From 3389f89c44731fbae6790b087314b7bf8a805200 Mon Sep 17 00:00:00 2001
From: Justin Cormack <justin.cormack@docker.com>
Date: Mon, 20 Nov 2017 16:24:32 +0000
Subject: [PATCH] Create tmp dir in case required

Signed-off-by: Justin Cormack <justin.cormack@docker.com>
---
 src/moby/build.go | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/moby/build.go b/src/moby/build.go
index 415c08c5e..2575428d4 100644
--- a/src/moby/build.go
+++ b/src/moby/build.go
@@ -10,6 +10,7 @@ import (
 	"io/ioutil"
 	"os"
 	"path"
+	"path/filepath"
 	"sort"
 	"strconv"
 	"strings"
@@ -145,6 +146,11 @@ func Build(m Moby, w io.Writer, pull bool, tp string) error {
 		MobyDir = defaultMobyConfigDir()
 	}
 
+	// create tmp dir in case needed
+	if err := os.MkdirAll(filepath.Join(MobyDir, "tmp"), 0755); err != nil {
+		return err
+	}
+
 	iw := tar.NewWriter(w)
 
 	// add additions