluster with switchtype OVS and ovirt-provider-ovn as
default network provider.
2. At least one host is added, in best case a new installed one, to the
new cluster.
3. Create a new network in oVirt, e.g. called 'trunk_net', and attach
this to the network interface on the hosts, which should transport the
data.
4. Create the OVN networks with port-security disabled,
provider:network_type vlan, provider:physical_network trunk_net and
the desired VLAN tag as provider:segmentation_id.
For me worked the following script utilizing the python
module 'openstack':
#!/bin/env python
from __future__ import print_function
import openstack
cloud = openstack.connect(cloud='ovirt')
provider = {
'network_type': 'vlan',
'segmentation_id': 2,
'physical_network': 'trunk_net'
}
print(cloud.create_network('ovn_vlan_2', port_security_enabled=False,
provider=provider))
The configuration of the python module 'openstack' is documented in
https://docs.openstack.org/python-openstackclient/pike/configuration/inde...
e.g. a file clouds.yaml in the working directory with content
similar to:
clouds:
ovirt:
auth:
auth_url: https://localhost:35357/v2.0
password: '123456'
username: admin@internal
verify: false
should do the trick.
Alternatively the configuration could be provided by the environment
variables: OS_USERNAME, OS_PASSWORD, OS_AUTH_URL and OS_CACERT.
In default configuration, the networks will be imported automatically
into oVirt and ready to be attached to VMs.
> If possible, would you be able to share the relevant part of
> engine.log?
I can try to kick off the playbook again and gather the logs
> From my point of view, it is a good idea to label the host interface
> after creating the networks, if many networks are created rapidly.
That could be a workable solution to an extent if we were to propop
them and then do the label assignment at the end, this specific use
case was adding to an existing label where there may be VMs using
networks on the label already
> Is this cluster of switchtype OVS or linux bridge?
Linux Bridge
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