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decommission db1116
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Description

This task will track the decommission-hardware of server db1116.

With the launch of updates to the decom cookbook, the majority of these steps can be handled by the service owners directly. The DC Ops team only gets involved once the system has been fully removed from service and powered down by the decommission cookbook.

db1116

Steps for service owner:

  • - all system services confirmed offline from production use
  • - set all icinga checks to maint mode/disabled while reclaim/decommmission takes place. (likely done by script)
  • - remove system from all lvs/pybal active configuration
  • - any service group puppet/hiera/dsh config removed
  • - remove site.pp, replace with role(spare::system) recommended to ensure services offline but not 100% required as long as the decom script is IMMEDIATELY run below.
  • - login to cumin host and run the decom cookbook: cookbook sre.hosts.decommission <host fqdn> -t <phab task>. This does: bootloader wipe, host power down, netbox update to decommissioning status, puppet node clean, puppet node deactivate, debmonitor removal, and run homer.
  • - remove all remaining puppet references and all host entries in the puppet repo
  • - reassign task from service owner to DC ops team member and site project (ops-sitename) depending on site of server

End service owner steps / Begin DC-Ops team steps:

  • - system disks removed (by onsite)
  • - determine system age, under 5 years are reclaimed to spare, over 5 years are decommissioned.
  • - IF DECOM: system unracked and decommissioned (by onsite), update netbox with result and set state to offline
  • - IF DECOM: mgmt dns entries removed.

Event Timeline

Change 909647 had a related patch set uploaded (by Jcrespo; author: Jcrespo):

[operations/puppet@production] mariadb: Move db1102, db1116 to spares

https://gerrit.wikimedia.org/r/909647

Change 909647 merged by Jcrespo:

[operations/puppet@production] mariadb: Move db1102, db1116 to spares

https://gerrit.wikimedia.org/r/909647

cookbooks.sre.hosts.decommission executed by jynus@cumin1001 for hosts: db1116.eqiad.wmnet

  • db1116.eqiad.wmnet (WARN)
    • Downtimed host on Icinga/Alertmanager
    • Found physical host
    • Management interface not found on Icinga, unable to downtime it
    • Wiped all swraid, partition-table and filesystem signatures
    • Powered off
    • [Netbox] Set status to Decommissioning, deleted all non-mgmt IPs, updated switch interfaces (disabled, removed vlans, etc)
    • Configured the linked switch interface(s)
    • Removed from DebMonitor
    • Removed from Puppet master and PuppetDB

Change 909656 had a related patch set uploaded (by Jcrespo; author: Jcrespo):

[operations/puppet@production] mariadb: Remove final references to db1116 & db1102

https://gerrit.wikimedia.org/r/909656

Change 909656 merged by Jcrespo:

[operations/puppet@production] mariadb: Remove final references to db1116 & db1102

https://gerrit.wikimedia.org/r/909656

Jclark-ctr updated the task description. (Show Details)