update alumnigraphi system

it now uses celery and redis

uwsgi-python/tasks/apps/alumnigraph.yml

@@ -19,6 +19,23 @@
   notify:
     - "restart uwsgi instance {{app.instance}}"
 
+- name: ensure the celery unit file exists
+  template:
+    src: apps/alumnigraph-celery.service.j2
+    dest: "/etc/systemd/system/{{ app_name }}-celery.service"
+    owner: root
+    group: root
+    mode: '0644'
+  notify:
+    - reload systemd service files
+    - "restart uwsgi instance {{app.instance}}"
+
+- name: ensure the celery service is enabled
+  service:
+    name: "{{app_name}}-celery"
+    enabled: true
+    state: started
+
 - name: ensure the folder from above is not present anymore
   file:
     path: "{{app_path}}/.ansible"