Schema error appears during boot regarding network v2 config with NoCloud

[dermotbradley]

Bug report

Whilst booting the console output shows:

2024-01-28 20:53:11,605 - schema.py[WARNING]: Invalid network-config provided: Please run 'sudo cloud-init schema --system' to see the schema errors.

running cloud-init schema --system shows:

Skipping network-config schema validation. No network schema for version: 2

The console-displayed message should not appear as the network-config provided is not invalid, the schema checker merely doesn't know how to validate it.

Steps to reproduce the problem

Environment details

• Cloud-init version: git Main
• Operating System Distribution: Alpine Linux
• Cloud provider, platform or installer type: NoCloud with ISO

cloud-init logs

[Chad Smith]

Thanks for the bug @dermotbradley I'll put up a PR shortly to address this