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decommission db1088.eqiad.wmnet
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This task will track the decommission-hardware of server db1088.eqiad.wmnet

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.


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 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.
  • - IF RECLAIM: set netbox state to 'inventory' and hostname to asset tag

Event Timeline

Marostegui moved this task from Triage to Blocked on the DBA board.

Not ready yet, let's give db1168 (its replacement a few days to make sure it runs fine)

Mentioned in SAL (#wikimedia-operations) [2021-03-04T06:25:03Z] <marostegui@cumin1001> dbctl commit (dc=all): 'Depool db1088 T276025', diff saved to and previous config saved to /var/cache/conftool/dbconfig/20210304-062503-marostegui.json

Host depooled - will leave it depooled till next week before decommissioning it.

Change 668253 had a related patch set uploaded (by Marostegui; owner: Marostegui):
[operations/puppet@production] db1088: Disable notifications

Change 668253 merged by Marostegui:
[operations/puppet@production] db1088: Disable notifications

Change 671028 had a related patch set uploaded (by Marostegui; owner: Marostegui):
[operations/puppet@production] db1088: Remove it from dbctl

Change 671028 merged by Marostegui:
[operations/puppet@production] db1088: Remove it from dbctl

Mentioned in SAL (#wikimedia-operations) [2021-03-12T06:11:18Z] <marostegui@cumin1001> dbctl commit (dc=all): 'Remove db1088 from dbctl T276025', diff saved to and previous config saved to /var/cache/conftool/dbconfig/20210312-061118-marostegui.json

Change 671135 had a related patch set uploaded (by Marostegui; owner: Marostegui):
[operations/puppet@production] mariadb: Decommission db1088

Change 671135 merged by Marostegui:
[operations/puppet@production] mariadb: Decommission db1088

cookbooks.sre.hosts.decommission executed by marostegui@cumin1001 for hosts: db1088.eqiad.wmnet

  • db1088.eqiad.wmnet (PASS)
    • Downtimed host on Icinga
    • Found physical host
    • Downtimed management interface on Icinga
    • Wiped bootloaders
    • Powered off
    • Set Netbox status to Decommissioning and deleted all non-mgmt interfaces and related IPs
    • Removed from DebMonitor
    • Removed from Puppet master and PuppetDB
Marostegui added a project: ops-eqiad.
Marostegui removed a project: DBA.
Cmjohnson updated the task description. (Show Details)