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decommission db1106.eqiad.wmnet
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Description

This task will track the decommission-hardware of server db1106.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.

db1106

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 882578 had a related patch set uploaded (by Marostegui; author: Marostegui):

[operations/puppet@production] db1106: Disable notifications

https://gerrit.wikimedia.org/r/882578

Change 882578 merged by Marostegui:

[operations/puppet@production] db1106: Disable notifications

https://gerrit.wikimedia.org/r/882578

Change 882996 had a related patch set uploaded (by Marostegui; author: Marostegui):

[operations/puppet@production] instances.yaml: Remove db1106 from dbctl

https://gerrit.wikimedia.org/r/882996

Change 882996 merged by Marostegui:

[operations/puppet@production] instances.yaml: Remove db1106 from dbctl

https://gerrit.wikimedia.org/r/882996

Mentioned in SAL (#wikimedia-operations) [2023-01-24T07:43:23Z] <marostegui@cumin1001> dbctl commit (dc=all): 'Remove db1106 from dbctl T327616', diff saved to https://phabricator.wikimedia.org/P43278 and previous config saved to /var/cache/conftool/dbconfig/20230124-074323-marostegui.json

I am going to wait a few weeks before sending this host to decommissioning as I am going to use it to test mariadb 11 T326116

Marostegui changed the task status from Open to Stalled.Mar 27 2023, 6:56 AM
Marostegui changed the task status from Stalled to Open.Feb 1 2024, 3:49 PM

Change 995050 had a related patch set uploaded (by Marostegui; author: Marostegui):

[operations/puppet@production] db1106: Remove from dbctl

https://gerrit.wikimedia.org/r/995050

Change 995050 merged by Marostegui:

[operations/puppet@production] db1106: Remove from dbctl

https://gerrit.wikimedia.org/r/995050

Mentioned in SAL (#wikimedia-operations) [2024-02-01T15:52:04Z] <marostegui@cumin1002> dbctl commit (dc=all): 'Remove db1106 from dbctl T327616', diff saved to https://phabricator.wikimedia.org/P56072 and previous config saved to /var/cache/conftool/dbconfig/20240201-155203-marostegui.json

Change 995139 had a related patch set uploaded (by Marostegui; author: Marostegui):

[operations/puppet@production] mariadb: Remove db1106

https://gerrit.wikimedia.org/r/995139

Change 995139 merged by Marostegui:

[operations/puppet@production] mariadb: Remove db1106

https://gerrit.wikimedia.org/r/995139

cookbooks.sre.hosts.decommission executed by marostegui@cumin1002 for hosts: db1106.eqiad.wmnet

  • db1106.eqiad.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
Marostegui updated the task description. (Show Details)
Marostegui edited projects, added ops-eqiad; removed Patch-For-Review.
Marostegui added a project: DC-Ops.
Marostegui added subscribers: Jclark-ctr, VRiley-WMF.

This is ready for DC-Ops

this device has been removed and decommissioned

VRiley-WMF updated the task description. (Show Details)