Public bug reported:
Description
===========
Unshelving a VM can cause an over consumption of a project's quota. I'm not
sure if this is a bug or if it's actually intended behaviour, but in my opinion
this should not be possible since this will allow users to potentially use a
lot more resources than their intended quota.
Steps to reproduce
==================
* Create a project with a quota of i.e. 4 CPUs and 4GB of RAM
* Create server1 with 2 CPUs and 2GB RAM, and shelve it after it successfully
spawns
* When server1 in shelved, create server2 with 4 CPUs and 4GB of RAM
(effectively using up the entire CPU and RAM quota of the project)
* Unshelve server1
Expected result
===============
I would then expect that unshelving server1 would fail, since the quota was
used up by server2
Actual result
=============
Unshelving server1 is completed, and I have now used 6 of 4 CPUs and 6 of 4GB
RAM on my project's quota. FWIW this also works if at the time of unshelving
the quota is already used up.
Environment
===========
Openstack Yoga
nova-api 3:25.1.1-0ubuntu1~cloud0
nova-scheduler 3:25.1.1-0ubuntu1~cloud0
Running KVM/libvirt on Ubuntu 20.04 and Ceph 17.x
** Affects: nova
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2054797
Title:
Unshelve can cause quota over-consumption
Status in OpenStack Compute (nova):
New
Bug description:
Description
===========
Unshelving a VM can cause an over consumption of a project's quota. I'm not
sure if this is a bug or if it's actually intended behaviour, but in my opinion
this should not be possible since this will allow users to potentially use a
lot more resources than their intended quota.
Steps to reproduce
==================
* Create a project with a quota of i.e. 4 CPUs and 4GB of RAM
* Create server1 with 2 CPUs and 2GB RAM, and shelve it after it successfully
spawns
* When server1 in shelved, create server2 with 4 CPUs and 4GB of RAM
(effectively using up the entire CPU and RAM quota of the project)
* Unshelve server1
Expected result
===============
I would then expect that unshelving server1 would fail, since the quota was
used up by server2
Actual result
=============
Unshelving server1 is completed, and I have now used 6 of 4 CPUs and 6 of 4GB
RAM on my project's quota. FWIW this also works if at the time of unshelving
the quota is already used up.
Environment
===========
Openstack Yoga
nova-api 3:25.1.1-0ubuntu1~cloud0
nova-scheduler 3:25.1.1-0ubuntu1~cloud0
Running KVM/libvirt on Ubuntu 20.04 and Ceph 17.x
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