Reimage + rename this server to the new naming scheme.
Timeline would be:
- failover labnet1004 to cloudnet1003
- disable puppet in labnet1004
- merge puppet patch to rename and get the new debian installer working
- merge dns patch to add the new FQDNs (partial, the old mgmt names still remains)
- run the wmf-auto-reimage-host script
- merge DNS cleanup patch
- racktables update
- get the physical relabeling done (T199921)
- done
Same happened to labvirt1021/cloudvirt1021 (see T199107 and T199132).