Module image 

Image reading and manifest parsing.

This module provides access to OCI image manifests and metadata stored in the overlay-images/ directory. All operations use fd-relative access via cap-std Dir handles.

Overview

The Image struct represents a container image stored in the overlay driver. It provides access to:

• OCI image manifests (oci_spec::image::ImageManifest)
• OCI image configurations (oci_spec::image::ImageConfiguration)
• Layer information (diff_ids that map to storage layer IDs)
• Additional metadata stored in base64-encoded files

Image Directory Structure

Each image is stored in overlay-images/<image-id>/:

overlay-images/<image-id>/
+-- manifest              # OCI image manifest (JSON)
+-- =<base64-key>         # Additional metadata files

Structs

Image

Represents an OCI image with its metadata and manifest.