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decommission db1083.eqiad.wmnet
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Description

This task will track the decommission-hardware of server db1083.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.

db1083

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 changed the task status from Open to Stalled.Apr 29 2021, 6:56 AM
Marostegui created this task.
Marostegui moved this task from Triage to Blocked on the DBA board.

This is not yet ready, db1118 needs to be pooled, and once done, let's wait a week or so before decommissioning db1083.

db1118 has been pooled today. Let's give it a week

Mentioned in SAL (#wikimedia-operations) [2021-05-06T05:55:36Z] <marostegui@cumin1001> dbctl commit (dc=all): 'Depool db1083 T281445', diff saved to https://phabricator.wikimedia.org/P15796 and previous config saved to /var/cache/conftool/dbconfig/20210506-055535-marostegui.json

Change 685644 had a related patch set uploaded (by Marostegui; author: Marostegui):

[operations/puppet@production] db1083: Disable notifications

https://gerrit.wikimedia.org/r/685644

Change 685644 merged by Marostegui:

[operations/puppet@production] db1083: Disable notifications

https://gerrit.wikimedia.org/r/685644

Change 692311 had a related patch set uploaded (by Marostegui; author: Marostegui):

[operations/puppet@production] mysqld_exporter_config.py: Replace db1083

https://gerrit.wikimedia.org/r/692311

Change 692311 merged by Marostegui:

[operations/puppet@production] mysqld_exporter_config.py: Replace db1083

https://gerrit.wikimedia.org/r/692311

Change 692478 had a related patch set uploaded (by Marostegui; author: Marostegui):

[operations/puppet@production] instances.yaml: Remove db1083 from dbctl

https://gerrit.wikimedia.org/r/692478

Change 692478 merged by Marostegui:

[operations/puppet@production] instances.yaml: Remove db1083 from dbctl

https://gerrit.wikimedia.org/r/692478

Mentioned in SAL (#wikimedia-operations) [2021-05-18T06:29:48Z] <marostegui@cumin1001> dbctl commit (dc=all): 'Remove db1083 from dbctl T281445', diff saved to https://phabricator.wikimedia.org/P16033 and previous config saved to /var/cache/conftool/dbconfig/20210518-062947-marostegui.json

Marostegui changed the task status from Stalled to Open.May 18 2021, 6:29 AM
Marostegui updated the task description. (Show Details)
Marostegui moved this task from Blocked to In progress on the DBA board.

Change 692479 had a related patch set uploaded (by Marostegui; author: Marostegui):

[operations/puppet@production] mariadb: Decommission db1083

https://gerrit.wikimedia.org/r/692479

Change 692479 merged by Marostegui:

[operations/puppet@production] mariadb: Decommission db1083

https://gerrit.wikimedia.org/r/692479

cookbooks.sre.hosts.decommission executed by marostegui@cumin1001 for hosts: db1083.eqiad.wmnet

  • db1083.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 updated the task description. (Show Details)
Marostegui edited projects, added DC-Ops, ops-eqiad; removed Patch-For-Review.

Ready for DC-Ops

wiki_willy moved this task from Backlog to Decommission on the ops-eqiad board.
wiki_willy added a subscriber: wiki_willy.

All decom tasks are complete