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decommission db2091
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Description

This task will track the decommission-hardware of server db2091
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.

db2091

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

Event Timeline

Change 810153 had a related patch set uploaded (by Marostegui; author: Marostegui):

[operations/puppet@production] instances.yaml: Remove db2091 from dbctl

https://gerrit.wikimedia.org/r/810153

Change 810153 merged by Marostegui:

[operations/puppet@production] instances.yaml: Remove db2091 from dbctl

https://gerrit.wikimedia.org/r/810153

Mentioned in SAL (#wikimedia-operations) [2022-07-01T06:00:00Z] <marostegui@cumin1001> dbctl commit (dc=all): 'Remove db2091 from dbctl T311803', diff saved to https://phabricator.wikimedia.org/P30703 and previous config saved to /var/cache/conftool/dbconfig/20220701-060000-marostegui.json

Change 810155 had a related patch set uploaded (by Marostegui; author: Marostegui):

[operations/puppet@production] db2091: Disable notifications

https://gerrit.wikimedia.org/r/810155

Change 810155 merged by Marostegui:

[operations/puppet@production] db2091: Disable notifications

https://gerrit.wikimedia.org/r/810155

@Papaul if you want to label this in anyway: DIMM A1 just gave memory errors. Just making sure we know and we don't reuse that DIMM for anything else in the future.

Change 810715 had a related patch set uploaded (by Marostegui; author: Marostegui):

[operations/puppet@production] mariadb: Decommission db2091

https://gerrit.wikimedia.org/r/810715

Change 810715 merged by Marostegui:

[operations/puppet@production] mariadb: Decommission db2091

https://gerrit.wikimedia.org/r/810715

cookbooks.sre.hosts.decommission executed by marostegui@cumin2002 for hosts: db2091.codfw.wmnet

  • db2091.codfw.wmnet (PASS)
    • Downtimed host on Icinga/Alertmanager
    • Found physical host
    • Downtimed management interface on Icinga/Alertmanager
    • Wiped all swraid, partition-table and filesystem signatures
    • 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 updated the task description. (Show Details)
Marostegui added a project: ops-codfw.

Ready for you @Papaul!

Papaul updated the task description. (Show Details)

complete