From 849e0bfd9e7131fd99f4733d14bf44887b8767c2 Mon Sep 17 00:00:00 2001
From: Kochetkov S <kochetkov.s@sarex.io>
Date: Thu, 18 Jun 2026 11:18:22 +0300
Subject: [PATCH] Tune brusnika stage CPU throttling alert

---
 .../infrastructure/patches/prometheus-stack.yaml          | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/clusters/brusnika-stage/infrastructure/patches/prometheus-stack.yaml b/clusters/brusnika-stage/infrastructure/patches/prometheus-stack.yaml
index 01fa772..2cf61bf 100644
--- a/clusters/brusnika-stage/infrastructure/patches/prometheus-stack.yaml
+++ b/clusters/brusnika-stage/infrastructure/patches/prometheus-stack.yaml
@@ -51,6 +51,14 @@ spec:
               - op: replace
                 path: /spec/groups/0/rules/4/labels/cluster
                 value: brusnika-stage
+              - op: replace
+                path: /spec/groups/0/rules/4/expr
+                value: >-
+                  (
+                    sum(rate(container_cpu_cfs_throttled_periods_total{container!="",namespace!="kube-system"}[15m])) by (container, pod, namespace, scope)
+                    /
+                    sum(rate(container_cpu_cfs_periods_total{container!="",namespace!="kube-system"}[15m])) by (container, pod, namespace, scope)
+                  ) > 0.80
               - op: replace
                 path: /spec/groups/0/rules/5/labels/cluster
                 value: brusnika-stage