Neither doc previously said how much of a claimed transform chain is
actually honored; a reader could assume claiming any transform in a
chain was sufficient on its own. State the suffix rule plainly, with
the format/mkdir/overlay example the code itself now enforces, and
call out that format in particular can only ever be claimed as part
of a suffix that covers what follows it, never alone, since it
resolves mount points internal to the mount manager.
Signed-off-by: Derek McGowan <derek@mcg.dev>
Add a registry entry for the containerd.types.MountCapabilities extension,
and update the mount and bootstrap protocol docs for extensions replacing
the reserved-for-future-use capabilities field, and for the removal of the
runtime-allow-mounts annotation and the "/*" transform convention.
Signed-off-by: Derek McGowan <derek@mcg.dev>
Derek McGowan