fix: allow disabling IPv6

Dockerfile

@@ -24,6 +24,7 @@ RUN addgroup -S lighttpd -g ${GID} && adduser -D -S -u ${UID} lighttpd lighttpd
 WORKDIR /www
 
 COPY lighttpd.conf /lighttpd.conf
+COPY ipv6.sh /etc/lighttpd/ipv6.sh
 COPY entrypoint.sh /entrypoint.sh
 COPY --from=build-stage --chown=${UID}:${GID} /app/dist /www/
 COPY --from=build-stage --chown=${UID}:${GID} /app/dist/assets /www/default-assets

README.md

@@ -97,6 +97,8 @@ If you would like to host Homer in a subfolder, (ex: *http://my-domain/**homer**
 * **`PORT`** (default: `8080`)
 If you would like to change internal port of Homer from default `8080` to your port choice.
 
+* **`IPV6_DISABLE`** (default: null)
+Set to a non-empty value to disable listening on IPv6.
 
 #### With docker-compose
 

ipv6.sh

@@ -0,0 +1,6 @@
+#!/bin/sh
+
+# Enable IPV6 if needed
+if test -z "$IPV6_DISABLE"; then
+	echo '$SERVER["socket"] == "[::]:" + env.PORT {  }'
+fi

lighttpd.conf

@@ -1,7 +1,7 @@
 include "/etc/lighttpd/mime-types.conf"
+include_shell "/etc/lighttpd/ipv6.sh"
 
 server.port            = env.PORT
-$SERVER["socket"] == "[::]:" + env.PORT {  }
 server.modules         = ( "mod_alias" )
 server.username        = "lighttpd"
 server.groupname       = "lighttpd"