@@ -61,12 +61,13 @@ var (

 	// driver of the daemon. This is initialized in docker_utils by sending

 	// a version call to the daemon and examining the response header.

 	daemonStorageDriver string

-)

-const (

 	// WindowsBaseImage is the name of the base image for Windows testing

+	// Environment variable WINDOWS_BASE_IMAGE can override this

 	WindowsBaseImage = "windowsservercore"

+)

+const (

 	// DefaultImage is the name of the base image for the majority of tests that

 	// are run across suites

 	DefaultImage = "busybox"

@@ -128,4 +129,9 @@ func init() {

 	}

 	volumesConfigPath = dockerBasePath + "/volumes"

 	containerStoragePath = dockerBasePath + "/containers"

+

+	if len(os.Getenv("WINDOWS_BASE_IMAGE")) > 0 {

+		WindowsBaseImage = os.Getenv("WINDOWS_BASE_IMAGE")

+		fmt.Println("INFO: Windows Base image is ", WindowsBaseImage)

+	}

 }