Kubernetes 1.27 DNSラベル名ではないワークロードへの警告

https://kubernetes.io/docs/concepts/overview/working-with-objects/names/

https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG/CHANGELOG-1.27.md#api-change-3

Added warnings about workload resources (Pods, ReplicaSets, Deployments, Jobs, CronJobs, or ReplicationControllers) whose names are not valid DNS labels. (#114412, @thockin)

https://github.com/kubernetes/kubernetes/pull/114412

Pod names are ALLOWED to be DNS Subdomains, but when we use the pod name as the pod's hostname, we are sort of in conflict.

https://github.com/argoproj/argo-workflows/issues/11356