db1056 has migrated its functionality to other host, decom or reuse its parts (but it is too old to be used as a reliable db host).
[x] - all system services confirmed offline from production use: Removed from mediawiki-config: https://gerrit.wikimedia.org/r/#/c/430599/
[x] - set all icinga checks to maint mode/disabled while reclaim/decommmission takes place.
[x] - remove system from all lvs/pybal active configuration
[x] - any service group puppet/hiera/dsh config removed
[x] - remove site.pp (replace with role::spare if system isn't shut down immediately during this process.):
* Host set to spare: https://gerrit.wikimedia.org/r/430884
START NON-INTERRUPPTABLE STEPS
[] - disable puppet on host
[] - power down host
[] - disable switch port
[] - switch port assignment noted on this task (for later removal)
[] - remove all remaining puppet references (include role::spare)
[] - remove production dns entries
[] - puppet node clean, puppet node deactivate
[] - remove dbmonitor entries on neodymium/sarin: sudo curl -X DELETE https://debmonitor.discovery.wmnet/hosts/${HOST_FQDN} --cert /etc/debmonitor/ssl/cert.pem --key /etc/debmonitor/ssl/server.key
END NON-INTERRUPPTABLE STEPS
[] - mark disk #10 as non-usable, it has smart errors. - try to wipe, if it won't degauss it.
[] - system disks wiped (by onsite)
[] - IF DECOM: system unracked and decommissioned (by onsite), update racktables with result
[] - IF DECOM: switch port configration removed from switch once system is unracked.
[] - IF DECOM: add system to decommission tracking google sheet
[] - IF DECOM: mgmt dns entries removed.