coldsnap.nix

/* $ time aws ec2 register-image --output text --region us-east-2 --name "coldsnap-test-staging-10" --architecture x86_64 --ena-support --sriov-net-support simple --virtualization-type hvm --block-device-mappings "[ { \"DeviceName\": \"/dev/sda1\", \"Ebs\": { \"SnapshotId\": \"$(coldsnap --region us-east-2 upload --wait /nix/store/nngyyq6j149fj98nq8ds8v10c31ksqdx-routing-disk-image/nixos.img)\" } } ]" --query 'ImageId' --root-device-name /dev/sda1
   ami-0cc753b15aaf9b198

   real    0m31.255s
   user    0m24.215s
   sys     0m7.335s

   $ du -chs  /nix/store/nngyyq6j149fj98nq8ds8v10c31ksqdx-routing-disk-image/nixos.img
   2.5G    /nix/store/nngyyq6j149fj98nq8ds8v10c31ksqdx-routing-disk-image/nixos.img
   2.5G    total
*/

{ lib, fetchFromGitHub, rustPlatform, openssl, pkg-config }:

rustPlatform.buildRustPackage rec {
  pname = "coldsnap";
  version = "v0.4.1";
  nativeBuildInputs = [ pkg-config ];
  propagatedBuildInputs = [ openssl ];

  src = fetchFromGitHub {
    owner = "awslabs";
    repo = pname;
    rev = version;
    sha256 = "sha256-0NSRD+OZOhKR0l37BE/5T+u+ictGjzdYgqTTiB9+uVo=";
  };

  cargoSha256 = "sha256-txnZpqxRgr5k8zgquYo5FT9iidvPkm6EVSLuU1UhbPQ=";
}