restructure services based on host machine

nuc/audiobookshelf/.env.example

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+# DOMAIN_ROOT is the root domain that this service will register as with Traefik
+DOMAIN_ROOT=domain.tld

nuc/audiobookshelf/docker-compose.yml

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+---
+version: "3.8"
+services:
+  audiobookshelf:
+    image: advplyr/audiobookshelf
+    container_name: audiobookshelf
+    restart: unless-stopped
+
+    environment:
+      - DOMAIN_ROOT=${DOMAIN_ROOT}
+
+    labels:
+      - "traefik.http.services.audiobookshelf.loadbalancer.server.port=80"
+      - "traefik.enable=true"
+      - "traefik.http.routers.audiobookshelf.rule=Host(`audiobookshelf.${DOMAIN_ROOT}`)"
+      - 'traefik.http.routers.audiobookshelf.middlewares=authelia@docker'
+ 
+    volumes:
+     - audiobookshelf_config:/config
+     - audiobookshelf_metadata:/metadata
+     - audiobookshelf_audiobooks:/audiobooks
+     - audiobookshelf_podcasts:/podcasts
+
+    networks:
+      - web
+
+networks:
+  web:
+    external: true
+
+volumes:
+  audiobookshelf_config:
+    external: true
+    
+  audiobookshelf_metadata:
+    external: true
+    
+  audiobookshelf_audiobooks:
+    external: true
+    
+  audiobookshelf_podcasts:
+    external: true
+