Test suite fails to attach virtual USB disk with QEMU 2.10 and AppArmor enabled

Call to virDomainAttachDeviceFlags failed: internal error: unable to execute QEMU command 'device_add': Property 'usb-storage.drive' can't find value 'drive-usb-disk0' (Guestfs::Error)

Related issues

Blocks #13240 (closed)

Original created by @intrigeri on 14719 (Redmine)

To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information