fix: keep public demo online during optional upstream DNS outages

neode-ui/docker/docker-entrypoint.sh

@@ -1,7 +1,17 @@
 #!/bin/sh
+set -eu
 # Copy nginx config template
 cp /etc/nginx/nginx.conf.template /etc/nginx/nginx.conf
 
+# Use the container's own DNS (Docker and Podman use different addresses).
+# Resolve the optional external demo only on request, so its DNS outage cannot
+# prevent the dashboard from starting. Only IP literals enter nginx syntax.
+resolvers=$(awk '$1 == "nameserver" && $2 ~ /^[0-9a-fA-F:.]+$/ {
+  if (index($2, ":")) printf "[%s] ", $2; else printf "%s ", $2
+}' /etc/resolv.conf)
+[ -n "$resolvers" ] || resolvers="1.1.1.1 8.8.8.8"
+sed -i "s/__ARCHY_DNS_RESOLVERS__/$resolvers/g" /etc/nginx/nginx.conf
+
 # Ensure client_max_body_size 0 is present (unlimited uploads)
 # This is a safety net in case the config template was cached without the directive
 if ! grep -q 'client_max_body_size' /etc/nginx/nginx.conf; then

neode-ui/docker/nginx-demo.conf

@@ -195,6 +195,8 @@ http {
     server {
         listen 2101;
         server_name _;
+        resolver __ARCHY_DNS_RESOLVERS__ valid=30s ipv6=off;
+        resolver_timeout 3s;
 
         # Demo sign-in seeder, served same-origin to the proxied SPA.
         location = /__demo/indee-demo-signin.js {
@@ -203,7 +205,8 @@ http {
         }
 
         location / {
-            proxy_pass https://indee.tx1138.com;
+            set $indee_host indee.tx1138.com;
+            proxy_pass https://$indee_host$request_uri;
             proxy_ssl_server_name on;
             proxy_ssl_name indee.tx1138.com;
             proxy_set_header Host indee.tx1138.com;