[prometheus-node-exporter] - add podAnnotations value (#17740)

Signed-off-by: Alex Williams <alex.williams@skyscanner.net>

stable/prometheus-node-exporter/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v1
 appVersion: 0.18.1
 description: A Helm chart for prometheus node-exporter
 name: prometheus-node-exporter
-version: 1.8.0
+version: 1.8.1
 home: https://github.com/prometheus/node_exporter/
 sources:
 - https://github.com/prometheus/node_exporter/

stable/prometheus-node-exporter/README.md

@@ -43,6 +43,7 @@ The following table lists the configurable parameters of the Node Exporter chart
 | `image.pullPolicy`                | Image pull policy                                                                                                             | `IfNotPresent`                          |     |
 | `extraArgs`                       | Additional container arguments                                                                                                | `[]`                                    |     |
 | `extraHostVolumeMounts`           | Additional host volume mounts                                                                                                 | `[]`                                    |     |
+| `podAnnotations`                  | Annotations to be added to node exporter pods                                                                                 | `{}`                                    |     |
 | `podLabels`                       | Additional labels to be added to pods                                                                                         | `{}`                                    |     |
 | `rbac.create`                     | If true, create & use RBAC resources                                                                                          | `true`                                  |     |
 | `rbac.pspEnabled`                 | Specifies whether a PodSecurityPolicy should be created.                                                                      | `true`                                  |     |

stable/prometheus-node-exporter/templates/daemonset.yaml

@@ -16,6 +16,10 @@ spec:
   template:
     metadata:
       labels: {{ include "prometheus-node-exporter.labels" . | indent 8 }}
+      {{- if .Values.podAnnotations }}
+      annotations:
+      {{- toYaml .Values.podAnnotations | nindent 8 }}
+      {{- end }}
     spec:
 {{- if and .Values.rbac.create .Values.serviceAccount.create }}
       serviceAccountName: {{ template "prometheus-node-exporter.serviceAccountName" . }}

stable/prometheus-node-exporter/values.yaml

@@ -73,6 +73,12 @@ affinity: {}
 #               values:
 #                 - target-host-name
 
+# Annotations to be added to node exporter pods
+podAnnotations: {}
+
+# Extra labels to be added to node exporter pods
+podLabels: {}
+
 ## Assign a nodeSelector if operating a hybrid cluster
 ##
 nodeSelector: {}