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decommission db1103.eqiad.wmnet
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Description

This task will track the decommission-hardware of server db1103.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.

db1103.eqiad.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

Marostegui changed the task status from Open to Stalled.Mar 16 2023, 10:11 AM
Marostegui created this task.
Marostegui moved this task from Triage to Blocked on the DBA board.

This host is currently x1 master, and first needs its replacement: T332292

Change 907137 had a related patch set uploaded (by Marostegui; author: Marostegui):

[operations/puppet@production] mariadb: Make db1220 x1 candidate

https://gerrit.wikimedia.org/r/907137

Change 907137 merged by Marostegui:

[operations/puppet@production] mariadb: Make db1220 x1 candidate

https://gerrit.wikimedia.org/r/907137

Change 907431 had a related patch set uploaded (by Marostegui; author: Marostegui):

[operations/puppet@production] db1103: Disable notifications

https://gerrit.wikimedia.org/r/907431

Change 907431 merged by Marostegui:

[operations/puppet@production] db1103: Disable notifications

https://gerrit.wikimedia.org/r/907431

Change 907789 had a related patch set uploaded (by Marostegui; author: Marostegui):

[operations/puppet@production] instances.yaml: Remove db1103 from dbctl

https://gerrit.wikimedia.org/r/907789

Change 907789 merged by Marostegui:

[operations/puppet@production] instances.yaml: Remove db1103 from dbctl

https://gerrit.wikimedia.org/r/907789

Mentioned in SAL (#wikimedia-operations) [2023-04-11T07:16:47Z] <marostegui@cumin1001> dbctl commit (dc=all): 'Remove db1103 from dbctl T332293', diff saved to https://phabricator.wikimedia.org/P46266 and previous config saved to /var/cache/conftool/dbconfig/20230411-071647-marostegui.json

Change 907792 had a related patch set uploaded (by Marostegui; author: Marostegui):

[operations/puppet@production] mariadb: Decommission db1103

https://gerrit.wikimedia.org/r/907792

Change 907792 merged by Marostegui:

[operations/puppet@production] mariadb: Decommission db1103

https://gerrit.wikimedia.org/r/907792

cookbooks.sre.hosts.decommission executed by marostegui@cumin1001 for hosts: db1103.eqiad.wmnet

  • db1103.eqiad.wmnet (WARN)
    • Downtimed host on Icinga/Alertmanager
    • Found physical host
    • Management interface not found on Icinga, unable to downtime it
    • 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, DBA.
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