Add support to scaffold chart for ingress prior to k8s 1.14 (#6651)

Signed-off-by: Martin Hickey <martin.hickey@ie.ibm.com>

pkg/chartutil/create.go

@@ -179,7 +179,11 @@ const defaultIgnore = `# Patterns to ignore when building packages.
 const defaultIngress = `{{- if .Values.ingress.enabled -}}
 {{- $fullName := include "<CHARTNAME>.fullname" . -}}
 {{- $svcPort := .Values.service.port -}}
+{{- if semverCompare ">=1.14-0" .Capabilities.KubeVersion.GitVersion -}}
 apiVersion: networking.k8s.io/v1beta1
+{{- else -}}
+apiVersion: extensions/v1beta1
+{{- end }}
 kind: Ingress
 metadata:
   name: {{ $fullName }}