update caddy config

Author: lherman-cs

demo/Caddyfile

@@ -0,0 +1,8 @@
+demo.pulsebeam.dev {
+    # Use Let's Encrypt for trusted certificates
+    # Uncomment and add your email for production
+    # tls your-email@example.com
+    
+    # Simple reverse proxy to your application
+    reverse_proxy localhost:3000
+}

demo/compose.yaml

@@ -1,40 +1,31 @@
 version: "3.8"
-
 services:
   pulsebeam:
     image: ghcr.io/pulsebeamdev/pulsebeam:pulsebeam-v0.1.12
     restart: unless-stopped
     network_mode: "host" # Linux only; uses real host IPs for WebRTC
+    healthcheck:
+      test: ["CMD", "curl", "-f", "http://localhost:3000/healthz"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+      start_period: 10s
+    logging:
 
   caddy:
-    image: caddy:2
+    image: docker.io/library/caddy:2
     restart: unless-stopped
     network_mode: "host" # shares host networking
     volumes:
+      - ./Caddyfile:/etc/caddy/Caddyfile:z # Mount the Caddyfile from the host
       - caddy_data:/data
       - caddy_config:/config
-    configs:
-      - source: caddyfile
-        target: /etc/caddy/Caddyfile
     command: ["caddy", "run", "--config", "/etc/caddy/Caddyfile", "--adapter", "caddyfile"]
+    environment:
+      - CADDY_ADMIN=0.0.0.0:2019 # Expose Caddy admin API for monitoring (optional)
 
 volumes:
   caddy_data:
+    name: caddy_data
   caddy_config:
-
-configs:
-  caddyfile:
-    data: |
-      YOUR_DOMAIN_HERE {
-          reverse_proxy pulsebeam:3478
-
-          # rate limiting for HTTP requests (signaling)
-          @http_requests {
-              path /api/v1/*
-          }
-          rate_limit @http_requests {
-              window 1m
-              average 30
-              burst 50
-          }
-      }
+    name: caddy_config