feat: Make webserver optional (#1012)

Allow USER_PORTS entries in the form PORT or PORT/PROTO (tcp or udp). When the protocol is omitted, TCP is assumed for backward compatibility. This enables forwarding of UDP services when running the container in user‑mode networking.

src/network.sh

@@ -152,7 +152,18 @@ getUserPorts() {
   list="${list%% }"
 
   for port in $list; do
-    args+="hostfwd=tcp::$port-$VM_NET_IP:$port,"
+    proto="tcp"
+    num="$port"
+
+    if [[ "$port" == */udp ]]; then
+      proto="udp"
+      num="${port%/udp}"
+    elif [[ "$port" == */tcp ]]; then
+      proto="tcp"
+      num="${port%/tcp}"
+    fi
+
+    args+="hostfwd=$proto::$num-$VM_NET_IP:$num,"
   done
 
   echo "${args%?}"
@@ -315,7 +326,7 @@ closeBridge() {
 
 closeNetwork() {
 
-  if [[ "$DHCP" == [Yy1]* ]]; then
+  if [[ "${WEB:-}" != [Nn]* && "$DHCP" == [Yy1]* ]]; then
 
     # Shutdown nginx
     nginx -s stop 2> /dev/null
@@ -493,9 +504,13 @@ else
     checkOS
   fi
 
-  # Shutdown nginx
-  nginx -s stop 2> /dev/null
-  fWait "nginx"
+  if [[ "${WEB:-}" != [Nn]* ]]; then
+
+    # Shutdown nginx
+    nginx -s stop 2> /dev/null
+    fWait "nginx"
+
+  fi
 
   if [[ "${NETWORK,,}" != "user"* ]]; then
 

src/reset.sh

@@ -189,20 +189,25 @@ addPackage() {
   return 0
 }
 
-# shellcheck disable=SC2143
-if [ -f /proc/net/if_inet6 ] && [ -n "$(ifconfig -a | grep inet6)" ]; then
+cp -r /var/www/* /run/shm
+html "Starting $APP for Docker..."
 
-  sed -i "s/listen 5000 default_server;/listen [::]:5000 default_server ipv6only=off;/g" /etc/nginx/sites-enabled/web.conf
+if [[ "${WEB:-}" != [Nn]* ]]; then
+ 
+  # shellcheck disable=SC2143
+  if [ -f /proc/net/if_inet6 ] && [ -n "$(ifconfig -a | grep inet6)" ]; then
 
-else
+    sed -i "s/listen 5000 default_server;/listen [::]:5000 default_server ipv6only=off;/g" /etc/nginx/sites-enabled/web.conf
 
-  sed -i "s/listen [::]:5000 default_server ipv6only=off;/listen 5000 default_server;/g" /etc/nginx/sites-enabled/web.conf
+  else
+
+    sed -i "s/listen [::]:5000 default_server ipv6only=off;/listen 5000 default_server;/g" /etc/nginx/sites-enabled/web.conf
+
+  fi
+  
+  # Start webserver
+  nginx -e stderr
 
 fi
 
-# Start webserver
-cp -r /var/www/* /run/shm
-html "Starting $APP for Docker..."
-nginx -e stderr
-
 return 0