Upgrade the Helm chart

Use the following instructions to upgrade the chart to a new release. 

1. Use the following command to obtain the release name for the earlier release.

   $ helm ls -n <namespace>

2. Retrieve the values for the earlier release.

   $ helm get values my-release > old_values.yaml

3. Change the values of the old_values.yaml file as required.

4. Use the helm upgrade command to update the chart.

   $ helm upgrade my-release harness/harness-demo -n <namespace> -f old_values.yaml