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decommission db1088.eqiad.wmnet
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Description

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.

db1088

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 https://phabricator.wikimedia.org/P14622 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

https://gerrit.wikimedia.org/r/668253

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

https://gerrit.wikimedia.org/r/668253

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

https://gerrit.wikimedia.org/r/671028

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

https://gerrit.wikimedia.org/r/671028

Mentioned in SAL (#wikimedia-operations) [2021-03-12T06:11:18Z] <marostegui@cumin1001> dbctl commit (dc=all): 'Remove db1088 from dbctl T276025', diff saved to https://phabricator.wikimedia.org/P14803 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

https://gerrit.wikimedia.org/r/671135

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

https://gerrit.wikimedia.org/r/671135

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 moved this task from Backlog to Decommission on the ops-eqiad board.
Cmjohnson added a subscriber: wiki_willy.
Cmjohnson updated the task description. (Show Details)