From b5279e2e0454813c7467f0bf26c177072731a960 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Niccol=C3=B2=20Fei?= <niccolo.fei@enterprisedb.com>
Date: Wed, 30 Oct 2024 18:56:22 +0100
Subject: [PATCH] feat: support cnpg operator namespace-restricted installation
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Co-authored-by: Leonardo Cecchi <leonardo.cecchi@enterprisedb.com>
Co-authored-by: Jaime Silvela <jaime.silvela@enterprisedb.com>
Co-authored-by: Jonathan Gonzalez V. <jonathan.gonzalez@enterprisedb.com>

Signed-off-by: Niccolò Fei <niccolo.fei@enterprisedb.com>
---
 .github/actions/deploy-cluster/action.yml     |  27 ++
 .github/actions/deploy-operator/action.yml    |  15 +-
 .../actions/verify-cluster-ready/action.yml   |  12 +-
 .github/workflows/tests-operator.yml          |  46 +++-
 README.md                                     |  24 ++
 charts/cloudnative-pg/templates/NOTES.txt     |   7 +-
 charts/cloudnative-pg/templates/_helpers.tpl  | 222 +++++++++++++++
 charts/cloudnative-pg/templates/config.yaml   |  12 +
 .../cloudnative-pg/templates/deployment.yaml  |   4 +
 .../cloudnative-pg/templates/podmonitor.yaml  |  15 ++
 charts/cloudnative-pg/templates/rbac.yaml     | 252 ++++--------------
 charts/cloudnative-pg/values.yaml             |   4 +
 12 files changed, 419 insertions(+), 221 deletions(-)
 create mode 100644 .github/actions/deploy-cluster/action.yml

diff --git a/.github/actions/deploy-cluster/action.yml b/.github/actions/deploy-cluster/action.yml
new file mode 100644
index 000000000..4feaa026b
--- /dev/null
+++ b/.github/actions/deploy-cluster/action.yml
@@ -0,0 +1,27 @@
+name: Deploy a CNPG Cluster
+description: Deploys a CNPG Cluster
+inputs:
+  namespace:
+    description: 'The name of the namespace where the Cluster will be deployed'
+    required: false
+    default: 'default'
+runs:
+  using: composite
+  steps:
+    - name: Deploy a cluster
+      shell: bash
+      env:
+        NAMESPACE: ${{ inputs.namespace }}
+      run: |
+        cat <<EOF | kubectl apply -f -
+        # Example of PostgreSQL cluster
+        apiVersion: postgresql.cnpg.io/v1
+        kind: Cluster
+        metadata:
+          name: cluster-example
+          namespace: $NAMESPACE
+        spec:
+          instances: 3
+          storage:
+            size: 1Gi
+        EOF
diff --git a/.github/actions/deploy-operator/action.yml b/.github/actions/deploy-operator/action.yml
index a1fea523d..38684f41a 100644
--- a/.github/actions/deploy-operator/action.yml
+++ b/.github/actions/deploy-operator/action.yml
@@ -1,16 +1,29 @@
 name: Deploy the CNPG Operator
 description: Deploys the CNPG Operator to a Kubernetes cluster
+inputs:
+  namespace:
+    description: 'The name of the namespace where the operator will be deployed'
+    required: false
+    default: 'cnpg-system'
+  cluster-wide:
+    description: 'If the operator should be deployed cluster-wide or in single-namespace mode'
+    required: false
+    default: 'true'
 runs:
   using: composite
   steps:
     - name: Deploy the operator
       shell: bash
+      env:
+        NAMESPACE: ${{ inputs.namespace }}
+        CLUSTER_WIDE: ${{ inputs.cluster-wide }}
       run:
         helm dependency update charts/cloudnative-pg
 
         helm upgrade
         --install 
-        --namespace cnpg-system
+        --namespace $NAMESPACE
         --create-namespace
+        --set config.clusterWide=$CLUSTER_WIDE
         --wait
         cnpg charts/cloudnative-pg
diff --git a/.github/actions/verify-cluster-ready/action.yml b/.github/actions/verify-cluster-ready/action.yml
index 7e3a522b8..ef7e021be 100644
--- a/.github/actions/verify-cluster-ready/action.yml
+++ b/.github/actions/verify-cluster-ready/action.yml
