prometheus
kube-prometheus-stack helm chart 로 설치시에 grafana alert-manager 까지 함께 설치된다.
helm repo add prometheus-community https://prometheus-community.github.io/helm-charts
helm repo search prometheus-community
helm pull prometheus-community/kube-prometheus-stack --untar
# storageClass 등 설치 필요
helm upgrade --install --create-namespace -n prometheus . 
link

kubernetes
grafana
loki
promtail