Given that Ceph Quincy (v17) is past end of life,
remove Quincy from the supported Ceph versions,
examples, and documentation.
Supported versions now include only Reef and Squid.
Signed-off-by: Travis Nielsen <tnielsen@redhat.com>
Implement the SSSD sidecar design for NFS.
Because NFS documents are getting long, create an NFS
`Storage-Configuration` section with separated topics to keep the `NFS
Overview` document sane.
Adjust the SSSD design to allow any VolumeSource, not just ConfigMaps.
Signed-off-by: Blaine Gardner <blaine.gardner@redhat.com>