@@ -5,6 +5,10 @@ inputs:
     description: The name of the cluster to verify
     required: true
     default: database-cluster
+  namespace:
+    description: 'The name of the namespace where the Cluster is deployed'
+    required: false
+    default: 'default'
   ready-instances:
     description: The amount of ready instances to wait for
     required: true
@@ -15,6 +19,10 @@ runs:
   steps:
     - name: Wait for the cluster to become ready
       shell: bash
+      env:
+        CLUSTER_NAME: ${{ inputs.cluster-name }}
+        NAMESPACE: ${{ inputs.namespace }}
+        EXPECTED_READY_INSTANCES: ${{ inputs.ready-instances }}
       run: |
         ITER=0
         while true; do
@@ -22,8 +30,8 @@ runs:
             echo "Cluster not ready"
             exit 1
           fi
-          READY_INSTANCES=$(kubectl get clusters.postgresql.cnpg.io ${INPUT_CLUSTER_NAME} -o jsonpath='{.status.readyInstances}')
-          if [[ "$READY_INSTANCES" == ${INPUT_READY_INSTANCES} ]]; then
+          READY_INSTANCES=$(kubectl get clusters.postgresql.cnpg.io $CLUSTER_NAME -n $NAMESPACE -o jsonpath='{.status.readyInstances}')
+          if [[ "$READY_INSTANCES" == "$EXPECTED_READY_INSTANCES" ]]; then
             echo "Cluster up and running"
             break
           fi
diff --git a/.github/workflows/tests-operator.yml b/.github/workflows/tests-operator.yml
index 2a4372bf3..221ec2311 100644
--- a/.github/workflows/tests-operator.yml
+++ b/.github/workflows/tests-operator.yml
@@ -7,6 +7,7 @@ on:
 
 jobs:
   deploy_operator:
+    name: Deploy the operator in cluster-wide mode
     runs-on: ubuntu-24.04
     steps:
       - name: Checkout
@@ -21,21 +22,40 @@ jobs:
         uses: ./.github/actions/deploy-operator
 
       - name: Deploy a cluster
-        run: |
-          cat <<EOF | kubectl apply -f -
-          # Example of PostgreSQL cluster
-          apiVersion: postgresql.cnpg.io/v1
-          kind: Cluster
-          metadata:
-            name: cluster-example
-          spec:
-            instances: 3
-            storage:
-             size: 1Gi
-          EOF
+        uses: ./.github/actions/deploy-cluster
 
       - name: Verify that the cluster is ready
         uses: ./.github/actions/verify-cluster-ready
         with:
           cluster-name: cluster-example
-          ready-instances: 3
+          ready-instances: '3'
+
+  deploy_operator_single_namespace:
+    name: Deploy the operator in single-namespace mode
+    runs-on: ubuntu-24.04
+    steps:
+      - name: Checkout
+        uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871 # v4.2.1
+        with:
+          fetch-depth: 0
+
+      - name: Setup kind
+        uses: ./.github/actions/setup-kind
+
+      - name: Deploy the operator
+        uses: ./.github/actions/deploy-operator
+        with:
+          namespace: 'single-install'
+          cluster-wide: 'false'
+
+      - name: Deploy a cluster
+        uses: ./.github/actions/deploy-cluster
+        with:
+          namespace: 'single-install'
+
+      - name: Verify that the cluster is ready
+        uses: ./.github/actions/verify-cluster-ready
+        with:
+          namespace: 'single-install'
+          cluster-name: 'cluster-example'
+          ready-instances: '3'
diff --git a/README.md b/README.md
index dda335965..132478a4b 100644
--- a/README.md
+++ b/README.md
@@ -24,6 +24,30 @@ helm upgrade --install cnpg \
   cnpg/cloudnative-pg
 ```
 
+#### Single namespace installation
+
+It is possible to limit the operator's capabilities to solely the namespace in
+which it has been installed. With this restriction, the cluster-level
+permissions required by the operator will be substantially reduced, and
+the security profile of the installation will be enhanced.
