https://devopscube.com/install-configure-helm-kubernetes
https://docs.bitnami.com/tutorials/create-your-first-helm-chart
1. install
curl -k https://get.helm.sh/helm-v3.7.1-linux-amd64.tar.gz -o /tmp/helm.tar.gz
tar xvfz /tmp/helm.tar.gz -C /tmp/
cp /tmp/linux-amd64/helm /usr/sbin/
2. add helm repo
helm repo add stable https://charts.helm.sh/stable
helm search repo jenkins
3. install & validate helm chart
helm repo add ingress-nginx https://kubernetes.github.io/ingress-nginx
helm repo update
helm install ingress-controller ingress-nginx/ingress-nginx
helm ls
kubectl get deployments
helm uninstall ingress-controller
4. install app
helm create mychart
helm install --dry-run --debug ./mychart
helm install example ./mychart --set service.type=LoadBalancer
