Server Lifecycle/reclaim checklist

This checklist is able to be copied and pasted into phabricator hardware request tasks for reclaiming systems to spare or decom.

[] - 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
[] - remove site.pp (replace with role::spare::system if system isn't shut down immediately during this process.)

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

END NON-INTERRUPPTABLE STEPS

[] - system disks wiped (by onsite)
[] - IF DECOM: system unracked and decommissioned (by onsite), update Netbox with result
[] - IF DECOM: switch port configration removed from switch once system is unracked.
[] - IF DECOM: mgmt dns entries removed.
[] - IF RECLAIM: system added back to spares tracking (by onsite)