Fix container inspection

bin/volume.php

@@ -3,7 +3,12 @@
 
 function readContainerConfig() {
   try {
-    $id = getenv('COMPOSE_PROJECT_NAME') . '_l3d';
+    $output = [];
+    exec('basename "$(cat /proc/1/cpuset)"', $output);
+    $id = reset($output);
+    if ($id === '/') {
+      $id = getenv('COMPOSE_PROJECT_NAME') . '_l3d';
+    }
     $output = [];
     exec('docker container inspect ' . $id, $output);
     return json_decode(implode('', $output), TRUE)[0];