Use root perms for the mounts

ansible/pre-deploy.yml

@@ -38,16 +38,12 @@
       file:
         path: /var/lib/alerta
         state: directory
-        owner: dokku
-        group: dokku
 
     - name: Copy over templated configuration files
       become: true
       template:
         src: "{{ item.src }}"
         dest: "{{ item.dest }}"
-        owner: dokku
-        group: dokku
       with_items:
         - src: alertad.conf
           dest: /var/lib/alerta/alertad.conf