fix: set apiVersion for PodDisruptionBudget depending on capabilities (…

…#198)

fixes: #196

charts/kminion/Chart.yaml

@@ -15,7 +15,7 @@ type: application
 # This is the chart version. This version number should be incremented each time you make changes
 # to the chart and its templates, including the app version.
 # Versions are expected to follow Semantic Versioning (https://semver.org/)
-version: 0.11.0
+version: 0.11.1
 
 # This is the version number of the application being deployed. This version number should be
 # incremented each time you make changes to the application. Versions are not expected to

charts/kminion/templates/_helpers.tpl

@@ -95,3 +95,14 @@ Return if ingress supports pathType.
 {{- define "kminion.ingress.supportsPathType" -}}
 {{- or (eq (include "kminion.ingress.isStable" .) "true") (and (eq (include "kminion.ingress.apiVersion" .) "networking.k8s.io/v1beta1") (semverCompare ">= 1.18-0" .Capabilities.KubeVersion.Version)) }}
 {{- end }}
+
+{{/*
+Return the appropriate apiVersion for podDisruptionBudget.
+*/}}
+{{- define "kminion.podDisruptionBudget.apiVersion" -}}
+{{- if $.Capabilities.APIVersions.Has "policy/v1/PodDisruptionBudget" }}
+{{- print "policy/v1" }}
+{{- else }}
+{{- print "policy/v1beta1" }}
+{{- end }}
+{{- end }}

charts/kminion/templates/poddisruptionbudget.yaml

@@ -1,5 +1,5 @@
 {{- if .Values.podDisruptionBudget }}
-apiVersion: policy/v1beta1
+apiVersion: {{ include "kminion.podDisruptionBudget.apiVersion" . }}
 kind: PodDisruptionBudget
 metadata:
   name: {{ template "kminion.fullname" . }}
@@ -16,4 +16,4 @@ spec:
   selector:
     matchLabels:
       {{- include "kminion.selectorLabels" . | nindent 6}}
-{{- end }}
+{{- end }}