This is a helm repository for cert-manager-webhook-ns1. See available versions here
# add the repository
helm repo add cert-manager-webhook-ns1 https://ns1.github.io/cert-manager-webhook-ns1
# make sure we're up to date
helm repo update
# take a look at any configuration you might want to set
helm show values cert-manager-webhook-ns1/cert-manager-webhook-ns1
# install the chart
helm install --namespace cert-manager cert-manager-webhook-ns1/cert-manager-webhook-ns1