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decommission dbproxy2001.codfw.wmnet
Closed, ResolvedPublicRequest

Description

This task will track the decommission-hardware of server dbproxy2001.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.

dbproxy2001

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 no owner and ensure the site project (ops-sitename depending on site of server) is assigned.

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

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Event Timeline

Change #1107919 had a related patch set uploaded (by Marostegui; author: Marostegui):

[operations/puppet@production] mariadb: Decommission dbproxy2001

https://gerrit.wikimedia.org/r/1107919

Change #1107920 had a related patch set uploaded (by Marostegui; author: Marostegui):

[operations/software@master] report_users.sh: Remove dbproxy2001

https://gerrit.wikimedia.org/r/1107920

Change #1107920 merged by jenkins-bot:

[operations/software@master] report_users.sh: Remove dbproxy2001

https://gerrit.wikimedia.org/r/1107920

Change #1107919 merged by Marostegui:

[operations/puppet@production] mariadb: Decommission dbproxy2001

https://gerrit.wikimedia.org/r/1107919

cookbooks.sre.hosts.decommission executed by marostegui@cumin1002 for hosts: dbproxy2001.codfw.wmnet

  • dbproxy2001.codfw.wmnet (PASS)
    • Downtimed host on Icinga/Alertmanager
    • Found physical host
    • Downtimed management interface on Alertmanager
    • Wiped all swraid, partition-table and filesystem signatures
    • 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

cookbooks.sre.hosts.decommission executed by marostegui@cumin1002 for hosts: dbproxy2002.codfw.wmnet

  • dbproxy2002.codfw.wmnet (PASS)
    • Downtimed host on Icinga/Alertmanager
    • Found physical host
    • Downtimed management interface on Alertmanager
    • Wiped all swraid, partition-table and filesystem signatures
    • 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
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Jhancock.wm updated the task description. (Show Details)