fix caching so that there is the ability to download services without installing them. This is done with a #NOPRIME comment in apts/files/
diff --git a/tools/build_libvirt.sh b/tools/build_libvirt.sh
index 3de8cc5..d192879 100755
--- a/tools/build_libvirt.sh
+++ b/tools/build_libvirt.sh
@@ -145,8 +145,8 @@
# Make sure that base requirements are installed
cp /etc/resolv.conf $COPY_DIR/etc/resolv.conf
chroot $COPY_DIR apt-get update
-chroot $COPY_DIR apt-get install -y --force-yes `cat files/apts/* | cut -d\# -f1 | egrep -v "(rabbitmq|libvirt-bin|mysql-server|memcached)"`
-chroot $COPY_DIR apt-get install -y --download-only rabbitmq-server libvirt-bin mysql-server
+chroot $COPY_DIR apt-get install -y --download-only `cat files/apts/* | grep NOPRIME | cut -d\# -f1`
+chroot $COPY_DIR apt-get install -y --force-yes `cat files/apts/* | grep -v NOPRIME | cut -d\# -f1`
chroot $COPY_DIR pip install `cat files/pips/*`
# Clean out code repos if directed to do so