Export YAML

kubectl get deploy --all-namespaces -o yaml --export
kubectl get deploy,sts,svc,configmap,secret -n default -o yaml --export > default.yaml

generate-yaml.sh

for n in $(kubectl get -o=name pvc,configmap,serviceaccount,secret,ingress,service,deployment,statefulset,hpa,job,cronjob)
do
    mkdir -p $(dirname $n)
    kubectl get -o=yaml $n > $n.yaml
done