[stable/elasticsearch-curator] Added compatibility for K8s 1.16 (#17509)

Signed-off-by: Christian Kotzbauer <christian.kotzbauer@gmail.com>

stable/elasticsearch-curator/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v1
 appVersion: "5.5.4"
 description: A Helm chart for Elasticsearch Curator
 name: elasticsearch-curator
-version: 2.0.1
+version: 2.0.2
 home: https://github.com/elastic/curator
 keywords:
 - curator

stable/elasticsearch-curator/templates/_helpers.tpl

@@ -11,6 +11,17 @@ Return the appropriate apiVersion for cronjob APIs.
 {{- end -}}
 {{- end -}}
 
+{{/*
+Return the appropriate apiVersion for podsecuritypolicy.
+*/}}
+{{- define "podsecuritypolicy.apiVersion" -}}
+{{- if semverCompare "<1.10-0" .Capabilities.KubeVersion.GitVersion -}}
+{{- print "extensions/v1beta1" -}}
+{{- else -}}
+{{- print "policy/v1beta1" -}}
+{{- end -}}
+{{- end -}}
+
 {{/*
 Expand the name of the chart.
 */}}

stable/elasticsearch-curator/templates/psp.yml

@@ -1,5 +1,5 @@
 {{- if .Values.psp.create }}
-apiVersion: extensions/v1beta1
+apiVersion: {{ template "podsecuritypolicy.apiVersion" . }}
 kind: PodSecurityPolicy
 metadata:
   labels: