Function ImageFromNative

pkg/inspecttypes/dockercompat/dockercompat.go:692–749

(nativeImage *native.Image)

}

func ImageFromNative(nativeImage *native.Image) (*Image, error) {
	imgOCI := nativeImage.ImageConfig
	repository, tag := imgutil.ParseRepoTag(nativeImage.Image.Name)

	image := &Image{
		// Docker ID (digest of platform-specific config), not containerd ID (digest of multi-platform index or manifest)
		ID:           nativeImage.ImageConfigDesc.Digest.String(),
		Parent:       nativeImage.Image.Labels["org.mobyproject.image.parent"],
		Architecture: imgOCI.Architecture,
		Variant:      imgOCI.Platform.Variant,
		Os:           imgOCI.OS,
		Size:         nativeImage.Size,
		VirtualSize:  nativeImage.Size,
		RepoTags:     []string{fmt.Sprintf("%s:%s", repository, tag)},
		RepoDigests:  []string{fmt.Sprintf("%s@%s", repository, nativeImage.Image.Target.Digest.String())},
	}

	if len(imgOCI.History) > 0 {
		image.Comment = imgOCI.History[len(imgOCI.History)-1].Comment
		if !imgOCI.History[len(imgOCI.History)-1].Created.IsZero() {
			image.Created = imgOCI.History[len(imgOCI.History)-1].Created.Format(time.RFC3339Nano)
		}
		image.Author = imgOCI.History[len(imgOCI.History)-1].Author
	}

	image.RootFS.Type = imgOCI.RootFS.Type
	for _, d := range imgOCI.RootFS.DiffIDs {
		image.RootFS.Layers = append(image.RootFS.Layers, d.String())
	}

	portSet := make(nat.PortSet)
	for k := range imgOCI.Config.ExposedPorts {
		portSet[nat.Port(k)] = struct{}{}
	}

	image.Config = &Config{
		Cmd:          imgOCI.Config.Cmd,
		Volumes:      imgOCI.Config.Volumes,
		Env:          imgOCI.Config.Env,
		User:         imgOCI.Config.User,
		WorkingDir:   imgOCI.Config.WorkingDir,
		Entrypoint:   imgOCI.Config.Entrypoint,
		Labels:       imgOCI.Config.Labels,
		ExposedPorts: portSet,
		Image:        nativeImage.Image.Name,
	}

	// Add health check if present in labels
	if healthStr, ok := imgOCI.Config.Labels[labels.HealthCheck]; ok && healthStr != "" {
		healthCheckConfig, err := healthcheck.HealthCheckFromJSON(healthStr)
		if err != nil {
			return nil, fmt.Errorf("failed to parse healthcheck label: %w", err)
		}
		image.Config.Healthcheck = healthCheckConfig
	}

	return image, nil
}