Solution:

http://www.ovirt.org/OVirt_Administration_Guide#Sealing_a_Linux_Virtual_Machine_for_Deployment_as_a_Template

From: <users-bounces@ovirt.org> on behalf of Mark Steele <msteele@telvue.com>
Date: Friday 5 February 2016 at 15:07
To: "users@ovirt.org" <users@ovirt.org>
Subject: [ovirt-users] Clone / New VM from Template changing network interfaces

oVirt Engine Version: 3.5.0.1-1.el6

When cloning or creating a new vm, the network interfaces in /etc/udev/rules.d/70-persistent-net.rules is getting changed - rendering the new new VM un-networkable.

The original file looks like this:

# PCI device 0x1af4:/sys/devices/pci0000:00/0000:00:04.0/virtio1 (virtio-pci)

SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR(address)=="00:01:a4:a2:b4:04", ATTR(dev_id)=="0x0", ATTR(type)=="1", KERNEL=="eth*", NAME="eth1"

# PCI device 0x1af4:/sys/devices/pci0000:00/0000:00:03.0/virtio0 (virtio-pci)

SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR(address)=="00:01:a4:a2:b4:03", ATTR(dev_id)=="0x0", ATTR(type)=="1", KERNEL=="eth*", NAME="eth0"

# PCI device 0x1af4:/sys/devices/pci0000:00/0000:00:05.0/virtio2 (virtio-pci)

SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR(address)=="00:01:a4:a2:b4:05", ATTR(dev_id)=="0x0", ATTR(type)=="1", KERNEL=="eth*", NAME="eth2"

However, once the VM is either cloned or a new VM created from a template of this source VM, the file looks like this:

# PCI device 0x1af4:/sys/devices/pci0000:00/0000:00:04.0/virtio1 (virtio-pci)

SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR(address)=="00:01:a4:a2:b4:04", ATTR(dev_id)=="0x0", ATTR(type)=="1", KERNEL=="eth*", NAME="eth1"

# PCI device 0x1af4:/sys/devices/pci0000:00/0000:00:03.0/virtio0 (virtio-pci)

SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR(address)=="00:01:a4:a2:b4:03", ATTR(dev_id)=="0x0", ATTR(type)=="1", KERNEL=="eth*", NAME="eth0"

# PCI device 0x1af4:/sys/devices/pci0000:00/0000:00:05.0/virtio2 (virtio-pci)

SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR(address)=="00:01:a4:a2:b4:05", ATTR(dev_id)=="0x0", ATTR(type)=="1", KERNEL=="eth*", NAME="eth2"

# PCI device 0x1af4:/sys/devices/pci0000:00/0000:00:04.0/virtio1 (virtio-pci)

SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR(address)=="00:01:a4:a2:b4:10", ATTR(dev_id)=="0x0", ATTR(type)=="1", KERNEL=="eth*", NAME="eth3"

# PCI device 0x1af4:/sys/devices/pci0000:00/0000:00:03.0/virtio1 (virtio-pci)

SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR(address)=="00:01:a4:a2:b4:0f", ATTR(dev_id)=="0x0", ATTR(type)=="1", KERNEL=="eth*", NAME="eth5"

The 'correct' interfaces are still there, but out of sequence and there are two additional interfaces that do not belong there.

Ovirt admin console is showing the correct number of interfaces as seen in this image:

***

Mark Steele

CIO / VP Technical Operations | TelVue Corporation

TelVue - We Share Your Vision

800.885.8886 x128 | msteele@telvue.com | http://www.telvue.com

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