$ istioctl operator init
$ kubectl apply -f ./istio/istio-operator.yaml
$ kubectl create namespace local
$ kubectl label namespace local istio-injection=enabled
$ helm repo add metrics-server https://kubernetes-sigs.github.io/metrics-server/
$ helm upgrade --install metrics-server metrics-server/metrics-server --namespace kube-system
$ helm install \
cert-manager jetstack/cert-manager \
--namespace cert-manager \
--create-namespace \
--version v1.14.4 \
--set installCRDs=true
$ kubectl apply -f ./self-signed-cert/cluster-issuer.yaml
$ helm install kafka oci://registry-1.docker.io/bitnamicharts/kafka --values ./kafka/values.yaml --create-namespace --namespace kafka