db1026 is ready to be decommissioned after its data was copied to db1096
[x] - all system services confirmed offline from production use: Removed from mediawiki-config: https://gerrit.wikimedia.org/r/#/c/375364/
[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/heira/dsh config removed
[x] - remove site.pp (replace with role::spare if system isn't shut down immediately during this process.):
* Set it to spare until @Cmjohnson starts his steps: https://gerrit.wikimedia.org/r/#/c/375365/
START NON-INTERRUPPTABLE STEPS
[x] - disable puppet on host
[x] - remove all remaining puppet references (include role::spare)
[x] - power down host
[x] - disable switch port & change switch port label to asset tag
[x] - remove production dns entries & remove hostname entries in mgmt dns
[x] - puppet node clean, puppet node deactivate, salt key removed
END NON-INTERRUPPTABLE STEPS
[] - system disks wiped (by onsite)
[] - remove hostname label, remove hostname from visible label field in racktables (by onsite)
[] - system added back to spares tracking (by onsite)