nix-bitcoin/flake.nix

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{
description = ''
A collection of Nix packages and NixOS modules for easily
installing full-featured Bitcoin nodes with an emphasis on security.
'';
inputs = {
nixpkgs.url = "github:NixOS/nixpkgs/nixos-22.05";
nixpkgsUnstable.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
flake-utils.url = "github:numtide/flake-utils";
};
outputs = { self, nixpkgs, nixpkgsUnstable, flake-utils }:
let
supportedSystems = [
"x86_64-linux"
"i686-linux"
"aarch64-linux"
"armv7l-linux"
];
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in {
lib = {
mkNbPkgs = {
system
, pkgs ? nixpkgs.legacyPackages.${system}
, pkgsUnstable ? nixpkgsUnstable.legacyPackages.${system}
}:
import ./pkgs { inherit pkgs pkgsUnstable; };
};
overlays.default = final: prev: let
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nbPkgs = self.lib.mkNbPkgs { inherit (final) system; pkgs = final; };
in removeAttrs nbPkgs [ "pinned" "nixops19_09" "krops" ];
nixosModules.default = { config, pkgs, lib, ... }: {
imports = [ ./modules/modules.nix ];
options = with lib; {
nix-bitcoin.useVersionLockedPkgs = mkOption {
type = types.bool;
default = false;
description = ''
Use the nixpkgs version locked by this flake for `nix-bitcoin.pkgs`.
Only relevant if you are using a nixpkgs version for evaluating your system
that differs from the one that is locked by this flake (via input `nixpkgs`).
If this is the case, enabling this option may result in a more stable system
because the nix-bitcoin services use the exact pkgs versions that are tested
by nix-bitcoin.
The downsides are increased evaluation times and increased system
closure size.
If `false`, the default system pkgs are used.
'';
};
};
config = {
nix-bitcoin.pkgs =
if config.nix-bitcoin.useVersionLockedPkgs
then (self.lib.mkNbPkgs { inherit (config.nixpkgs) system; }).modulesPkgs
else (self.lib.mkNbPkgs { inherit (pkgs) system; inherit pkgs; }).modulesPkgs;
};
};
templates.default = {
description = "Basic node template";
path = ./examples/flakes;
};
} // (flake-utils.lib.eachSystem supportedSystems (system:
let
pkgs = nixpkgs.legacyPackages.${system};
nbPkgs = self.lib.mkNbPkgs { inherit system pkgs; };
in rec {
packages = flake-utils.lib.flattenTree (removeAttrs nbPkgs [
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"fetchNodeModules"
"krops"
"modulesPkgs"
"netns-exec"
"nixops19_09"
"pinned"
"generate-secrets"
]) // {
inherit (import ./examples/qemu-vm/minimal-vm.nix self pkgs system)
# A simple demo VM.
# See ./examples/flakes/flake.nix on how to use nix-bitcoin with flakes.
runVM
vm;
};
# Allow accessing the whole nested `nbPkgs` attrset (including `modulesPkgs`)
# via this flake.
# `packages` is not allowed to contain nested pkgs attrsets.
legacyPackages = nbPkgs;
apps = rec {
default = vm;
# Run a basic nix-bitcoin node in a VM
vm = {
type = "app";
program = toString packages.runVM;
};
};
}
));
}