Configurable Emby image, enable mappable devices

roles/emby/defaults/main.yml

@@ -26,3 +26,9 @@ emby_memory: 1g
 
 # docker
 emby_container_name: emby
+emby_image: emby/embyserver
+emby_image_tag: beta
+
+# Device mappings for the docker container. E.g. To enable hardware transcoding:
+# emby_devices:
+#  - "/dev/dri:/dev/dri"

roles/emby/tasks/main.yml

@@ -11,7 +11,7 @@
     - name: Emby Docker Container
       community.docker.docker_container:
         name: "{{ emby_container_name }}"
-        image: emby/embyserver
+        image: "{{ emby_image }}:{{ emby_image_tag }}"
         pull: true
         volumes:
           - "{{ emby_config_directory }}:/config:rw"
@@ -20,6 +20,7 @@
         ports:
           - "{{ emby_port_http }}:8096"
           - "{{ emby_port_https }}:8920"
+        devices: "{{ emby_devices | default(omit) }}"
         env:
           TZ: "{{ ansible_nas_timezone }}"
           PUID: "{{ emby_user_id }}"