add a repo and install a helm chart also to updrade a specific version of chart

To add a repo to local helm:

helm repo add bitnami https://charts.bitnami.com/bitnami

helm repo update

helm repo list

To deploy the chart bitnami/kube-state-metrics to name space metrics with the release name also same as chart name kube-state-metrics.

kubectl create ns metrics

helm install kube-state-metrics bitnami/kube-state-metrics -n metrics

helm ls -n metrics

And then to see the pods in it and access a service with port forward on your local machine.

kubectl get all -n metrics

kubectl port-forward svc/kube-state-metrics 8080:8080 -n metrics

To upgrade or downgrade to a specific version of chart.

helm upgrade kube-state-metrics bitnami/kube-state-metrics --version 0.4.0 -n metrics