From 0e28e14db812d403637192389e21696ef27d7612 Mon Sep 17 00:00:00 2001
From: Stefan Reimer <stefan@zero-downtime.net>
Date: Thu, 23 May 2024 21:17:35 +0000
Subject: [PATCH] feat: add new tool template function

---
 charts/kubezero-lib/Chart.yaml             |  2 +-
 charts/kubezero-lib/templates/_helpers.tpl | 13 +++++++++++++
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/charts/kubezero-lib/Chart.yaml b/charts/kubezero-lib/Chart.yaml
index dd0afd4d..ba4a50a6 100644
--- a/charts/kubezero-lib/Chart.yaml
+++ b/charts/kubezero-lib/Chart.yaml
@@ -2,7 +2,7 @@ apiVersion: v2
 name: kubezero-lib
 description: KubeZero helm library - common helm functions and blocks
 type: library
-version: 0.1.6
+version: 0.2.0
 home: https://kubezero.com
 icon: https://cdn.zero-downtime.net/assets/kubezero/logo-small-64.png
 keywords:
diff --git a/charts/kubezero-lib/templates/_helpers.tpl b/charts/kubezero-lib/templates/_helpers.tpl
index 7aeae2b8..f9dbe370 100644
--- a/charts/kubezero-lib/templates/_helpers.tpl
+++ b/charts/kubezero-lib/templates/_helpers.tpl
@@ -43,3 +43,16 @@ app.kubernetes.io/managed-by: {{ .Release.Service }}
 app.kubernetes.io/part-of: kubezero
 {{- end -}}
 
+{{- /*
+kubezero-lib.util.merge will merge two YAML templates and output the result.
+This takes an array of three values:
+- the top context
+- the template name of the overrides (destination)
+- the template name of the base (source)
+*/}}
+{{- define "kubezero-lib.util.merge" -}}
+{{- $top := first . -}}
+{{- $overrides := fromYaml (include (index . 1) $top) | default (dict ) -}}
+{{- $tpl := fromYaml (include (index . 2) $top) | default (dict ) -}}
+{{- toYaml (merge $overrides $tpl) -}}
+{{- end -}}