This complements the previous PRs to implement more volume features:
directory volumes control their permissions, SELinux labels, etc.
Overlay mounts support additional parent relationship.
Signed-off-by: Andrey Smirnov <andrey.smirnov@siderolabs.com>
Mount EPHEMERAL volume via new controller.
Implement the first cut of volume dependencies from services, refactor
the way system disk wipe works.
Update volume manager controller to destroy volume statuses on shutdown,
which allows to signal mount operations to be terminated.
Lots of WIP ideas still, but I want to complete this PR and move on to
the next one:
* refactor user disks mounts to use new API
* refactor STATE mountes to use new API
* implement directory/overlay mounts
Signed-off-by: Andrey Smirnov <andrey.smirnov@siderolabs.com>
The core change is moving the context out of the `ServiceRunner` struct
to be a local variable, and using a channel to notify about shutdown
events.
Add more synchronization between Run and the moment service started to
avoid mis-identifying not running (yet) service as successfully finished.
Signed-off-by: Andrey Smirnov <andrey.smirnov@siderolabs.com>
Co-authored-by: Dmitriy Matrenichev <dmitry.matrenichev@siderolabs.com>
