Use integer instead of string for cidata uid

[afbjorklund]

sudo cloud-init schema --system

Cloud config schema deprecations: users.0.uid: Changed in version 22.3.
The use of string type is deprecated. Use an integer instead.

• Generated user-data is failing cloud-config schema validation #2265

It was already an integer, in the template data and in LIMA_CIDATA_UID

[jandubois]

Cloud config schema deprecations: users.0.uid: Changed in version 22.3.

22.3 was less than 2 years ago.

Did you verify that the "old" distros we support, like almalinux-8, centos-stream-8, etc. all ship with cloud-init 22.3 or later?

[afbjorklund]

Did you verify that the "old" distros we support, like almalinux-8, centos-stream-8, etc. all ship with cloud-init 22.3 or later?

I did not.

And apparently that was a bad thing, the previous behaviour (before 22.1) was to ignore all integer UIDs...

canonical/cloud-init@2837b83 in 22.1

canonical/cloud-init@45b517a in 22.2

[afbjorklund]

Living with the deprecated type seems less the lesser evil here, similar to ssh-authorized-keys

Especially since the cloud-init code has this wonderful hack, anyway:

        if "uid" in kwargs.keys():
            kwargs["uid"] = str(kwargs["uid"])

https://bugs.launchpad.net/ubuntu/+source/cloud-init/+bug/1875772