feat: support VPAs

introduce and leverage KSM's CRS featureset and support VPAs using that

Signed-off-by: Pranshu Srivastava <rexagod@gmail.com>

separate commonLabels to function

Signed-off-by: Jan Fajerski <jfajersk@redhat.com>

drop rawType

Signed-off-by: Jan Fajerski <jfajersk@redhat.com>

fewer intermediate variables and less explicit defaulting

E.g. else branches default to null

Signed-off-by: Jan Fajerski <jfajersk@redhat.com>

CHANGELOG.md

@@ -1,5 +1,9 @@
 # Note: This CHANGELOG is only for the monitoring team to track all monitoring related changes. Please see OpenShift release notes for official changes.
 
+## 4.16
+
+- [#2078](https://github.com/openshift/cluster-monitoring-operator/pull/2078) Support exporting VPA metrics from KSM.
+
 ## 4.15
 
 - [#2022](https://github.com/openshift/cluster-monitoring-operator/pull/2022) Add support to switch to metrics server from prometheus-adapter when the `MetricsServer` feature gate is enabled.

Makefile

@@ -18,6 +18,7 @@ GOLANG_FILES:=$(shell find . -name \*.go -print)
 # NOTE: grep -v %.yaml is needed  because "%s-policy.yaml" is used
 # in manifest.go and that isn't a valid asset.
 ASSETS=$(shell grep -oh '[^"]*/.*\.yaml' pkg/manifests/manifests.go \
+          | grep -v '^/etc' \
           | grep -v '%.*yaml' | sed 's/^/assets\//')
 
 BIN_DIR ?= $(shell pwd)/tmp/bin

assets/kube-state-metrics/cluster-role.yaml

@@ -128,3 +128,18 @@ rules:
   verbs:
   - list
   - watch
+- apiGroups:
+  - autoscaling.k8s.io
+  resources:
+  - verticalpodautoscalers
+  verbs:
+  - list
+  - watch
+- apiGroups:
+  - apiextensions.k8s.io
+  resources:
+  - customresourcedefinitions
+  verbs:
+  - get
+  - list
+  - watch