V1

src/index.php

@@ -0,0 +1,24 @@
+// src/index.php
+<?php
+
+$gw = "Unknown";
+
+// Get the Docker host IP from the routing table
+$table = file("/proc/net/route");
+foreach ($table as $row) {
+    // Split the fields out of the routing table
+    $fields = preg_split("/[\t ]+/", trim($row));
+    
+    // Skip this route if it's not the default gateway
+    if ($fields[1] != "00000000") continue;
+
+    // Convert the hex gateway IP to dotted-notation
+    $gw_hex = $fields[2];
+    $gw_rev = long2ip(hexdec("0x$gw_hex"));
+    $gw = implode(".", array_reverse(explode(".", $gw_rev)));
+    break;
+}
+
+echo "Docker host IP: $gw\n";
+echo "Build no: 20240223-1725\n";
+?>