Initial commit of Docker and mailcow updates

roles/mailcow_update/handlers/main.yaml

@@ -0,0 +1,8 @@
+---
+- name: Restart main Docker stack
+  become: true
+  community.docker.docker_compose_v2:
+    # This targets the first directory in the list you defined in your host_vars
+    project_src: "{{ docker_compose_dirs[0] }}" 
+    state: restarted
+