--- charts-original/templates/_helpers.tpl
+++ charts/templates/_helpers.tpl
@@ -1,3 +1,32 @@
+# Rancher
+{{- define "system_default_registry" -}}
+{{- if .Values.global.cattle.systemDefaultRegistry -}}
+{{- printf "%s/" .Values.global.cattle.systemDefaultRegistry -}}
+{{- end -}}
+{{- end -}}
+
+# Windows Support
+
+{{/*
+Windows cluster will add default taint for linux nodes,
+add below linux tolerations to workloads could be scheduled to those linux nodes
+*/}}
+
+{{- define "linux-node-tolerations" -}}
+- key: "cattle.io/os"
+  value: "linux"
+  effect: "NoSchedule"
+  operator: "Equal"
+{{- end -}}
+
+{{- define "linux-node-selector" -}}
+{{- if semverCompare "<1.14-0" .Capabilities.KubeVersion.GitVersion -}}
+beta.kubernetes.io/os: linux
+{{- else -}}
+kubernetes.io/os: linux
+{{- end -}}
+{{- end -}}
+
 {{/* vim: set filetype=mustache: */}}
 {{/*
 Expand the name of the chart.