Unable to set untagged/tagged VLANs for VM interfaces through API

[ppmathis]

Issue type

[ ] Feature request
[X] Bug report
[ ] Documentation

Environment

• Python version: 3.5.3
• NetBox version: 2.3.2

Description

When trying to update the untagged or tagged VLANs of a virtual machine interface through the API, the request fails with an internal server error. This can be easily replicated in pynetbox, e.g.:

iface = nb.dcim.interfaces.get(<ID of Virtual Machine Interface>)
iface.untagged_vlan = <ID of valid VLAN>
# or: iface.tagged_vlans = [<VLAN ID 1>, <VLAN ID 2>, ...]
iface.save()

The reason behind this can be easily found within the source code, where the newly assigned VLANs are being compared against device.site - however in case of a virtual machine interface, the device attribute is always None, which leads to AttributeError: NoneType object has no attribute site.

[vink78]

I've the same issue with the webui.

For the REST API, I've a partial fix here vink78@619100e using virtualization/interfaces instead of dcim/interfaces (no validation check)

[jeremystretch]

The reason behind this can be easily found within the source code

That links to the DCIM interface serializer. VM interfaces utilize a different set of serializers. As @vink78 points out, the mode, untagged_vlan, and tagged_vlan fields are missing from the virtualization serializers.

I've the same issue with the webui.

This would need to be addressed under a separate issue.