From 86ac6f79b133d4ebdbe2791f7fbb0476963e3dac Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pawe=C5=82=20Krupa=20=28paulfantom=29?= <pawel@krupa.net.pl>
Date: Mon, 31 Jan 2022 23:14:32 +0100
Subject: [PATCH 1/2] jsonnet: filter out kube-proxy alerts when kube-proxy is
 disabled
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Signed-off-by: Paweł Krupa (paulfantom) <pawel@krupa.net.pl>
---
 .../components/k8s-control-plane.libsonnet                | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/jsonnet/kube-prometheus/components/k8s-control-plane.libsonnet b/jsonnet/kube-prometheus/components/k8s-control-plane.libsonnet
index d2aab5a5..b2cf89e2 100644
--- a/jsonnet/kube-prometheus/components/k8s-control-plane.libsonnet
+++ b/jsonnet/kube-prometheus/components/k8s-control-plane.libsonnet
@@ -37,6 +37,14 @@ function(params) {
 
   mixin:: (import 'github.com/kubernetes-monitoring/kubernetes-mixin/mixin.libsonnet') {
     _config+:: k8s._config.mixin._config,
+  } + {
+    // Filter-out alerts related to kube-proxy when `kubeProxy: false`
+    [if !(defaults + params).kubeProxy then 'prometheusAlerts']+:: {
+      groups: std.filter(
+        function(g) !std.member(['kubernetes-system-kube-proxy'], g.name),
+        super.groups
+      ),
+    },
   },
 
   prometheusRule: {

From 35f0bca4dab29d270d8293d90c685bce9a549f24 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pawe=C5=82=20Krupa=20=28paulfantom=29?= <pawel@krupa.net.pl>
Date: Tue, 1 Feb 2022 16:22:57 +0100
Subject: [PATCH 2/2] manifests: regenerate

---
 manifests/kubernetesControlPlane-prometheusRule.yaml | 12 ------------
 1 file changed, 12 deletions(-)

diff --git a/manifests/kubernetesControlPlane-prometheusRule.yaml b/manifests/kubernetesControlPlane-prometheusRule.yaml
index 74266228..d9e5a606 100644
--- a/manifests/kubernetesControlPlane-prometheusRule.yaml
+++ b/manifests/kubernetesControlPlane-prometheusRule.yaml
@@ -752,18 +752,6 @@ spec:
       for: 15m
       labels:
         severity: critical
-  - name: kubernetes-system-kube-proxy
-    rules:
-    - alert: KubeProxyDown
-      annotations:
-        description: KubeProxy has disappeared from Prometheus target discovery.
-        runbook_url: https://runbooks.prometheus-operator.dev/runbooks/kubernetes/kubeproxydown
-        summary: Target disappeared from Prometheus target discovery.
-      expr: |
-        absent(up{job="kube-proxy"} == 1)
-      for: 15m
-      labels:
-        severity: critical
   - name: kube-apiserver-burnrate.rules
     rules:
     - expr: |