Track the nginx-menu playbook as it stands

It has been serving three menu Sites from an untracked directory, so today's
state was not reproducible or revertible.

nginx-menu/vars/default.yml

@@ -0,0 +1,17 @@
+---
+title: hngmohali.com
+host: "menu.{{ title }}"
+
+docker_container: "nginx-{{ host }}"
+image_name: nginx:alpine
+
+caddy_container: caddy
+docker_network: "{{ host }}_net"
+
+caddyfile_path: /var/lib/caddy/conf/Caddyfile
+snippet_block: |
+  {{ host }} {
+      reverse_proxy {{ docker_container }}:80
+  }
+
+host_directory: "/var/lib/{{ host }}"