We currently have a trunk established to all labvirts. This trunk allows both the labs-hosts and labs-instances VLAN in eqiad, and the labs-instances VLAN in labtest (codfw). The most probable origin is labvirt's originally had a single interface connected and sub-interfaces for managment and instance traffic.
We cannot make use of the trunking due to our current tpology:
nova.conf
network_manager=nova.network.manager.FlatDHCPManager
But it adds complexity, and complicates testing.
Puppet config related:
hieradata/common.yaml: network_flat_interface: 'eth1.1102'
hieradata/common.yaml: network_flat_tagged_base_interface: 'eth1'
hieradata/common.yaml: network_flat_interface_vlan: '1102'
interface/manifests/tagged.pp: require_package('vlan')
interface::tagged { $novaconfig['network_flat_interface']:
base_interface => $novaconfig['network_flat_tagged_base_interface'],
vlan_id => $novaconfig['network_flat_interface_vlan'],
method => 'manual',
up => 'ip link set $IFACE up',
down => 'ip link set $IFACE down',
}
modules/openstack/templates/liberty/nova/nova.conf.erb:flat_interface=<%= @novaconfig["network_flat_interface"] %>
modules/role/manifests/labs/openstack/nova/compute.pp: interface::tagged { $novaconfig['network_flat_interface']:
modules/role/manifests/labs/openstack/nova/compute.pp: vlan_id => $novaconfig['network_flat_interface_vlan'],
modules/role/manifests/labs/openstack/nova/network.pp: interface::tagged { $novaconfig['network_flat_interface']:
modules/role/manifests/labs/openstack/nova/network.pp: vlan_id => $novaconfig['network_flat_interface_vlan'],
modules/role/manifests/labs/openstack/nova/compute.pp: base_interface => $novaconfig['network_flat_tagged_base_interface'],
modules/role/manifests/labs/openstack/nova/network.pp: base_interface => $novaconfig['network_flat_tagged_base_interface'],
modules/role/manifests/labs/openstack/nova/compute.pp: vlan_id => $novaconfig['network_flat_interface_vlan'],
modules/role/manifests/labs/openstack/nova/network.pp: vlan_id => $novaconfig['network_flat_interface_vlan'],