kubernetes

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Joe Betz e0011c7236 Support emulation versioning of formats

We plan to add more formats in upcoming releases.
This tracks which formats are introduced at a version.

Unrecognized formats remain ignored. That is,
if a format is not supported at the emulated version,
the format is not enforced. This differs from typical
field handling, where unsupported field values are
forbidden. This is pre-existing behavior and is
in compliance with JSON Schema's format handling.

Ratcheting of custom resources helps with the introduction
of new formats. When a cluster is upgraded to a version
of Kubernetes that supports a format already set (but not enforced)
in a custom resource definition, the format will start
being enforced against custom resources. Ratcheting will
tolerate unchanged values of custom resources, even
if the value is not valid according to the format.

2025-03-13 11:09:12 -04:00