[Bug 1452095] [NEW] uvtool won't clean up storage if vm does not exist

[Ryan Harper]

Public bug reported:

libvirtd crashed while creating VMs; this left storage volumes
associated with the instance present.  uvt-kvm destroy foo should clean
up all related volumes, but because the VM is not currently defined,
uvtool does not remove the volumes.  However, if one attempts to create
a new machine with the same name, uvtool complains that the volume
already exists.

1. Ubuntu Vivid 15.04
2. $ apt-cache policy uvtool-libvirt
uvtool-libvirt:
  Installed: 0~bzr99-0ubuntu1
  Candidate: 0~bzr99-0ubuntu1
  Version table:
 *** 0~bzr99-0ubuntu1 0
        500 http://ports.ubuntu.com/ubuntu-ports/ vivid/universe ppc64el Packages
        100 /var/lib/dpkg/status
3. uvt-kvm delete foo  should remove the VM definition (if present) and the related storage pool volumes (if present)
4. uvt-kvm delete stops after checking if foo is defined and then exits if it is not.

ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: uvtool 0~bzr99-0ubuntu1
ProcVersionSignature: User Name 3.19.0-15.15-generic 3.19.3
Uname: Linux 3.19.0-15-generic ppc64le
ApportVersion: 2.17.2-0ubuntu1
Architecture: ppc64el
Date: Wed May  6 01:33:25 2015
PackageArchitecture: all
ProcEnviron:
 TERM=screen
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcLoadAvg: 0.14 0.95 1.22 1/1236 153263
ProcLocks:
 1: POSIX  ADVISORY  WRITE 149496 00:12:496503 0 0
 2: FLOCK  ADVISORY  WRITE 53972 00:32:362976 0 EOF
 3: POSIX  ADVISORY  WRITE 2114 00:12:99335 0 EOF
 4: POSIX  ADVISORY  WRITE 2130 00:12:90143 0 EOF
 5: FLOCK  ADVISORY  WRITE 2181 00:12:93227 0 EOF
ProcSwaps:
 Filename				Type		Size	Used	Priority
 /swap.img                               file		8388544	0	-1
ProcVersion: Linux version 3.19.0-15-generic (buildd at fisher02) (gcc version 4.9.2 (User Name 4.9.2-10ubuntu13) ) #15-User Name SMP Thu Apr 16 23:32:13 UTC 2015
SourcePackage: uvtool
UpgradeStatus: No upgrade log present (probably fresh install)
cpu_cores: Number of cores present = 20
cpu_coreson: Number of cores online = 20
cpu_smt: SMT is off

** Affects: uvtool (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug ppc64el uec-images vivid

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Title:
  uvtool won't clean up storage if vm does not exist

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