dist-upgrade and then install in do_openstack_upgrade

hooks/cinder_utils.py

@@ -14,6 +14,7 @@ from charmhelpers.core.hookenv import (
 from charmhelpers.fetch import (
     apt_upgrade,
     apt_update,
+    apt_install
 )
 
 from charmhelpers.core.host import (
@@ -375,6 +376,7 @@ def do_openstack_upgrade(configs):
     ]
     apt_update()
     apt_upgrade(options=dpkg_opts, fatal=True, dist=True)
+    apt_install(determine_packages(), fatal=True)
 
     # set CONFIGS to load templates from new release and regenerate config
     configs.set_release(openstack_release=new_os_rel)