[stable/prometheus-operator] deprecate chart (#23738)

* [stable/prometheus-operator] deprecate chart

See prometheus-community/helm-charts#1

Signed-off-by: Scott Rigby <scott@r6by.com>

* Update stable/prometheus-operator/Chart.yaml

Signed-off-by: Scott Rigby <scott@r6by.com>

Co-authored-by: Reinhard Nägele <unguiculus@gmail.com>

Co-authored-by: Reinhard Nägele <unguiculus@gmail.com>

stable/prometheus-operator/Chart.yaml

@@ -1,18 +1,16 @@
 apiVersion: v1
-description: Provides easy monitoring definitions for Kubernetes services, and deployment and management of Prometheus instances.
+# The prometheus-operator chart is deprecated and no longer maintained. For details deprecation,
+# including how to un-deprecate a chart see the PROCESSES.md file.
+deprecated: true
+description: DEPRECATED Provides easy monitoring definitions for Kubernetes services, and deployment and management of Prometheus instances.
 icon: https://raw.githubusercontent.com/prometheus/prometheus.github.io/master/assets/prometheus_logo-cb55bb5c346.png
 engine: gotpl
-maintainers:
-  - name: vsliouniaev
-  - name: bismarck
-  - name: gianrubio
-    email: gianrubio@gmail.com
 name: prometheus-operator
 sources:
   - https://github.com/coreos/kube-prometheus
   - https://github.com/coreos/prometheus-operator
   - https://coreos.com/operators/prometheus
-version: 9.3.1
+version: 9.3.2
 appVersion: 0.38.1
 tillerVersion: ">=2.12.0"
 home: https://github.com/coreos/prometheus-operator

stable/prometheus-operator/README.md

@@ -1,3 +1,7 @@
+# ⚠️  DEPRECATED
+
+Further development has moved to [prometheus-community/helm-charts](https://github.com/prometheus-community/helm-charts). The chart has been renamed [kube-prometheus-stack](https://github.com/prometheus-community/helm-charts/tree/main/charts/kube-prometheus-stack) to more clearly reflect that it installs the `kube-prometheus` project stack, within which Prometheus Operator is only one component.
+
 # prometheus-operator
 
 Installs [prometheus-operator](https://github.com/coreos/prometheus-operator) to create/configure/manage Prometheus clusters atop Kubernetes. This chart includes multiple components and is suitable for a variety of use-cases.

stable/prometheus-operator/templates/NOTES.txt

@@ -1,3 +1,12 @@
+*******************
+*** DEPRECATED ****
+*******************
+* stable/prometheus-operator chart is deprecated.
+* Further development has moved to https://github.com/prometheus-community/helm-charts
+* The chart has been renamed kube-prometheus-stack to more clearly reflect
+* that it installs the `kube-prometheus` project stack, within which Prometheus
+* Operator is only one component.
+
 The Prometheus Operator has been installed. Check its status by running:
   kubectl --namespace {{ template "prometheus-operator.namespace" . }} get pods -l "release={{ $.Release.Name }}"