Update juju images

Change-Id: I661fa4bb2030fe6a0b4a75ac435a046bc46e2a90
Signed-off-by: calvinosanc1 <guillermo.calvino@canonical.com>
diff --git a/installers/update-juju-lxc-images b/installers/update-juju-lxc-images
index 88be127..18f85c9 100755
--- a/installers/update-juju-lxc-images
+++ b/installers/update-juju-lxc-images
@@ -98,6 +98,7 @@
     alias=juju/$series/amd64
 
     lxc delete $container -f || true
+    lxc image copy ubuntu:$series local: --alias clean-$series
     lxc launch ubuntu:$series $container
     sleep 15  # wait for network
 
@@ -121,6 +122,7 @@
     lxc stop $container
 
     lxc image delete $alias || true
+    lxc image delete clean-$series || true
     lxc publish $container --alias $alias description="$series juju dev image ($(date +%Y%m%d))"
 
     lxc delete $container -f || true