restructure services based on host machine

nuc/cloudflare_tunnel/.env.example

@@ -0,0 +1,2 @@
+# TOKEN is the token for this cloudflare tunnel
+TOKEN=XXX

nuc/cloudflare_tunnel/docker-compose.yml

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+---
+version: "3.8"
+services:
+  bitwarden:
+    image: cloudflare/cloudflared:latest
+    container_name: cloudflare-tunnel
+    restart: unless-stopped
+    command: tunnel --no-autoupdate run --token ${TOKEN}
+    
+    environment:
+      - TOKEN=${TOKEN}
+ 
+    networks:
+      - web
+
+networks:
+  web:
+    external: true
+
+volumes:
+  vaultwarden_data:
+    external: true
+