Packsnap

Packsnap is a pure-Nix library (based on flakes) for building Docker images with little to no configuration. Heavily inspired by Nixpacks.

Usage

To use it, just add a flake.nix to your project (using whatever output name you want, my-image is just an example):

{
  description = "My fantastic new containerized project";

  inputs.packsnap.url = "https://flakehub.com/f/aleksrutins/packsnap/*.tar.gz";
  inputs.flake-utils.url = "github:numtide/flake-utils";

  outputs = { self, nixpkgs, flake-utils, packsnap }: flake-utils.lib.eachDefaultSystem (system: {
      packages.my-image = packsnap.lib.${system}.build { name = "my-image"; path = ./.; };
  });
}

and build it with:

$ nix build .#my-image
$ docker load < result