From b08985ee7239ce7a4a9b23ed35addfbcdd6c64c7 Mon Sep 17 00:00:00 2001
From: Gabriel Melillo <gabriel@melillo.me>
Date: Wed, 18 Nov 2020 12:34:28 +0100
Subject: [PATCH] feat(prometheus-couchdb-exporter): add configurable
 apiVersion (#384)

Signed-off-by: Gabriel Melillo <gabriel@melillo.me>
---
 charts/prometheus-couchdb-exporter/Chart.yaml       |  2 +-
 .../templates/_helpers.tpl                          | 13 ++++++++++++-
 .../prometheus-couchdb-exporter/templates/role.yaml |  2 +-
 .../templates/rolebinding.yaml                      |  2 +-
 4 files changed, 15 insertions(+), 4 deletions(-)

diff --git a/charts/prometheus-couchdb-exporter/Chart.yaml b/charts/prometheus-couchdb-exporter/Chart.yaml
index ae5b7eec..40af12fd 100644
--- a/charts/prometheus-couchdb-exporter/Chart.yaml
+++ b/charts/prometheus-couchdb-exporter/Chart.yaml
@@ -3,7 +3,7 @@ appVersion: "1.0"
 description: A Helm chart to export the metrics from couchdb in Prometheus format.
 name: prometheus-couchdb-exporter
 home: https://github.com/gesellix/couchdb-prometheus-exporter
-version: 0.1.3
+version: 0.2.0
 keywords:
 - couchdb-exporter
 sources:
diff --git a/charts/prometheus-couchdb-exporter/templates/_helpers.tpl b/charts/prometheus-couchdb-exporter/templates/_helpers.tpl
index e37e8ebc..d7ea406c 100644
--- a/charts/prometheus-couchdb-exporter/templates/_helpers.tpl
+++ b/charts/prometheus-couchdb-exporter/templates/_helpers.tpl
@@ -40,4 +40,15 @@ Create the name of the service account to use
 {{- else -}}
     {{ default "default" .Values.serviceAccount.name }}
 {{- end -}}
-{{- end -}}
\ No newline at end of file
+{{- end -}}
+
+{{/*
+Return the appropriate apiVersion for rbac.
+*/}}
+{{- define "rbac.apiVersion" -}}
+{{- if .Capabilities.APIVersions.Has "rbac.authorization.k8s.io/v1" }}
+{{- print "rbac.authorization.k8s.io/v1" -}}
+{{- else -}}
+{{- print "rbac.authorization.k8s.io/v1beta1" -}}
+{{- end -}}
+{{- end -}} 
diff --git a/charts/prometheus-couchdb-exporter/templates/role.yaml b/charts/prometheus-couchdb-exporter/templates/role.yaml
index 4a22e40b..30c66457 100644
--- a/charts/prometheus-couchdb-exporter/templates/role.yaml
+++ b/charts/prometheus-couchdb-exporter/templates/role.yaml
@@ -1,5 +1,5 @@
 {{- if .Values.rbac.create }}
-apiVersion: rbac.authorization.k8s.io/v1beta1
+apiVersion: {{ template "rbac.apiVersion" . }}
 kind: Role
 metadata:
   name: {{ template "prometheus-couchdb-exporter.fullname" . }}
diff --git a/charts/prometheus-couchdb-exporter/templates/rolebinding.yaml b/charts/prometheus-couchdb-exporter/templates/rolebinding.yaml
index bd80e722..46941f7e 100644
--- a/charts/prometheus-couchdb-exporter/templates/rolebinding.yaml
+++ b/charts/prometheus-couchdb-exporter/templates/rolebinding.yaml
@@ -1,5 +1,5 @@
 {{- if .Values.rbac.create -}}
-apiVersion: rbac.authorization.k8s.io/v1beta1
+apiVersion: {{ template "rbac.apiVersion" . }}
 kind: RoleBinding
 metadata:
   name: {{ template "prometheus-couchdb-exporter.fullname" . }}