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[Bug 1843708] Fix included in openstack/nova queens-eol

 

This issue was fixed in the openstack/nova queens-eol  release.

** Changed in: nova/queens
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1843708

Title:
  Key-pair is not updated during the rebuild

Status in OpenStack Compute (nova):
  Fix Released
Status in OpenStack Compute (nova) queens series:
  Fix Released
Status in OpenStack Compute (nova) rocky series:
  Fix Released
Status in OpenStack Compute (nova) stein series:
  Fix Released
Status in OpenStack Compute (nova) train series:
  Fix Released
Status in OpenStack Compute (nova) ussuri series:
  Fix Released

Bug description:
  Description
  ===========

  When we want to rebuild an instance and change the keypair we can specified it with : 
  openstack --os-compute-api-version 2.54  server rebuild --image "Debian 10" --key-name key1 instance1

  This comes from this implementation : 
  https://review.opendev.org/#/c/379128/
  https://specs.openstack.org/openstack/nova-specs/specs/queens/implemented/rebuild-keypair-reset.html

  But when rebuilding the instance, Cloud-Init will set the key in authorized_keys from 
  http://169.254.169.254/openstack/latest/meta_data.json

  And this meta_data.json uses the keys from instance_extra tables
  But the keypair will be updated in the 'instances' table but not in the 'instance_extra' table.

  So the keypair is not updated inside the VM

  
  May be this is the function for saving the keypair, but the save() do nothing : 
  https://opendev.org/openstack/nova/src/branch/master/nova/objects/instance.py#L714


  Steps to reproduce
  ==================

  - Deploy a DevStack
  - Boot an instance with keypair key1
  - Rebuild it with key2
  - A nova show will show the key_name key2, keypairs object in table instance_extra is not updated and you cannot connect with key2 to the instance

  Expected result
  ===============
  Connecte to the Vm with the new keypair added during the rebuild call

  Actual result
  =============
  The keypair added during the rebuild call is not set in the VM

  Environment
  ===========
  I tested it on a Devstack from master and we have the behaviour.
  NOVA : commit 5fa49cd0b8b6015aa61b4312b2ce1ae780c42c64

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References