add healthz check

Author: elavol

entrypoint.sh

@@ -17,4 +17,6 @@ done
 
 touch .adminer-init || true
 
+echo 'OK' > _healthz || true
+
 exec "$@"

index.php

@@ -35,12 +35,6 @@ function _callParent($function, $args) {
 		exit;
 	}
 
-	if (basename($_SERVER['DOCUMENT_URI'] ?? $_SERVER['REQUEST_URI']) === 'healthz') {
-		header('Content-Type: text/plain');
-		echo 'OK';
-		exit;
-	}
-
 	function adminer_object() {
 		return \docker\adminer_object();
 	}