This proposed update to docs/design/security.md includes proposals
on how to ensure containers have consistent Linux security behavior
across nodes, how containers authenticate and authorize to the master
and other components, and how secret data could be distributed to
pods to allow that authentication.
References concepts from #3910, #2030, and #2297 as well as upstream issues
around the Docker vault and Docker secrets.
Renamed: logging.md -> devel/logging.m
Renamed: access.md -> design/access.md
Renamed: identifiers.md -> design/identifiers.md
Renamed: labels.md -> design/labels.md
Renamed: namespaces.md -> design/namespaces.md
Renamed: security.md -> design/security.md
Renamed: networking.md -> design/networking.md
Added abbreviated user user-focused document in place of most moved docs.
Added docs/README.md explains how docs are organized.
Added short, user-oriented documentation on labels
Added a glossary.
Fixed up some links.
