@jkatz
I ran into the same issue when trying to configure a network adapter with cloudbase-init. The documentation says that the MAC address value is optional but in reality it is required.
In my case I want Xen Orchestra to choose a unique MAC during deployment, and I since I am deploying from a template, the NIC name is a known value. The fix that ended up working for me was to modify the networkconfig.py file in cloudbase-init so that the NIC name is required and the MAC address is optional.
I ended up making some additional changes to allow for the network-config v2 format along with the existing v1 support and some additional logic to aid in setting the dns search domains (I can't recall if this was originally supported or not but I had issues getting it to work with the original networkconfig.py file)
This file needs to replace the existing one that is installed in the C:\Program Files\Cloudbase Solutions\Cloudbase-Init\Python\Lib\site-packages\cloudbaseinit\plugins\common\ directory. To replace it you should make sure that the cloudbase-init service is stopped, then replace the file.
Once this file is replaced, delete the pycache folder in the same parent folder as networkconfig.py - this will ensure that python recompiles this file on service start. Start the cloudbase-init service and confirm that you see a new pycache get created.
I'm not a python programmer by trade so others may be able to point out areas for improvement but this ended up working for me and I wanted to share in case it could help others needing to deploy new servers without manually specifying a new MAC address. Below is an example network-config v2 format that works with the updated file.
version: 2
ethernets:
Ethernet 2:
dhcp4: false
addresses:
- 10.20.30.10/24
nameservers:
addresses:
- 10.20.5.12
- 10.20.5.13
- 10.20.5.14
search:
- intranet.domain.org
- domain.org
- public-domain.org
routes:
- to: default
via: 10.20.30.1
Updated networkconfig.py file:
networkconfig.py.txt
