backend/proxy/default.conf

+# Default server configuration
+#
+server {
+    listen 8081 default_server;
+    listen [::]:8081 default_server;
+
+    root /var/www/html;
+
+    index index.html;
+
+    server_name _;
+
+    # Flask app
+    location / {
+        proxy_pass http://flask_app:5000/;
+        proxy_redirect     default;
+        proxy_set_header   X-Forwarded-For   $proxy_add_x_forwarded_for;
+    }
+
+    # Kratos Public
+    location /kratos/  {
+        proxy_pass http://kube_port_kratos_public:8080/;
+        proxy_redirect     default;
+        proxy_set_header   X-Forwarded-For   $proxy_add_x_forwarded_for;
+    }
+}