limactl start template://ubuntu-24.10 creates an instance named ubuntu-24.10, while limactl start ./ubuntu-24.10.yaml creates ubuntu-24-10

[AkihiroSuda]

Probably ubuntu-24-10 is the expected result?

[jandubois]

while limactl start ./ubuntu-24.10.yaml creates ubuntu-24-10

I wasn't aware if this, and consider it a bug (or at least a misfeature). I commented further in #2815 (review) and below.

[jandubois]

I don't understand why we would rename . to -, but allow _ in instance names, which is also invalid in host names.