+
+You can install the operator in single-namespace mode by setting the
+`config.clusterWide` flag to false, as in the following example:
+
+```console
+helm upgrade --install cnpg \
+  --namespace cnpg-system \
+  --create-namespace \
+  --set config.clusterWide=false \
+  cnpg/cloudnative-pg
+```
+
+**IMPORTANT**: the single-namespace installation mode can't coexist
+with the cluster-wide operator. Otherwise there would be collisions when
+managing the resources in the namespace watched by the single-namespace
+operator.
+It is up to the user to ensure there is no collision between operators.
+
 Refer to the [Operator Chart documentation](charts/cloudnative-pg/README.md) for advanced configuration and monitoring.
 
 ## Cluster chart
diff --git a/charts/cloudnative-pg/templates/NOTES.txt b/charts/cloudnative-pg/templates/NOTES.txt
index 0f79fe0dc..d0b65b9b4 100644
--- a/charts/cloudnative-pg/templates/NOTES.txt
+++ b/charts/cloudnative-pg/templates/NOTES.txt
@@ -1,6 +1,6 @@
 
 CloudNativePG operator should be installed in namespace "{{ .Release.Namespace }}".
-You can now create a PostgreSQL cluster with 3 nodes in the current namespace as follows:
+You can now create a PostgreSQL cluster with 3 nodes as follows:
 
 cat <<EOF | kubectl apply -f -
 # Example of PostgreSQL cluster
@@ -8,11 +8,14 @@ apiVersion: postgresql.cnpg.io/v1
 kind: Cluster
 metadata:
   name: cluster-example
+  {{if not .Values.config.clusterWide  -}}
+  namespace: {{ .Release.Namespace }}
+  {{- end }}
 spec:
   instances: 3
   storage:
     size: 1Gi
 EOF
 
-kubectl get cluster
+kubectl get -A cluster
 
diff --git a/charts/cloudnative-pg/templates/_helpers.tpl b/charts/cloudnative-pg/templates/_helpers.tpl
index be8045584..8e4125ce2 100644
--- a/charts/cloudnative-pg/templates/_helpers.tpl
+++ b/charts/cloudnative-pg/templates/_helpers.tpl
@@ -60,3 +60,225 @@ Create the name of the service account to use
 {{- default "default" .Values.serviceAccount.name }}
 {{- end }}
 {{- end }}
+
+{{/*
+Define the common set of rules that can be applied either with
+namespace scope or clusterwide
+*/}}
+{{- define "cloudnative-pg.commonRules" }}
+- apiGroups:
+  - ""
+  resources:
+  - configmaps
+  - secrets
+  - services
+  verbs:
+  - create
+  - delete
+  - get
+  - list
+  - patch
+  - update
+  - watch
+- apiGroups:
+  - ""
+  resources:
+  - configmaps/status
+  - secrets/status
+  verbs:
+  - get
+  - patch
+  - update
+- apiGroups:
+  - ""
+  resources:
+  - events
+  verbs:
+  - create
+  - patch
+- apiGroups:
+  - ""
+  resources:
+  - persistentvolumeclaims
+  - pods
+  - pods/exec
+  verbs:
+  - create
+  - delete
+  - get
+  - list
+  - patch
+  - watch
+- apiGroups:
+  - ""
+  resources:
+  - pods/status
+  verbs:
+  - get
+- apiGroups:
+  - ""
+  resources:
+  - serviceaccounts
+  verbs:
+  - create
+  - get
+  - list
+  - patch
+  - update
+  - watch
+- apiGroups:
+  - apps
+  resources:
+  - deployments
+  verbs:
+  - create
+  - delete
+  - get
+  - list
+  - patch
+  - update
+  - watch
+- apiGroups:
+  - batch
+  resources:
+  - jobs
+  verbs:
+  - create
+  - delete
+  - get
+  - list
+  - patch
+  - watch
+- apiGroups:
+  - coordination.k8s.io
+  resources:
+  - leases
+  verbs:
+  - create
+  - get
+  - update
+- apiGroups:
+  - monitoring.coreos.com
