hst: support ephemeral overlay mounts

This is useful for reusing a readonly template without autoroot. Signed-off-by: Ophestra <cat@gensokyo.uk>
2026-06-17 02:16:57 +09:00
parent 28e133c298
commit 92b61889a6
6 changed files with 59 additions and 12 deletions
@@ -37,6 +37,8 @@ type Ops interface {
 	Bind(source, target *check.Absolute, flags int) Ops
 	// Overlay appends an op that mounts the overlay pseudo filesystem.
 	Overlay(target, state, work *check.Absolute, layers ...*check.Absolute) Ops
+	// OverlayEphemeral appends a MountOverlayOp with an ephemeral upperdir and workdir.
+	OverlayEphemeral(target *check.Absolute, layers ...*check.Absolute) Ops
 	// OverlayReadonly appends an op that mounts the overlay pseudo filesystem readonly.
 	OverlayReadonly(target *check.Absolute, layers ...*check.Absolute) Ops