argocd app delete ecsdemo-nodejs
watch argocd app get ecsdemo-nodejs
所有资源删除完成后，会提示：
FATA[0000] rpc error: code = NotFound desc = applications.argoproj.io "ecsdemo-nodejs" not found
从K8s集群中删除 ArgoCD :
kubectl delete -n argocd -f https://raw.githubusercontent.com/argoproj/argo-cd/stable/manifests/install.yaml
删除namespace：
kubectl delete ns argocd
kubectl delete ns ecsdemo-nodejs
同时将你github的代码库ecsdemo-nodejs 删除。