container: call op method right before initial process

This is at a point considered to be already "within" the container. Daemons internal to the container can be started here.

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

container/initproc.go

@@ -28,6 +28,7 @@ func (p *MountProcOp) apply(state *setupState, k syscallDispatcher) error {
 	}
 	return k.mount(SourceProc, target, FstypeProc, MS_NOSUID|MS_NOEXEC|MS_NODEV, zeroString)
 }
+func (p *MountProcOp) late(*setupState, syscallDispatcher) error { return nil }
 
 func (p *MountProcOp) Is(op Op) bool {
 	vp, ok := op.(*MountProcOp)