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Decommission elastic2049.codfw.wmnet
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Description

This task will track the decommission-hardware of server elastic2049.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.

elastic2049.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 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.

Event Timeline

Change 817346 had a related patch set uploaded (by Ryan Kemper; author: Ryan Kemper):

[operations/puppet@production] elastic: decom elastic2049

https://gerrit.wikimedia.org/r/817346

Change 817346 merged by Ryan Kemper:

[operations/puppet@production] elastic: decom elastic2049

https://gerrit.wikimedia.org/r/817346

This step failed (shouldn't be an issue I'd think): **Unable to connect to the host, wipe of swraid, partition-table and filesystem signatures will not be performed**: Cumin execution failed (exit_code=2)

Gehel updated the task description. (Show Details)

cookbooks.sre.hosts.decommission executed by ryankemper@cumin1001 for hosts: elastic2049.codfw.wmnet

  • elastic2049.codfw.wmnet (FAIL)
    • Host not found on Icinga, unable to downtime it
    • Found physical host
    • Management interface not found on Icinga, unable to downtime it
    • Unable to connect to the host, wipe of swraid, partition-table and filesystem signatures will not be performed: Cumin execution failed (exit_code=2)
    • Powered off
    • [Netbox] Set status to Decommissioning, deleted all non-mgmt IPs, updated switch interfaces (disabled, removed vlans, etc
    • Configured the linked switch interface(s)
    • Removed from DebMonitor
    • Removed from Puppet master and PuppetDB

ERROR: some step on some host failed, check the bolded items above

Papaul updated the task description. (Show Details)

complete

Gehel removed Papaul as the assignee of this task.Nov 7 2022, 4:11 PM
Gehel claimed this task.
Gehel added a subscriber: Papaul.

Change 855002 had a related patch set uploaded (by Bking; author: Bking):

[operations/puppet@production] elastic: finish decom of elastic2049

https://gerrit.wikimedia.org/r/855002

Change 855002 abandoned by Bking:

[operations/puppet@production] elastic: finish decom of elastic2049

Reason:

used outdated version of site.pp

https://gerrit.wikimedia.org/r/855002

Change 855004 had a related patch set uploaded (by Bking; author: Bking):

[operations/puppet@production] elastic: finish decom of elastic2049

https://gerrit.wikimedia.org/r/855004

Change 855004 merged by Ryan Kemper:

[operations/puppet@production] elastic: finish decom of elastic2049

https://gerrit.wikimedia.org/r/855004