+  resources:
+  - podmonitors
+  verbs:
+  - create
+  - delete
+  - get
+  - list
+  - patch
+  - watch
+- apiGroups:
+  - policy
+  resources:
+  - poddisruptionbudgets
+  verbs:
+  - create
+  - delete
+  - get
+  - list
+  - patch
+  - update
+  - watch
+- apiGroups:
+  - postgresql.cnpg.io
+  resources:
+  - backups
+  - clusters
+  - poolers
+  - scheduledbackups
+  verbs:
+  - create
+  - delete
+  - get
+  - list
+  - patch
+  - update
+  - watch
+- apiGroups:
+  - postgresql.cnpg.io
+  resources:
+  - backups/status
+  - scheduledbackups/status
+  verbs:
+  - get
+  - patch
+  - update
+- apiGroups:
+  - postgresql.cnpg.io
+  resources:
+  - imagecatalogs
+  verbs:
+  - get
+  - list
+  - watch
+- apiGroups:
+  - postgresql.cnpg.io
+  resources:
+  - clusters/finalizers
+  - poolers/finalizers
+  verbs:
+  - update
+- apiGroups:
+  - postgresql.cnpg.io
+  resources:
+  - clusters/status
+  - poolers/status
+  verbs:
+  - get
+  - patch
+  - update
+  - watch
+- apiGroups:
+  - rbac.authorization.k8s.io
+  resources:
+  - rolebindings
+  - roles
+  verbs:
+  - create
+  - get
+  - list
+  - patch
+  - update
+  - watch
+- apiGroups:
+  - snapshot.storage.k8s.io
+  resources:
+  - volumesnapshots
+  verbs:
+  - create
+  - get
+  - list
+  - patch
+  - watch
+{{- end }}
+
+{{/*
+Define the set of rules that must be applied clusterwide
+*/}}
+{{- define "cloudnative-pg.clusterwideRules" }}
+- apiGroups:
+  - ""
+  resources:
+  - nodes
+  verbs:
+  - get
+  - list
+  - watch
+- apiGroups:
+  - admissionregistration.k8s.io
+  resources:
+  - mutatingwebhookconfigurations
+  - validatingwebhookconfigurations
+  verbs:
+  - get
+  - patch
+- apiGroups:
+  - postgresql.cnpg.io
+  resources:
+  - clusterimagecatalogs
+  verbs:
+  - get
+  - list
+  - watch
+{{- end }}
diff --git a/charts/cloudnative-pg/templates/config.yaml b/charts/cloudnative-pg/templates/config.yaml
index 4dc065fca..803e390bb 100644
--- a/charts/cloudnative-pg/templates/config.yaml
+++ b/charts/cloudnative-pg/templates/config.yaml
@@ -26,7 +26,13 @@ metadata:
     {{- toYaml . | nindent 4 }}
   {{- end }}
 data:
+  {{- if .Values.config.clusterWide -}}
   {{- toYaml .Values.config.data | nindent 2 }}
+  {{- else -}}
+  {{- $watchNamespaceMap := dict "WATCH_NAMESPACE" .Release.Namespace -}}
+  {{- $fullConfiguration := merge .Values.config.data $watchNamespaceMap -}}
+  {{- toYaml $fullConfiguration | nindent 2 }}
+  {{- end -}}
 {{- else }}
 apiVersion: v1
 kind: Secret
@@ -40,6 +46,12 @@ metadata:
     {{- toYaml . | nindent 4 }}
   {{- end }}
 stringData:
+  {{- if .Values.config.clusterWide -}}
   {{- toYaml .Values.config.data | nindent 2 }}
+  {{- else -}}
+  {{- $watchNamespaceMap := dict "WATCH_NAMESPACE" .Release.Namespace -}}
+  {{- $fullConfiguration := merge .Values.config.data $watchNamespaceMap -}}
+  {{- toYaml $fullConfiguration | nindent 2 }}
+  {{- end -}}
 {{- end }}
 {{- end }}
diff --git a/charts/cloudnative-pg/templates/deployment.yaml b/charts/cloudnative-pg/templates/deployment.yaml
index 569752007..a83b344a6 100644
--- a/charts/cloudnative-pg/templates/deployment.yaml
+++ b/charts/cloudnative-pg/templates/deployment.yaml
@@ -78,6 +78,10 @@ spec:
               fieldPath: metadata.namespace
         - name: MONITORING_QUERIES_CONFIGMAP
