See:
$ kubectl apply --recursive --filename ./manifests
$ kubectl run -ti alpine --image giantswarm/tiny-tools sh
curl http://registry.default.svc:5000
$ minikube ssh
curl http://localhost:5000
REGISTRY_POD_NAME=$(kubectl get pods -l app=registry,component=main \
-o template --template '{{(index .items 0).metadata.name}}')
kubectl port-forward $REGISTRY_POD_NAME 5000:5000
docker pull alpine
docker tag alpine localhost:5000/alpine
docker push localhost:5000/alpine
$ minikube ssh
docker pull localhost:5000/alpine