Merge pull request #1609 from paulfantom/fix-1602

jsonnet: filter out kube-proxy alerts when kube-proxy is disabled

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: {

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: |