FYI - other testing might miss this as "starting a guest on groovy"
works with the new versions, but it will be without apparmor. Migrating
from focal or a pre-upgrade groovy shows the issues broken by apparmor
not being enabled.
** Changed in: apparmor (Ubuntu)
Status: Incomplete => New
** Changed in: apparmor (Ubuntu)
Importance: Low => High
** Tags added: block-proposed
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https://bugs.launchpad.net/bugs/1895967
Title:
3.0.0~beta1-0ubuntu1 in Groovy breaks Libvirt/Qemu/KVM
Status in apparmor package in Ubuntu:
New
Bug description:
Hi,
I stumbled over this due to automatic tests checking proposed.
I found that Focal no more could migrate to Groovy with:
$ virsh migrate --unsafe --live fguest qemu+ssh://10.162.30.163/system
error: unsupported configuration: Security driver model 'apparmor' is not
available
I looked after it and found that while all former releases detected
apparmor correctly:
$ virsh capabilities | grep -C 3 secmodel
<cache>
<bank id='0' level='3' type='both' size='15' unit='MiB' cpus='0-11'/>
</cache>
<secmodel>
<model>apparmor</model>
<doi>0</doi>
</secmodel>
<secmodel>
<model>dac</model>
<doi>0</doi>
<baselabel type='kvm'>+64055:+108</baselabel>
<baselabel type='qemu'>+64055:+108</baselabel>
</secmodel>
Now on groovy that didn't work anymore:
<secmodel>
<model>none</model>
<doi>0</doi>
</secmodel>
<secmodel>
<model>dac</model>
<doi>0</doi>
<baselabel type='kvm'>+64055:+108</baselabel>
<baselabel type='qemu'>+64055:+108</baselabel>
</secmodel>
Since 3.0 is only in proposed:
# apt-cache policy apparmor
apparmor:
Installed: 2.13.3-7ubuntu6
Candidate: 3.0.0~beta1-0ubuntu1
Version table:
3.0.0~beta1-0ubuntu1 500
500 http://archive.ubuntu.com/ubuntu groovy-proposed/main amd64
Packages
*** 2.13.3-7ubuntu6 500
500 http://archive.ubuntu.com/ubuntu groovy/main amd64 Packages
100 /var/lib/dpkg/status
I installed the former version.
$ apt install apparmor=2.13.3-7ubuntu6
$ rm /var/cache/libvirt/qemu/capabilities/*
$ systemctl restart libvirtd
And it works again.
Interestingly going back to 3.0 then works and keeps working.
Therefore maybe it is a red-herring and I'll consider it incomplete & low
prio for now until I know more (allowing others that might see the same to find
this bug and chime in).
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https://bugs.launchpad.net/ubuntu/+source/apparmor/+bug/1895967/+subscriptions
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