           value: "{{ .Values.monitoringQueriesConfigMap.name }}"
+        {{ if not .Values.config.clusterWide -}}
+        - name: WATCH_NAMESPACE
+          value: "{{ .Release.Namespace }}"
+        {{- end }}
         {{- if .Values.additionalEnv }}
         {{- tpl (.Values.additionalEnv | toYaml) . | nindent 8 }}
         {{- end }}
diff --git a/charts/cloudnative-pg/templates/podmonitor.yaml b/charts/cloudnative-pg/templates/podmonitor.yaml
index cc7bd7622..deae55874 100644
--- a/charts/cloudnative-pg/templates/podmonitor.yaml
+++ b/charts/cloudnative-pg/templates/podmonitor.yaml
@@ -1,3 +1,18 @@
+#
+# Copyright The CloudNativePG Contributors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
 {{- if .Values.monitoring.podMonitorEnabled }}
 apiVersion: monitoring.coreos.com/v1
 kind: PodMonitor
diff --git a/charts/cloudnative-pg/templates/rbac.yaml b/charts/cloudnative-pg/templates/rbac.yaml
index 4452005f1..e3d14cdec 100644
--- a/charts/cloudnative-pg/templates/rbac.yaml
+++ b/charts/cloudnative-pg/templates/rbac.yaml
@@ -40,208 +40,14 @@ metadata:
     {{- toYaml . | nindent 4 }}
   {{- end }}
 rules:
-- apiGroups:
-  - ""
-  resources:
-  - configmaps
-  - secrets
-  - services
-  verbs:
-  - create
-  - delete
-  - get
-  - list
-  - patch
-  - update
-  - watch
-- apiGroups:
-  - ""
-  resources:
-  - configmaps/status
-  - secrets/status
-  verbs:
-  - get
-  - patch
-  - update
-- apiGroups:
-  - ""
-  resources:
-  - events
-  verbs:
-  - create
-  - patch
-- apiGroups:
-  - ""
-  resources:
-  - nodes
-  verbs:
-  - get
-  - list
-  - watch
-- apiGroups:
-  - ""
-  resources:
-  - persistentvolumeclaims
-  - pods
-  - pods/exec
-  verbs:
-  - create
-  - delete
-  - get
-  - list
-  - patch
-  - watch
-- apiGroups:
-  - ""
-  resources:
-  - pods/status
-  verbs:
-  - get
-- apiGroups:
-  - ""
-  resources:
-  - serviceaccounts
-  verbs:
-  - create
-  - get
-  - list
-  - patch
-  - update
-  - watch
-- apiGroups:
-  - admissionregistration.k8s.io
-  resources:
-  - mutatingwebhookconfigurations
-  - validatingwebhookconfigurations
-  verbs:
-  - get
-  - patch
-- apiGroups:
-  - apps
-  resources:
-  - deployments
-  verbs:
-  - create
-  - delete
-  - get
-  - list
-  - patch
-  - update
-  - watch
-- apiGroups:
-  - batch
-  resources:
-  - jobs
-  verbs:
-  - create
-  - delete
-  - get
-  - list
-  - patch
-  - watch
-- apiGroups:
-  - coordination.k8s.io
-  resources:
-  - leases
-  verbs:
-  - create
-  - get
-  - update
-- apiGroups:
-  - monitoring.coreos.com
-  resources:
-  - podmonitors
-  verbs:
-  - create
-  - delete
-  - get
-  - list
-  - patch
-  - watch
-- apiGroups:
-  - policy
-  resources:
-  - poddisruptionbudgets
-  verbs:
-  - create
-  - delete
-  - get
-  - list
-  - patch
-  - update
-  - watch
-- apiGroups:
-  - postgresql.cnpg.io
-  resources:
-  - backups
-  - clusters
-  - poolers
-  - scheduledbackups
-  verbs:
-  - create
-  - delete
-  - get
-  - list
-  - patch
-  - update
-  - watch
-- apiGroups:
-  - postgresql.cnpg.io
-  resources:
-  - backups/status
-  - scheduledbackups/status
-  verbs:
-  - get
-  - patch
-  - update
-- apiGroups:
-  - postgresql.cnpg.io
-  resources:
-  - clusterimagecatalogs
-  - imagecatalogs
-  verbs:
-  - get
-  - list
-  - watch
