[] - all system services confirmed offline from production use
[] - set all icinga checks to maint mode/disabled while reclaim/decommmission takes place.
[] - remove system from all lvs/pybal active configuration
[] - any service group puppet/hiera/dsh config removed
[] - replace with role::spare::system
START NON-INTERRUPPTABLE STEPS
[] - disable puppet on host
[] - remove all remaining puppet references (include role::spare)
[] - power down host
[] - disable switch port
[] - switch port assignment noted on this task (for later removal)
[] - remove production dns entries
[] - puppet node clean, puppet node deactivate, salt key removed
END NON-INTERRUPPTABLE STEPS
[] - system disks wiped (by onsite)
[] - system unracked and decommissioned (by onsite), update racktables with result
[] - switch port configration removed from switch once system is unracked.
[] - mgmt dns entries removed.