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containers avatar

containers/image

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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.

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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.
963 stars·399 forks·Go·Apache-2.0·18 views

Star history

Star history chart for containers/imageStar history chart for containers/image

How this analysis was created: This summary and feature list are AI-generated from collected project material and can contain mistakes. Stars, license and language are imported from GitHub. Inclusion does not mean that we have tested or audited this project. Check the source documentation for any feature you depend on. Learn more on our About page.

Frequently asked questions

What does containers/image do?

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.

What are the main features of containers/image?

The main features of containers/image are: Transfer Utilities, Container Image Conversions, OCI Container Registry Clients, Image Copying Utilities, Image Specification Toolkits, Transfer Libraries, OCI Registry Transports, Container Image Layer Transfers.

Which projects share features with containers/image?

Projects with overlapping indexed features include: projectatomic/skopeo — Skopeo is a command line utility for inspecting, copying, and managing OCI and Docker container images across… containers/skopeo — Skopeo is an OCI container image manager and registry client designed for inspecting, copying, and signing container… apple/containerization — Containerization is a Swift-based framework that runs Linux containers in lightweight virtual machines on Apple… jessfraz/img — img is a daemon-less tool for building Open Container Initiative compliant images without requiring root privileges.… distribution/distribution — Distribution is an open-source container image registry that implements the OCI Distribution Specification, enabling… containers/ramalama — Ramalama is a containerized runtime and management tool for large language models. It functions as an OCI AI model…

Curated searches featuring Image

Hand-picked collections where Image appears.
  • Daemonless Container Image Builders
  • Container registry

Projects sharing features with Image

These projects share indexed features with Image. Shared tags can include platform or build tooling; verify the primary use case before treating a result as a replacement.
  • projectatomic/skopeoprojectatomic avatar

    projectatomic/skopeo

    11,010View on GitHub↗

    Skopeo is a command line utility for inspecting, copying, and managing OCI and Docker container images across registries and local storage. It functions as a container image tool and registry manager that performs these operations without requiring a background daemon to be running on the host. The tool specializes in daemonless image manipulation, allowing users to retrieve metadata, manifests, and tags from remote registries without pulling the full image locally. It provides capabilities for mirroring external repositories to internal registries for air-gapped deployments and manages the t

    Go
    View on GitHub↗11,010
  • containers/skopeocontainers avatar

    containers/skopeo

    10,982View on GitHub↗

    Skopeo is an OCI container image manager and registry client designed for inspecting, copying, and signing container images across different registries and storage backends. It enables the manipulation of container images using direct API calls to registries, operating independently of a local container daemon or runtime. The tool provides specialized capabilities for container image mirroring and synchronization, specifically supporting the mirroring of external repositories to internal registries for air-gapped environments. It also functions as a container image signing tool, allowing for

    Go
    View on GitHub↗10,982
  • apple/containerizationapple avatar

    apple/containerization

    8,711View on GitHub↗

    Containerization is a Swift-based framework that runs Linux containers in lightweight virtual machines on Apple Silicon Macs. It provides a native container runtime for macOS, enabling developers to execute Linux containers directly on their Apple Silicon hardware without requiring a separate Linux environment or Docker Desktop. The framework supports custom Linux kernel injection, allowing users to provide their own kernel images and select per-container kernel versions and configurations. It includes an ext4 filesystem image builder for creating root filesystems from scratch, and an OCI ima

    Swift
    View on GitHub↗8,711
  • jessfraz/imgjessfraz avatar

    jessfraz/img

    3,986View on GitHub↗

    img is a daemon-less tool for building Open Container Initiative compliant images without requiring root privileges. It functions as a standalone builder and registry client that creates container images from build files without the need for a background process or elevated system permissions. The project provides a multi-platform image generator capable of targeting different operating systems and hardware architectures. It includes an OCI registry client for authenticating with remote registries to push, pull, and manage image artifacts. The toolset covers image construction and artifact m

    Go
    View on GitHub↗3,986
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