-- apiGroups:
-  - postgresql.cnpg.io
-  resources:
-  - clusters/finalizers
-  - poolers/finalizers
-  verbs:
-  - update
-- apiGroups:
-  - postgresql.cnpg.io
-  resources:
-  - clusters/status
-  - poolers/status
-  verbs:
-  - get
-  - patch
-  - update
-  - watch
-- apiGroups:
-  - rbac.authorization.k8s.io
-  resources:
-  - rolebindings
-  - roles
-  verbs:
-  - create
-  - get
-  - list
-  - patch
-  - update
-  - watch
-- apiGroups:
-  - snapshot.storage.k8s.io
-  resources:
-  - volumesnapshots
-  verbs:
-  - create
-  - get
-  - list
-  - patch
-  - watch
+{{- include "cloudnative-pg.clusterwideRules" . }}
+{{/*
+If we're doing a clusterWide installation (default)
+we add ALL the necessary rules for the operator to the ClusterRole
+*/}}
+{{- if .Values.config.clusterWide }}
+{{- include "cloudnative-pg.commonRules" . }}
+{{- end }}
 ---
 apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRoleBinding
@@ -249,7 +55,7 @@ metadata:
   name: {{ include "cloudnative-pg.fullname" . }}
   labels:
     {{- include "cloudnative-pg.labels" . | nindent 4 }}
-  {{- with .Values.commonAnnotations.annotations }}
+  {{- with .Values.commonAnnotations }}
   annotations:
     {{- toYaml . | nindent 4 }}
   {{- end }}
@@ -261,6 +67,46 @@ subjects:
 - kind: ServiceAccount
   name: {{ include "cloudnative-pg.serviceAccountName" . }}
   namespace: {{ .Release.Namespace }}
+{{/*
+If we're doing a single-namespace installation
+we create a Role with the common rules for the operator,
+and a RoleBinding. We already created the ClusterRole above with the
+required cluster-wide rules
+*/}}
+{{- if eq .Values.config.clusterWide false }}
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: Role
+metadata:
+  name: {{ include "cloudnative-pg.fullname" . }}
+  labels:
+    {{- include "cloudnative-pg.labels" . | nindent 4 }}
+  {{- with .Values.commonAnnotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+rules:
+{{- include "cloudnative-pg.commonRules" . }}
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  name: {{ include "cloudnative-pg.fullname" . }}
+  labels:
+    {{- include "cloudnative-pg.labels" . | nindent 4 }}
+  {{- with .Values.commonAnnotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: Role
+  name: {{ include "cloudnative-pg.fullname" . }}
+subjects:
+- kind: ServiceAccount
+  name: {{ include "cloudnative-pg.serviceAccountName" . }}
+  namespace: {{ .Release.Namespace }}
+{{- end }}
 ---
 apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRole
diff --git a/charts/cloudnative-pg/values.yaml b/charts/cloudnative-pg/values.yaml
index a95165ffd..4a93818d0 100644
--- a/charts/cloudnative-pg/values.yaml
+++ b/charts/cloudnative-pg/values.yaml
@@ -58,6 +58,10 @@ config:
   name: cnpg-controller-manager-config
   # -- Specifies whether it should be stored in a secret, instead of a configmap.
   secret: false
+  # -- This option determines if the operator is responsible for observing
+  # events across the entire Kubernetes cluster or if its focus should be
+  # narrowed down to the specific namespace within which it has been deployed.
+  clusterWide: true
   # -- The content of the configmap/secret, see
   # https://cloudnative-pg.io/documentation/current/operator_conf/#available-options
   # for all the available options.