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decommission es2016.codfw.wmnet
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Description

This task will track the decommission-hardware of server es2016.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.

es2016

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.
  • - 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.
  • - remove all remaining puppet references (include role::spare) and all host entries in the puppet repo
  • - remove ALL dns entries except the asset tag mgmt entries.
  • - reassign task from service owner to DC ops team member depending on site of servee.

End service owner steps / Begin DC-Ops team steps:

  • - disable switch port / set to asset tag if host isn't being unracked / remove from switch if being unracked.
  • - 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: switch port configuration removed from switch once system is unracked.
  • - IF DECOM: mgmt dns entries removed.

Event Timeline

Mentioned in SAL (#wikimedia-operations) [2020-09-30T06:58:39Z] <marostegui@cumin1001> dbctl commit (dc=all): 'Depool es2016 T264156', diff saved to https://phabricator.wikimedia.org/P12850 and previous config saved to /var/cache/conftool/dbconfig/20200930-065838-marostegui.json

Change 631132 had a related patch set uploaded (by Marostegui; owner: Marostegui):
[operations/puppet@production] es2016: Disable notifications

https://gerrit.wikimedia.org/r/631132

Change 631132 merged by Marostegui:
[operations/puppet@production] es2016: Disable notifications

https://gerrit.wikimedia.org/r/631132

Mentioned in SAL (#wikimedia-operations) [2020-09-30T07:05:07Z] <marostegui> Stop mysql on es2016 before decommissioning T264156

Change 631141 had a related patch set uploaded (by Marostegui; owner: Marostegui):
[operations/puppet@production] instances.yaml: Remove es2016 from dbctl

https://gerrit.wikimedia.org/r/631141

Change 631141 merged by Marostegui:
[operations/puppet@production] instances.yaml: Remove es2016 from dbctl

https://gerrit.wikimedia.org/r/631141

Mentioned in SAL (#wikimedia-operations) [2020-09-30T08:08:18Z] <marostegui@cumin1001> dbctl commit (dc=all): 'Remove es2016 from dbctl T264156', diff saved to https://phabricator.wikimedia.org/P12853 and previous config saved to /var/cache/conftool/dbconfig/20200930-080817-marostegui.json

Change 631327 had a related patch set uploaded (by Marostegui; owner: Marostegui):
[operations/puppet@production] mariadb: Remove es2016 puppet entries

https://gerrit.wikimedia.org/r/631327

Change 631328 had a related patch set uploaded (by Marostegui; owner: Marostegui):
[operations/dns@master] dns: Remove es2016 dns entries

https://gerrit.wikimedia.org/r/631328

Change 631327 merged by Marostegui:
[operations/puppet@production] mariadb: Remove es2016 puppet entries

https://gerrit.wikimedia.org/r/631327

cookbooks.sre.hosts.decommission executed by marostegui@cumin1001 for hosts: es2016.codfw.wmnet

  • es2016.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
  • COMMON_STEPS (WARN)
    • Not all affected DC(s) have been migrated to automatic DNS, a manual patch to the operations/dns repository is required

Change 631328 merged by Marostegui:
[operations/dns@master] dns: Remove es2016 dns entries

https://gerrit.wikimedia.org/r/631328

papaul@asw-d-codfw# show | compare
[edit interfaces interface-range vlan-private1-d-codfw]
-    member ge-1/0/5;
[edit interfaces interface-range disabled]
     member ge-6/0/19 { ... }
+    member ge-1/0/5;
[edit interfaces]
-   ge-1/0/5 {
-       description es2016;
-       enable;
-   }
Papaul updated the task description. (Show Details)

complete