From 2500d5ba249692f467a9fe3e5a2040731d7401a9 Mon Sep 17 00:00:00 2001
From: Charles Korn <charles.korn@grafana.com>
Date: Tue, 28 Oct 2025 10:19:29 +1100
Subject: [PATCH] Fix issue where `qpsPanel` shows an empty series name for
 gRPC requests with an underscore in their status code

---
 grafana-builder/grafana.libsonnet | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/grafana-builder/grafana.libsonnet b/grafana-builder/grafana.libsonnet
index be43616c8..a10047634 100644
--- a/grafana-builder/grafana.libsonnet
+++ b/grafana-builder/grafana.libsonnet
@@ -485,7 +485,7 @@ local utils = import 'mixin-utils/utils.libsonnet';
             sum by (status) (
               label_replace(label_replace(rate(%s[$__rate_interval]),
               "status", "${1}xx", "%s", "([0-9]).."),
-              "status", "${1}", "%s", "([a-zA-Z]+)"))
+              "status", "${1}", "%s", "([a-zA-Z_]+)"))
           ||| % [selector, statusLabelName, statusLabelName],
         format: 'time_series',
         legendFormat: '{{status}}',
@@ -503,7 +503,7 @@ local utils = import 'mixin-utils/utils.libsonnet';
           sum by (status) (
             label_replace(label_replace(%(metricQuery)s,
             "status", "${1}xx", "%(label)s", "([0-9]).."),
-            "status", "${1}", "%(label)s", "([a-zA-Z]+)"))
+            "status", "${1}", "%(label)s", "([a-zA-Z_]+)"))
         |||,
       native: template % { metricQuery: nativeClassicQuery.native, label: statusLabelName },
       classic: template % { metricQuery: nativeClassicQuery.classic, label: statusLabelName },