--- /dev/null
+################################################################################
+# Copyright (c) 2019 AT&T Intellectual Property. #
+# #
+# Licensed under the Apache License, Version 2.0 (the "License"); #
+# you may not use this file except in compliance with the License. #
+# You may obtain a copy of the License at #
+# #
+# http://www.apache.org/licenses/LICENSE-2.0 #
+# #
+# Unless required by applicable law or agreed to in writing, software #
+# distributed under the License is distributed on an "AS IS" BASIS, #
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. #
+# See the License for the specific language governing permissions and #
+# limitations under the License. #
+################################################################################
+
+{{/* vim: set filetype=mustache: */}}
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "name" -}}
+{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{/*
+Create a default fully qualified app name.
+We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
+*/}}
+{{- define "fullname" -}}
+{{- $name := default .Chart.Name .Values.nameOverride -}}
+{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{- define "uname" -}}
+{{ .Values.clusterName }}-{{ .Values.nodeGroup }}
+{{- end -}}
+
+{{- define "masterService" -}}
+{{- if empty .Values.masterService -}}
+{{ .Values.clusterName }}-master
+{{- else -}}
+{{ .Values.masterService }}
+{{- end -}}
+{{- end -}}
+
+{{- define "endpoints" -}}
+{{- $replicas := .replicas | int }}
+{{- $uname := printf "%s-%s" .clusterName .nodeGroup }}
+ {{- range $i, $e := untilStep 0 $replicas 1 -}}
+{{ $uname }}-{{ $i }},
+ {{- end -}}
+{{- end -}}
+
+{{- define "esMajorVersion" -}}
+{{- if .Values.esMajorVersion -}}
+{{ .Values.esMajorVersion }}
+{{- else -}}
+{{- $version := int (index (.Values.imageTag | splitList ".") 0) -}}
+ {{- if and (contains "docker.elastic.co/elasticsearch/elasticsearch" .Values.image) (not (eq $version 0)) -}}
+{{ $version }}
+ {{- else -}}
+7
+ {{- end -}}
+{{- end -}}
+{{- end -}}