Reimage + rename this server to the new naming scheme.
Timeline would be:
[x] disable puppet in labnet1003
[x] merge puppet patch to rename and get the new debian installer working
[x] 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 (TXXXX)
Same happened to labvirt1021/cloudvirt1021 (see T199107 and T199132).