This task will track the decommission-hardware of servers cloudelastic100[1-4].wikimedia.org

Note: Decom cookbooks were ran, but there was one small failure:cloudelastic1001 probably failed to fully wipe its disks, see https://phabricator.wikimedia.org/T357780#9561306 and/or https://phabricator.wikimedia.org/P57418:

wipefs: error: /dev/sdg: probing initialization failed: Read-only file system
wipefs: error: /dev/sdh: probing initialization failed: Read-only file system
wipefs: error: /dev/sdi: probing initialization failed: Read-only file system
/dev/sdj: 2 bytes were erased at offset 0x000001fe (dos): 55 aa
wipefs: error: /dev/sdj1: probing initialization failed: No such device or address
wipefs: error: /dev/sdk: probing initialization failed: Read-only file system
/dev/sdl: 2 bytes were erased at offset 0x000001fe (dos): 55 aa
wipefs: error: /dev/sdl1: probing initialization failed: No such device or address
**Failed to wipe swraid, partition-table and filesystem signatures, manual intervention required to make it unbootable**: Cumin execution failed (exit_code=2)

cloudelastic1001.wikimedia.org

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.

cloudelastic1002.wikimedia.org

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.

cloudelastic1003.wikimedia.org

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.

cloudelastic1004.wikimedia.org

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.