From 2f171de4daa9de987ee6b5d890eb899b3e8c82d5 Mon Sep 17 00:00:00 2001
From: Marco Kilchhofer <mkilchhofer@users.noreply.github.com>
Date: Mon, 7 Jun 2021 18:49:15 +0200
Subject: [PATCH] feat(argo-workflows): Add option to override kubeVersion

Signed-off-by: Marco Kilchhofer <mkilchhofer@users.noreply.github.com>
---
 charts/argo-workflows/templates/_helpers.tpl | 11 +++++++++--
 charts/argo-workflows/values.yaml            |  4 ++++
 2 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/charts/argo-workflows/templates/_helpers.tpl b/charts/argo-workflows/templates/_helpers.tpl
index a72c148f..18eae994 100644
--- a/charts/argo-workflows/templates/_helpers.tpl
+++ b/charts/argo-workflows/templates/_helpers.tpl
@@ -94,11 +94,18 @@ Create the name of the controller service account to use
 Return the appropriate apiVersion for ingress
 */}}
 {{- define "argo-workflows.ingress.apiVersion" -}}
-{{- if semverCompare "<1.14-0" .Capabilities.KubeVersion.Version -}}
+{{- if semverCompare "<1.14-0" (include "argo-workflows.kubeVersion" $) -}}
 {{- print "extensions/v1beta1" -}}
-{{- else if semverCompare "<1.19-0" .Capabilities.KubeVersion.Version -}}
+{{- else if semverCompare "<1.19-0" (include "argo-workflows.kubeVersion" $) -}}
 {{- print "networking.k8s.io/v1beta1" -}}
 {{- else -}}
 {{- print "networking.k8s.io/v1" -}}
 {{- end -}}
 {{- end -}}
+
+{{/*
+Return the target Kubernetes version
+*/}}
+{{- define "argo-workflows.kubeVersion" -}}
+  {{- default .Capabilities.KubeVersion.Version .Values.kubeVersionOverride }}
+{{- end -}}
diff --git a/charts/argo-workflows/values.yaml b/charts/argo-workflows/values.yaml
index 7de0dfea..c6af6902 100644
--- a/charts/argo-workflows/values.yaml
+++ b/charts/argo-workflows/values.yaml
@@ -20,6 +20,10 @@ nameOverride:
 ##
 fullnameOverride:
 
+## Override the Kubernetes version, which is used to evaluate certain manifests
+##
+kubeVersionOverride: ""
+
 # Restrict Argo to only deploy into a single namespace by apply Roles and RoleBindings instead of the Cluster equivalents,
 # and start argo-cli with the --namespaced flag. Use it in clusters with strict access policy.
 singleNamespace: false