nix2container
A Nix-based tool for building container images efficiently without writing tarballs to the Nix store and enabling layer reuse.
What is nix2container?
nix2container is a Nix library for building container images efficiently. It implements an archive-less alternative to dockerTools.buildImage, avoiding tarball writes to the Nix store and enabling layer reuse. This solves the problem of slow rebuild and push cycles in container development workflows.
Nix users and DevOps engineers who build container images with Nix and want faster iteration times. It's particularly useful for teams using Nix in CI/CD pipelines for container deployment.
Developers choose nix2container for its significant speed improvements in rebuild and push cycles compared to traditional dockerTools methods. Its unique selling point is the ability to skip already pushed layers without rebuilding them, reducing both build time and network usage.
Overview
An archive-less dockerTools.buildImage implementation
Use Cases
Best For
- Building container images with Nix for CI/CD pipelines
- Optimizing container layer caching to avoid redundant pushes
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