request for change: support docker private repository with self-certificate and password

[Peng Wu]

We are testing a private Docker registry using a self-certificate with password protection. Thus we would like to have the ability to run the standalone docker host with recorded certificate and id/password. Manually it would need to run one-time commands similar to the following on the docker standalone host:

mkdir -p /etc/docker/certs.d/dockerhup.host.com:5000/
echo "certificate strinig" > /etc/docker/certs.d/dockerhup.host.com:5000/ca.crt
docker login --username=id --password=password --<email address hidden> dockerhub.host.com:5000

The same should be available for applications that uses docker standalone host, e.g., Kubernetes Cluster (or is it Kubernetes Cluster?)

[Peng Wu (wu105)]

for the dockerhub default repository, we may also need to provide ids/passwords for the private repositories hosted there.