cd mychart/charts
 
 helm create mysubchart
 
 rm -rf mysubchart/templates/*.*
 
 ~~~~~~~~~~~~
 
 mychart/charts/mysubchart/values.yaml
 
 dbhostname: mysqlnode
 
 ~~~~~~~~~~
 
 mychart/charts/mysubchart/templates/configmap.yaml
 
 apiVersion: v1
 kind: ConfigMap
 metadata:
   name: {{ .Release.Name }}-innerconfig
 data:
   dbhost: {{ .Values.dbhostname }}
   
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~  
 

 helm install --dry-run --debug mysubchart mychart/charts/mysubchart
 
 ~~~~~~~~~~~~~~~~~~~~~
 
 Over riding values from parent
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 mychart/values.yaml
 
 mysubchart:
   dbhostname: prodmyqlnode
 
 
 
 
 
 helm install --dry-run --debug subchartoverride mychart