chore(rclone_serve): allow adding arguments directly into rclone_serve, update README

roles/rclone_serve/README.md

@@ -25,11 +25,14 @@ rclone_serve_flags:
   append-only:
 ```
 
-For more variables see default/main.yml file.
+When single-dash flags need to be passed to rclone (such as `-v`), use `rclone_serve_args` to list those
+options in an array.
+
+For more variables see [`defaults/main.yml`](defaults/main.yml) file.
 
 ## Dependencies
-- sivel.toiletwater collection for ini templating
-- Docker
+- `sivel.toiletwater` ansible collection for ini templating
+- Docker and python docker bindings (usually `python3-docker` or `pip3 install docker`) on the target host
 
 ## Example Playbook
 ```yaml

roles/rclone_serve/defaults/main.yml

@@ -9,6 +9,7 @@ rclone_serve_base_path: "/opt/rclone-serve/"
 rclone_serve_protocol: ~
 rclone_serve_backend_config: ~
 rclone_serve_flags: ~
+rclone_serve_args: []
 
 rclone_serve_backend_remote: "default"
 rclone_serve_backend_path: ""

roles/rclone_serve/vars/main.yml

@@ -36,3 +36,4 @@ rclone_serve_container_command: >-
   {{ rclone_serve_protocol }}
   {{ rclone_serve_backend_remote }}:{{ rclone_serve_backend_path }}
   {{ rclone_flags | join(' ') }}
+  {{ rclone_serve_args | join(' ') }}