Resync helpers, fixup template header

hooks/charmhelpers/contrib/openstack/neutron.py

@@ -241,6 +241,10 @@ def neutron_plugins():
         if midonet_origin is not None and midonet_origin[4:5] == '1':
             plugins['midonet']['driver'] = (
                 'midonet.neutron.plugin_v1.MidonetPluginV2')
+            plugins['midonet']['server_packages'].remove(
+                'python-neutron-plugin-midonet')
+            plugins['midonet']['server_packages'].append(
+                'python-networking-midonet')
     return plugins
 
 

hooks/charmhelpers/contrib/python/packages.py

@@ -19,18 +19,33 @@
 
 import os
 import subprocess
+import sys
 
 from charmhelpers.fetch import apt_install, apt_update
 from charmhelpers.core.hookenv import charm_dir, log
 
-try:
-    from pip import main as pip_execute
-except ImportError:
+__author__ = "Jorge Niedbalski <jorge.niedbalski@canonical.com>"
+
+
+def pip_execute(*args, **kwargs):
+    """Overriden pip_execute() to stop sys.path being changed.
+
+    The act of importing main from the pip module seems to cause add wheels
+    from the /usr/share/python-wheels which are installed by various tools.
+    This function ensures that sys.path remains the same after the call is
+    executed.
+    """
+    try:
+        _path = sys.path
+        try:
+            from pip import main as _pip_execute
+        except ImportError:
             apt_update()
             apt_install('python-pip')
-    from pip import main as pip_execute
-
-__author__ = "Jorge Niedbalski <jorge.niedbalski@canonical.com>"
+            from pip import main as _pip_execute
+        _pip_execute(*args, **kwargs)
+    finally:
+        sys.path = _path
 
 
 def parse_options(given, available):

templates/mitaka/nova.conf

@@ -1,4 +1,4 @@
-# kilo
+# mitaka
 ###############################################################################
 # [ WARNING ]
 # Configuration file maintained by Juju. Local changes may be overwritten.