@@ -278,6 +278,11 @@ func workdir(b *Builder, args []string, attributes map[string]bool, original str

 		return err

 	}

+	// NOTE: You won't find the "mkdir" for the directory in here. Rather we

+	// just set the value in the image's runConfig.WorkingDir property

+	// and container.SetupWorkingDirectory() will create it automatically

+	// for us the next time the image is used to create a container.

+

 	return b.commit("", b.runConfig.Cmd, fmt.Sprintf("WORKDIR %v", b.runConfig.WorkingDir))

 }