# k8s.rollout_restart (layer 1 with signature, layer 2 in the gray zone)

When: api or front pods are degraded without a configuration change (readiness failing, stale connections after a network incident, memory stress that cleared). Impact small, reversible.

Procedure (harness action k8s.rollout_restart, target {namespace: demo, deployment: api}): the harness runs the equivalent of `kubectl -n demo rollout restart deployment/api`; pods are replaced one by one under the PodDisruptionBudget. Verify with `kubectl -n demo rollout status deployment/api` and probe_success{target="alb"} back to 1 within 2 minutes. Undo: none needed.