Fixup handling of deb source options

hooks/glance-relations

@@ -13,7 +13,7 @@ function install_hook {
   juju-log "Installing glance packages"
   apt-get -y install python-software-properties || exit 1
 
-  configure_install_source $(config-get openstack-origin)
+  configure_install_source "$(config-get openstack-origin)"
 
   apt-get update || exit 1
   apt-get -y install $PACKAGES || exit 1

hooks/lib/openstack-common

@@ -78,7 +78,7 @@ function configure_install_source {
         juju-log "$CHARM No repository key specified"
         url="$src"
       fi
-      add-apt-repository -y "$url"
+      echo $url > /etc/apt/sources.list.d/juju_deb.list
     fi
     return 0
   fi