Add config option to disable Nginx IPv6 lsitener

nginx-ipv6.sh

@@ -0,0 +1,17 @@
+#!/bin/sh
+# @see: https://github.com/nginx/docker-nginx-unprivileged/tree/main/stable/alpine-slim
+
+set -e
+
+entrypoint_log() {
+    if [ -z "${NGINX_ENTRYPOINT_QUIET_LOGS:-}" ]; then
+        echo "$@"
+    fi
+}
+
+if [ -n "$DISABLE_IPV6" ]; then
+  entrypoint_log "Disabling the Nginx IPv6 listener"
+  sed -i '/^[[:space:]]*listen[[:space:]]*\[::\]:[0-9]*/s/^/#/' /etc/nginx/nginx.conf
+fi
+
+exit 0