description: Number of seconds after the container has started
                      before readiness probes are initiated.
                    format: int32
                    minimum: 0
                    type: integer
                  periodSeconds:
                    description: How often (in seconds) to perform the probe.
                    format: int32

- Kubelets configured to rotate client certificates now publish a `certificate_manager_server_ttl_seconds` gauge metric indicating the remaining seconds until certificate expiration. ([#91148](https://github.com/kubernetes/kubernetes/pull/91148), [@liggitt](https://github.com/liggitt)) [SIG Auth and Node]