jsonnet: Add PodDisruptionBudget to KSM metric allow list

Author: philipgough

CHANGELOG.md

@@ -5,6 +5,7 @@
 - [#1299](https://github.com/openshift/cluster-monitoring-operator/pull/1299) Expose expose /api/v1/labels endpoint for Thanos query.
 - [#1402](https://github.com/openshift/cluster-monitoring-operator/pull/1402) Drop pod-centric cAdvisor metrics that are available at slice level.
 - [#1399](https://github.com/openshift/cluster-monitoring-operator/pull/1399) Rename ThanosSidecarUnhealthy to ThanosSidecarNoConnectionToStartedPrometheus and make it resilient to WAL replays.
+- [#1439](https://github.com/openshift/cluster-monitoring-operator/pull/1439) Expose PodDisruptionBudget labels from kube-state-metrics metrics.
 
 ## 4.9
 

assets/kube-state-metrics/deployment.yaml

@@ -34,7 +34,7 @@ spec:
         - --telemetry-host=127.0.0.1
         - --telemetry-port=8082
         - --metric-denylist=kube_secret_labels,kube_*_annotations
-        - --metric-labels-allowlist=pods=[*],nodes=[*],namespaces=[*],persistentvolumes=[*],persistentvolumeclaims=[*]
+        - --metric-labels-allowlist=pods=[*],nodes=[*],namespaces=[*],persistentvolumes=[*],persistentvolumeclaims=[*],poddisruptionbudgets=[*]
         - |
           --metric-denylist=
           kube_.+_created,

jsonnet/components/kube-state-metrics.libsonnet

@@ -134,7 +134,7 @@ function(params)
                     c {
                       args+: [
                         '--metric-denylist=kube_secret_labels,kube_*_annotations',
-                        '--metric-labels-allowlist=pods=[*],nodes=[*],namespaces=[*],persistentvolumes=[*],persistentvolumeclaims=[*]',
+                        '--metric-labels-allowlist=pods=[*],nodes=[*],namespaces=[*],persistentvolumes=[*],persistentvolumeclaims=[*],poddisruptionbudgets=[*]',
                       ],
                       securityContext: {},
                       resources: {