add configmap template

common/templates/_configmap.tpl

+{{- define "common.configmap" -}}
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ .Values.name | default "configmap" | quote }}
+  {{- with .Values.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+  labels:
+    {{- include "common.variables.labels" . | nindent 4 }}
+data:
+  {{- (include "common.variables.configmap.data" .) | nindent 2 }}
+---
+{{- end }}

common/templates/_helpers.tpl

@@ -59,3 +59,14 @@ Secret data
 {{- end }}
 {{- toYaml $data -}}
 {{- end }}
+
+{{/*
+ConfigMap data
+*/}}
+{{- define "common.variables.configmap.data" -}}
+{{- $data := dict -}}
+{{- range $key, $value := .Values.data -}}
+  {{- $data = merge $data (dict $key $value) -}}
+{{- end }}
+{{- toYaml $data -}}
+{{- end }}