From 6885f430b74812cd6e295113df25f52a415fe8c8 Mon Sep 17 00:00:00 2001
From: peterabarr <90917602+peterabarr@users.noreply.github.com>
Date: Mon, 2 Oct 2023 11:00:08 +0100
Subject: [PATCH] Add to templates file

Signed-off-by: peterabarr <90917602+peterabarr@users.noreply.github.com>
---
 alertmanager.kubeVersion                   | 0
 charts/alertmanager/templates/_helpers.tpl | 7 +++++++
 2 files changed, 7 insertions(+)
 create mode 100644 alertmanager.kubeVersion

diff --git a/alertmanager.kubeVersion b/alertmanager.kubeVersion
new file mode 100644
index 000000000000..e69de29bb2d1
diff --git a/charts/alertmanager/templates/_helpers.tpl b/charts/alertmanager/templates/_helpers.tpl
index 827b6ee9f7da..b2c4f5cfc0a9 100644
--- a/charts/alertmanager/templates/_helpers.tpl
+++ b/charts/alertmanager/templates/_helpers.tpl
@@ -24,6 +24,13 @@ If release name contains chart name it will be used as a full name.
 {{- end }}
 {{- end }}
 
+{{/*
+Get KubeVersion removing pre-release information.
+*/}}
+{{- define "alertmanager.kubeVersion" -}}
+  {{- default .Capabilities.KubeVersion.Version (regexFind "v[0-9]+\\.[0-9]+\\.[0-9]+" .Capabilities.KubeVersion.Version) -}}
+{{- end -}}
+
 {{/*
 Create chart name and version as used by the chart label.
 */}}