CI: Warning Unable to restore router IP from filesystem in WireGuard tests #29715
Description
Happened in https://github.com/cilium/cilium/actions/runs/7132840574/job/19424351381
2023-12-07T19:23:01.902716091Z level=warning msg="Unable to restore router IP from filesystem" error="provided IP is not in the valid range. The range of valid IPs is 10.244.0.0/24" ipAddr=10.0.1.128 subsys=daemon
2023-12-07T19:23:01.902719226Z level=warning msg="Router IP could not be re-allocated. Need to re-allocate. This will cause brief network disruption" subsys=daemon
This is caused by the WireGuard encryption strict mode tests, which appear to change the cluster pool pod CIDR. It's unclear to me if it could be avoided. Maybe by cleaning up old endpoints before reinstalling?
Warning currently allowlisted at https://github.com/cilium/cilium/blob/5a82225cd713ed4480324a3ebfce449196cbbd3c/test/helpers/cons.go#L248C1-L248C41.