kube_inventory input plugin: add pod UID to kubernetes_pod_container #18165
Description
Use Case
In some cases, subsequent pods have the same name (e.g. when pods are only by a StatefulSet).
In these cases, the kubernetes_pod_container metric cannot indicate which one of the pods it is, as there's only a pod_name tag and no pod_uid tag.
Expected behavior
Provide a pod_uid tag in kubernetes_pod_container metric.
Actual behavior
No pod_uid tag.
Additional info
Briefly looking at the plugin's code, it seems quite easy to do, so I'm willing to submit a PR for that if you accept the suggestion.