Neither host has a DNS record, so both were unreachable and cert-manager
has been failing to renew their certificates since 6 April. DSM stays
reachable on the LAN at 192.168.1.99. The nas app only held that ingress
and its ExternalName service, so it goes entirely.
Reverts 8c2bd89. The NAS had fallen back to a DHCP address (.10), which
also moved the UniFi controller it hosts away from where the gateway
and access points inform, and left the Longhorn backup target at
nfs://192.168.1.99 unreachable. It now has 192.168.1.99 set statically
in DSM again, so everything that pointed at .99 works without changes.
The NAS moved from 192.168.1.99 to .10, so the backup storage location
has been Unavailable ("no route to host"). Every backup since at least
26 July failed, and 154 expired ones are stuck in Deleting because Velero
can't reach the bucket to remove them. MinIO answers on .10:9000 and DSM
on .10:5000.
Ruben Hensen