Function extractImages

sdk/python/runtime/image.go:109–136

extractImages reads from the bundled Dockerfile to extract the default docker image references.

()

// extractImages reads from the bundled Dockerfile to extract the default docker
// image references.
func extractImages() (map[string]Image, error) {
	images := make(map[string]Image)
	for _, dockerfile := range []string{baseDockerfile, uvDockerfile} {
		lines := strings.Split(dockerfile, "\n")

		for _, line := range lines {
			if matches := fromLineRegex.FindStringSubmatch(strings.TrimSpace(line)); matches != nil {
				ref := matches[1]
				name := matches[2]

				image, err := NewImage(ref)
				if err != nil {
					return nil, fmt.Errorf("parsing %q image ref: %w", name, err)
				}

				images[name] = image
			}
		}
	}

	for _, name := range baseImageNames {
		if _, found := images[name]; !found {
			return nil, fmt.Errorf("unable to find %q image ref", name)
		}
	}

	return images, nil
}