[incubator/vault] Api version backwards compatibility (#18378)

* adds compatibility for deployment api version

Signed-off-by: Janusz Bialy <janusz.bialy@qlik.com>

* adds backwards compatibility for ingress api version

Signed-off-by: Janusz Bialy <janusz.bialy@qlik.com>

* adds function to determine networkPolicy api version

Signed-off-by: Janusz Bialy <janusz.bialy@qlik.com>

* bump Chart version

Signed-off-by: Janusz Bialy <janusz.bialy@qlik.com>

incubator/vault/Chart.yaml

@@ -1,7 +1,7 @@
 apiVersion: v1
 description: A Helm chart for Vault, a tool for managing secrets
 name: vault
-version: 0.22.2
+version: 0.23.0
 appVersion: 1.2.3
 home: https://www.vaultproject.io/
 icon: https://www.vaultproject.io/assets/images/mega-nav/logo-vault-0f83e3d2.svg

incubator/vault/templates/_helpers.tpl

@@ -41,3 +41,36 @@ Create chart name and version as used by the chart label.
 {{- define "vault.chart" -}}
 {{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" -}}
 {{- end -}}
+
+{{/*
+Return the apiVersion of deployment.
+*/}}
+{{- define "deployment.apiVersion" -}}
+{{- if .Capabilities.APIVersions.Has "apps/v1" -}}
+    {{- print "apps/v1" -}}
+{{- else -}}
+    {{- print "extensions/v1beta1" -}}
+{{- end -}}
+{{- end -}}
+
+{{/*
+Return the apiVersion of ingress.
+*/}}
+{{- define "ingress.apiVersion" -}}
+{{- if .Capabilities.APIVersions.Has "networking.k8s.io/v1beta1" -}}
+    {{- print "networking.k8s.io/v1beta1" -}}
+{{- else -}}
+    {{- print "extensions/v1beta1" -}}
+{{- end -}}
+{{- end -}}
+
+{{/*
+Return the apiVersion of networkPolicy.
+*/}}
+{{- define "networkPolicy.apiVersion" -}}
+{{- if .Capabilities.APIVersions.Has "networking.k8s.io/v1" -}}
+    {{- print "networking.k8s.io/v1" -}}
+{{- else -}}
+    {{- print "extensions/v1beta1" -}}
+{{- end -}}
+{{- end -}}

incubator/vault/templates/deployment.yaml

@@ -1,4 +1,4 @@
-apiVersion: apps/v1
+apiVersion: {{ template "deployment.apiVersion" . }}
 kind: Deployment
 metadata:
   name: {{ template "vault.fullname" . }}

incubator/vault/templates/ingress.yaml

@@ -1,7 +1,7 @@
 {{- if .Values.ingress.enabled -}}
 {{- $serviceName := include "vault.fullname" . -}}
 {{- $servicePort := .Values.service.externalPort -}}
-apiVersion: networking.k8s.io/v1beta1
+apiVersion: {{ template "ingress.apiVersion" . }}
 kind: Ingress
 metadata:
   name: {{ template "vault.fullname" . }}