func pullImage(c *nodecontainer.NodeContainerConfig, client *docker.Client, p DockerProvisioner, pool string) (string, error) {
image := c.Image()
output, err := pullWithRetry(client, p, image, 3)
if err != nil {
return "", err
}
digest, _ := fix.GetImageDigest(output)
err = c.PinImageIfNeeded(image, digest, pool)
if err != nil {
return "", err
}
return image, err
}
