From a1c271d7307ad3d921d39abed9d8e78f8fe110e3 Mon Sep 17 00:00:00 2001
From: Thomas Berreis <thomas@berreis.de>
Date: Sun, 6 Aug 2023 16:11:58 +0200
Subject: [PATCH] feat: allow changing the default revisionHistoryLimit

Signed-off-by: Thomas Berreis <thomas@berreis.de>
---
 charts/prometheus-node-exporter/Chart.yaml               | 2 +-
 charts/prometheus-node-exporter/templates/daemonset.yaml | 1 +
 charts/prometheus-node-exporter/values.yaml              | 4 ++++
 3 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/charts/prometheus-node-exporter/Chart.yaml b/charts/prometheus-node-exporter/Chart.yaml
index 016bb5eb5c9..79fcff34217 100644
--- a/charts/prometheus-node-exporter/Chart.yaml
+++ b/charts/prometheus-node-exporter/Chart.yaml
@@ -6,7 +6,7 @@ keywords:
   - prometheus
   - exporter
 type: application
-version: 4.21.0
+version: 4.22.0
 appVersion: 1.6.0
 home: https://github.com/prometheus/node_exporter/
 sources:
diff --git a/charts/prometheus-node-exporter/templates/daemonset.yaml b/charts/prometheus-node-exporter/templates/daemonset.yaml
index c8a71add18b..a5116a89ef5 100644
--- a/charts/prometheus-node-exporter/templates/daemonset.yaml
+++ b/charts/prometheus-node-exporter/templates/daemonset.yaml
@@ -13,6 +13,7 @@ spec:
   selector:
     matchLabels:
       {{- include "prometheus-node-exporter.selectorLabels" . | nindent 6 }}
+  revisionHistoryLimit: {{ .Values.revisionHistoryLimit }}
   {{- with .Values.updateStrategy }}
   updateStrategy:
     {{- toYaml . | nindent 4 }}
diff --git a/charts/prometheus-node-exporter/values.yaml b/charts/prometheus-node-exporter/values.yaml
index 352712149fe..4125fc3673a 100644
--- a/charts/prometheus-node-exporter/values.yaml
+++ b/charts/prometheus-node-exporter/values.yaml
@@ -14,6 +14,10 @@ imagePullSecrets: []
 nameOverride: ""
 fullnameOverride: ""
 
+# Number of old history to retain to allow rollback
+# Default Kubernetes value is set to 10
+revisionHistoryLimit: 10
+
 global:
   # To help compatibility with other charts which use global.imagePullSecrets.
   # Allow either an array of {name: pullSecret} maps (k8s-style), or an array of strings (more common helm-style).