hst: support ephemeral overlay mounts

This is useful for reusing a readonly template without autoroot.

Signed-off-by: Ophestra <cat@gensokyo.uk>

1 files changed, 4 insertions, 0 deletions

diff --git a/internal/outcome/spcontainer.go b/internal/outcome/spcontainer.go
index d9398d2c..97d98dd1 100644
--- a/internal/outcome/spcontainer.go
+++ b/internal/outcome/spcontainer.go
@@ -382,6 +382,10 @@ func (p opsAdapter) Overlay(target, state, work *check.Absolute, layers ...*chec
 	return opsAdapter{p.Ops.Overlay(target, state, work, layers...)}
 }
 
+func (p opsAdapter) OverlayEphemeral(target *check.Absolute, layers ...*check.Absolute) hst.Ops {
+	return opsAdapter{p.Ops.OverlayEphemeral(target, layers...)}
+}
+
 func (p opsAdapter) OverlayReadonly(target *check.Absolute, layers ...*check.Absolute) hst.Ops {
 	return opsAdapter{p.Ops.OverlayReadonly(target, layers...)}
 }