Helm must be installed to use the charts. Please refer to Helm's documentation to get started.
Once Helm is set up properly, add the repo as follows:
$ helm repo add openebs https://openebs.github.io/charts
You can then run helm search repo openebs
to see the charts.
First, create the namespace: kubectl create namespace <OPENEBS NAMESPACE>
helm install openebs --namespace <YOUR NAMESPACE>
helm install openebs --namespace <YOUR NAMESPACE>