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decommission cp20[16,19,23].codfw.wmnet
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Description

This task will track the decommission-hardware of server cp20[16,19,23].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.

cp2016.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.
  • - 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 wiped (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 configration removed from switch once system is unracked.
  • - IF DECOM: add system to decommission tracking google sheet
  • - IF DECOM: mgmt dns entries removed.

cp2019.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.
  • - 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 wiped (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 configration removed from switch once system is unracked.
  • - IF DECOM: add system to decommission tracking google sheet
  • - IF DECOM: mgmt dns entries removed.

cp2023.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.
  • - 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 wiped (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 configration removed from switch once system is unracked.
  • - IF DECOM: add system to decommission tracking google sheet
  • - IF DECOM: mgmt dns entries removed.

Event Timeline

Change 585254 had a related patch set uploaded (by Vgutierrez; owner: Vgutierrez):
[operations/puppet@production] site,install_server: Decommission cp20[16,19,23,27]

https://gerrit.wikimedia.org/r/585254

Mentioned in SAL (#wikimedia-operations) [2020-04-01T15:27:40Z] <vgutierrez> depool & decommission cp20[16,19,23,27] - T249125

Change 585254 merged by Vgutierrez:
[operations/puppet@production] site,install_server: Decommission cp20[16,19,23,27]

https://gerrit.wikimedia.org/r/585254

cookbooks.sre.hosts.decommission executed by vgutierrez@cumin1001 for hosts: cp[2016,2019,2023,2027].codfw.wmnet

  • cp2016.codfw.wmnet (PASS)
    • Downtimed host on Icinga
    • Found physical host
    • Downtimed management interface on Icinga
    • Wiped bootloaders
    • Powered off
    • Set Netbox status to Decommissioning
    • Removed from DebMonitor
    • Removed from Puppet master and PuppetDB
  • cp2019.codfw.wmnet (PASS)
    • Downtimed host on Icinga
    • Found physical host
    • Downtimed management interface on Icinga
    • Wiped bootloaders
    • Powered off
    • Set Netbox status to Decommissioning
    • Removed from DebMonitor
    • Removed from Puppet master and PuppetDB
  • cp2023.codfw.wmnet (PASS)
    • Downtimed host on Icinga
    • Found physical host
    • Downtimed management interface on Icinga
    • Wiped bootloaders
    • Powered off
    • Set Netbox status to Decommissioning
    • Removed from DebMonitor
    • Removed from Puppet master and PuppetDB
  • cp2027.codfw.wmnet (PASS)
    • Downtimed host on Icinga
    • Found physical host
    • Downtimed management interface on Icinga
    • Wiped bootloaders
    • Powered off
    • Set Netbox status to Decommissioning
    • Removed from DebMonitor
    • Removed from Puppet master and PuppetDB

Change 585259 had a related patch set uploaded (by Vgutierrez; owner: Vgutierrez):
[operations/dns@master] Remove cp20[16,19,23,27] entries

https://gerrit.wikimedia.org/r/585259

Change 585259 merged by Vgutierrez:
[operations/dns@master] Remove cp20[16,19,23,27] entries

https://gerrit.wikimedia.org/r/585259

Vgutierrez updated the task description. (Show Details)
Vgutierrez removed a project: Patch-For-Review.
Vgutierrez moved this task from Triage to Hardware on the Traffic board.
Vgutierrez renamed this task from decommission cp20[16,19,23,27].codfw.wmnet to decommission cp20[16,19,23].codfw.wmnet.Apr 1 2020, 3:51 PM
Vgutierrez updated the task description. (Show Details)
[edit interfaces interface-range disabled]
     member xe-7/0/4 { ... }
+    member xe-7/0/3;
[edit interfaces]
-   xe-7/0/3 {
-       description cp2016;
-       enable;
-   }
papaul@asw-d-codfw# show | compare
[edit interfaces interface-range disabled]
     member xe-2/0/45 { ... }
+    member xe-2/0/0;
[edit interfaces]
-   xe-2/0/0 {
-       description cp2019;
-       enable;
-   }
[edit interfaces interface-range disabled]
     member xe-2/0/0 { ... }
+    member xe-7/0/0;
[edit interfaces]
-   xe-7/0/0 {
-       description cp2023;
-       enable;
-   }
``
RobH removed a subscriber: wiki_willy.

Change 588019 had a related patch set uploaded (by Papaul; owner: Papaul):
[operations/dns@master] DNS Remove mgmt asset tag from cp20[16-20,22-26]

https://gerrit.wikimedia.org/r/588019

Change 588019 merged by Papaul:
[operations/dns@master] DNS Remove mgmt asset tag DNS for cp20[16-20,22-26]

https://gerrit.wikimedia.org/r/588019

Papaul updated the task description. (Show Details)

complete