// buildImage invokes a docker build on a particular directory
func buildImage(client DockerClient, dir string, noCache bool, tag string, tar tar.Tar, pullAuth *docker.AuthConfigurations, forcePull bool) error {
tarFile, err := tar.CreateTarFile("", dir)
if err != nil {
return err
}
tarStream, err := os.Open(tarFile)
if err != nil {
return err
}
defer tarStream.Close()
opts := docker.BuildImageOptions{
Name: tag,
RmTmpContainer: true,
OutputStream: os.Stdout,
InputStream: tarStream,
NoCache: noCache,
Pull: forcePull,
}
if pullAuth != nil {
opts.AuthConfigs = *pullAuth
}
return client.BuildImage(opts)
}
