parameterize directories

roles/pizzeria/tasks/main.yml

@@ -1,9 +1,9 @@
 - name: Clone pizzeria repository
   git:
-    repo: "{{ pizzeria.git_origin }}"
-    dest: /srv/pizzeria
+    repo: "{{ git_origin }}"
+    dest: "{{ service_dir }}"
 - name: Start the Docker Compose
   docker_compose:
-    project_src: /srv/pizzeria
+    project_src: "{{ service_dir }}"
     pull: true
     remove_orphans: true