From 59472c6aadf41c1fe1e895c43c5f5a37b9ae761c Mon Sep 17 00:00:00 2001
From: Lars Lehtonen <lars.lehtonen@gmail.com>
Date: Thu, 14 Nov 2019 13:40:40 -0800
Subject: [PATCH] builder/lxc: fix dropped error

---
 builder/lxc/step_export.go | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/builder/lxc/step_export.go b/builder/lxc/step_export.go
index 52fd6e546..890949bde 100644
--- a/builder/lxc/step_export.go
+++ b/builder/lxc/step_export.go
@@ -53,7 +53,12 @@ func (s *stepExport) Run(ctx context.Context, state multistep.StateBag) multiste
 	}
 
 	_, err = io.Copy(configFile, originalConfigFile)
-
+	if err != nil {
+		err := fmt.Errorf("error copying file %s: %v", config.ConfigFile, err)
+		state.Put("error", err)
+		ui.Error(err.Error())
+		return multistep.ActionHalt
+	}
 	commands := make([][]string, 3)
 	commands[0] = []string{
 		"lxc-stop", "--name", name,