containers/image
Image
This project is a container image transfer library and programmatic toolkit designed for moving and managing container images between distinct registries, storage backends, and file formats. It provides an OCI image specification toolkit for inspecting, parsing, and converting image formats across different registry implementations without format loss, acting as a registry client library for interacting with remote endpoints to pull, push, and inspect manifests.
The library features a transport-plugin architecture that uses modular communication handlers to connect remote registries, local storage backends, and archived file formats. It implements an OCI manifest-based abstraction layer to represent container images independently of their physical transport formats, supported by streaming layer-blob processing that transfers individual image layers directly between endpoints.
Operations are reinforced by cryptographic digest verification to validate the integrity of transferred manifests and content layers, alongside configuration-driven policy enforcement that applies security restrictions, signature checks, and destination constraints dynamically according to user-defined rules.
Features
- Transfer Utilities - Moves container images between distinct registries, storage backends, and file formats using command-line commands or programmatic scripts.
- Container Image Conversions - Converts container images between various file formats and storage types for different runtime environments.
- OCI Container Registry Clients - Acts as a registry client library for interacting with remote endpoints to pull, push, and inspect container images and manifests.
- Image Copying Utilities - Copies container images between different registries and storage backends while preserving format compatibility and image integrity.
- Image Specification Toolkits - Provides an OCI image specification toolkit for inspecting, parsing, and converting image formats across different registry implementations without format loss.
- Transfer Libraries - Provides a tool for moving container images between distinct registries, storage backends, and file formats via command-line operations or programmatic scripts.
- OCI Registry Transports - Defines a unified internal data structure representing container images independently of their physical registry transport formats.
- Container Image Layer Transfers - Transfers individual container image layers directly between source and destination endpoints without loading entire archives into memory.
- Container Image Management - Moves container images between different registries and storage backends while preserving format compatibility and image integrity.
- Registry Migration Utilities - Transfers container images between distinct registries programmatically or via command-line tools for backup and migration.
- Configuration and Policy Enforcement - Applies security restrictions, signature checks, and destination constraints dynamically according to user-defined rules.
- Cryptographic Verification - Validates the integrity of transferred image manifests and content layers using cryptographic hashes during transit.
- Modular Plugin Architectures - Uses modular communication handlers to connect distinct remote registries, local storage backends, and archived file formats.
