1.30 tag also breaks PodIP.IP (which should be marked required)

[tatsuhiro-t]

What happened?

We have a CRD that contains PodStatus. After generating CRD with k8s v1.30.1, applying it failed with the message:

spec.validation.openAPIV3Schema.properties[status].properties[podIPs].items.properties[ip].default: Required value: this property is in x-kubernetes-list-map-keys, so it must have a default or be a required property

Similar issue reported in #124540 but different struct field.

What did you expect to happen?

CRD is applied successfully.

How can we reproduce it (as minimally and precisely as possible)?

Create CRD that has PodStatus and then apply it.

Anything else we need to know?

This is a leftover of #124553
PodIP.IP should also be marked required because it is +listMapKey=ip in PodStatus.PodIPs.

Kubernetes version

$ kubectl version
Client Version: v1.30.0
Kustomize Version: v5.0.4-0.20230601165947-6ce0bf390ce3

Cloud provider

OS version

# On Linux:
$ cat /etc/os-release
# paste output here
$ uname -a
# paste output here

# On Windows:
C:\> wmic os get Caption, Version, BuildNumber, OSArchitecture
# paste output here

Install tools

Container runtime (CRI) and version (if applicable)

Related plugins (CNI, CSI, ...) and versions (if applicable)

[tatsuhiro-t]

/sig api-machinery

[seans3]

/triage accepted

[Williams23678]

On Linux:

$ cat /etc/os-release

paste output here

$ uname -a

paste output here

On Windows:

C:> wmic os get Caption, Version, BuildNumber, OSArchitecture

paste output here