unmounting wasn't happening, mostly because of a recent bug in
goprocess.SetTeardown. This commit bumps up some messages to
log.Warnings, as users may want to see them, and makes sure to
Unmount when a node shuts down.
License: MIT
Signed-off-by: Juan Batiz-Benet <juan@benet.ai>
This commit adds a Mount abstraction (which is really just
a wrapped context closer). It makes sure to bind the mount
to the fate of the Node (i.e. close it if the node ends).
This fixes#350