Kolla gnocchi deploy fix (rocky) - wsgi-gnocchi

--- /opt/kolla-ansible/ansible/roles/gnocchi/templates/wsgi-gnocchi.conf.j2     2019-06-11 01:10:10.146862701 +0000
+++ /usr/local/share/kolla-ansible/ansible/roles/gnocchi/templates/wsgi-gnocchi.conf.j2 2019-07-11 02:01:00.878392943 +0000
@@ -1,4 +1,8 @@
-{% set python_path = '/usr/lib/python2.7/site-packages' if kolla_install_type == 'binary' else '/var/lib/kolla/venv/lib/python2.7/site-packages' %}
+{% if gnocchi_install_type == 'binary' %}
+    {% set python_path = '/usr/lib/python3/dist-packages' if kolla_base_distro == 'ubuntu' else '/usr/lib/python2.7/site-packages' %}
+{% else %}
+    {% set python_path = '/var/lib/kolla/venv/lib/python2.7/site-packages' %}
+{% endif %}
 {% set wsgi_path = '/usr/bin' if kolla_install_type == 'binary' else '/var/lib/kolla/venv/bin' %}
 Listen {{ api_interface_address }}:{{ gnocchi_api_port }}