Page MenuHomePhabricator

decommission mwmaint2001.codfw.wmnet
Closed, ResolvedPublicRequest

Description

This task will track the decommission-hardware of server mwmaint2001.codfw.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.

mwmaint2001.codfw.wmnet

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

Change 667281 had a related patch set uploaded (by Dzahn; owner: Dzahn):
[operations/puppet@production] DHCP: remove mwmaint2001.codfw.wmnet

https://gerrit.wikimedia.org/r/667281

Change 667288 had a related patch set uploaded (by Dzahn; owner: Dzahn):
[operations/puppet@production] mariadb: remove mwmaint2001 from production-m5 grants

https://gerrit.wikimedia.org/r/667288

Change 667293 had a related patch set uploaded (by Dzahn; owner: Dzahn):
[operations/puppet@production] site: remove mwmaint2001.codfw.mwnet

https://gerrit.wikimedia.org/r/667293

Change 667293 merged by Dzahn:
[operations/puppet@production] site: remove mwmaint2001.codfw.mwnet

https://gerrit.wikimedia.org/r/667293

Change 667281 merged by Dzahn:
[operations/puppet@production] DHCP: remove mwmaint2001.codfw.wmnet

https://gerrit.wikimedia.org/r/667281

Dzahn changed the task status from Stalled to Open.Mar 2 2021, 10:44 PM

Change 667958 had a related patch set uploaded (by Dzahn; owner: Dzahn):
[operations/puppet@production] site: remove mwmaint2001

https://gerrit.wikimedia.org/r/667958

cookbooks.sre.hosts.decommission executed by dzahn@cumin1001 for hosts: mwmaint2001.codfw.wmnet

  • mwmaint2001.codfw.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

Change 667958 merged by Dzahn:
[operations/puppet@production] site: remove mwmaint2001

https://gerrit.wikimedia.org/r/667958

Dzahn removed a project: Patch-For-Review.
Dzahn updated the task description. (Show Details)

Change 667288 abandoned by Dzahn:
[operations/puppet@production] mariadb: remove mwmaint2001 from production-m5 grants

Reason:
merged into Ief00af96c382abd

https://gerrit.wikimedia.org/r/667288

Change 667240 had a related patch set uploaded (by Dzahn; owner: Dzahn):
[operations/puppet@production] mariadb: prod-m5 grants: add mwmaint2002, rm mwmaint2001

https://gerrit.wikimedia.org/r/667240

Change 667240 merged by Kormat:
[operations/puppet@production] mariadb: prod-m5 grants: add mwmaint2002, rm mwmaint2001

https://gerrit.wikimedia.org/r/667240

Papaul updated the task description. (Show Details)

complete