images directory has incorrect permissions

[David Lapsley]

uvt-kvm is unable to destroy a vm once it has been created (this is on xenial.

For example:

root@martian3:~# uvt-kvm destroy secondtest
uvt-kvm: error: libvirt: cannot unlink file '/var/lib/uvtool/libvirt/images/secondtest.qcow': Permission denied

Looking at the directory permissions:

root@martian3:~# cd /var/lib/uvtool/libvirt/
root@martian3:/var/lib/uvtool/libvirt# ls -ltr
total 8
drwxr-xr-x 2 root root 4096 Aug 1 13:42 images
drwxrwxr-x 2 root libvirtd 4096 Aug 1 13:42 metadata

Libvirt is not able to make changes to the images directory. Changing the directory permissions to the following:

root@martian3:/var/lib/uvtool/libvirt# ls -l
total 8
drwxrwxr-x 2 root libvirtd 4096 Aug 1 14:46 images
drwxrwxr-x 2 root libvirtd 4096 Aug 1 13:42 metadata

Fixes the problem.