The new logstash servers are in place, we can start thinking about decommissioning the old ones. Note that we first need to ensure all log producers are migrated to `logstash.svc.eqiad.wmnet`.
[x] - all system services confirmed offline from production use
[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.)
START NON-INTERRUPPTABLE STEPS
[x] - disable puppet on host
[] - remove all remaining puppet references (include role::spare)
[x] - power down host
[x] - disable switch port
[x] - switch port assignment noted on this task (for later removal)
logstash1001
asw-a-eqiad:ge-4/0/13
logstash1002
asw-c-eqiad:ge-4/0/2
asw2-d-eqiad:ge-3/0/16
[] - 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 racktables 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)