Put discussion of how to access the API ahead of discussion about
how to access other services on the cluster.
More clearly distinguish the different kinds of proxies.
Explain pros and cons of different approaches better.
Remove cluster-admin-oriented documentation from user guide.
More links.
- Configure the apiserver to listen securely on 443 instead of 6443.
- Configure the kubelet to connect to 443 instead of 6443.
- Update documentation to refer to bearer tokens instead of basic auth.