Merge pull request #8636 from hashicorp/clundquist/fix-lxd-dir-upload

fixes and closes #8547

builder/lxd/communicator.go

@@ -88,10 +88,12 @@ func (c *Communicator) Upload(dst string, r io.Reader, fi *os.FileInfo) error {
 }
 
 func (c *Communicator) UploadDir(dst string, src string, exclude []string) error {
-	fileDestination := filepath.Join(c.ContainerName, dst)
-
-	cp, err := c.CmdWrapper(fmt.Sprintf("lxc file push -pr %s %s", src, fileDestination))
+	fileDestination := fmt.Sprintf("%s/%s", c.ContainerName, dst)
+	pushCommand := fmt.Sprintf("lxc file push --debug -pr %s %s", src, fileDestination)
+	log.Printf(pushCommand)
+	cp, err := c.CmdWrapper(pushCommand)
 	if err != nil {
+		log.Printf("Error running cp command: %s", err)
 		return err
 	}