Switch from wsgi script to wsgi module

Change-Id: If13a79c15a42fa52150fd3fee0207b6828e5cde3

defaults/main.yml

@@ -117,7 +117,7 @@ blazar_services:
     init_config_overrides: "{{ blazar_api_init_config_overrides }}"
     start_order: 1
     wsgi_app: true
-    wsgi_name: blazar-api-wsgi
+    wsgi: "blazar.wsgi.api:application"
     uwsgi_port: "{{ blazar_service_port }}"
     uwsgi_bind_address: "{{ blazar_bind_address }}"
     uwsgi_overrides: "{{ blazar_api_uwsgi_ini_overrides }}"

vars/main.yml

@@ -66,7 +66,6 @@ uwsgi_blazar_services: |-
          and ('wsgi_app' in value and value['wsgi_app']) %}
   {%     set _ = value.update(
             {
-             'wsgi_path':  blazar_bin ~ '/' ~ value.wsgi_name,
              'wsgi_venv': blazar_bin | dirname,
              'uwsgi_uid': blazar_system_user_name,
              'uwsgi_guid': blazar_system_group_name,