bonfire-app/flake.nix

167 lines
5.5 KiB
Nix

{
description = "Bonfire self contained build";
inputs = {
nixpkgs = { url = "github:NixOS/nixpkgs/nixpkgs-unstable"; };
flake-utils = { url = "github:numtide/flake-utils"; };
};
outputs = { self, nixpkgs, flake-utils, ... }:
let
# props to hold settings to apply on this file like name and version
props = import ./props.nix;
# set elixir nix version
elixir_nix_version = elixir_version:
builtins.replaceStrings [ "." ] [ "_" ] "elixir_${elixir_version}";
erlang_nix_version = erlang_version: "erlangR${erlang_version}";
in
flake-utils.lib.eachSystem flake-utils.lib.defaultSystems (system:
let
inherit (nixpkgs.lib) optional;
pkgs = import nixpkgs { inherit system; };
# project name for mix release
pname = props.app_name;
# project version for mix release
version = props.app_version;
# use ~r/erlangR[1-9]+/ for specific erlang release version
beamPackages = pkgs.beam.packagesWith
pkgs.beam.interpreters.${erlang_nix_version props.erlang_release};
# all elixir and erlange packages
erlang = beamPackages.erlang;
# use ~r/elixir_1_[1-9]+/ major elixir version
elixir = beamPackages.${elixir_nix_version props.elixir_release};
elixir-ls = beamPackages.elixir_ls.overrideAttrs
(oldAttrs: rec { elixir = elixir; });
hex = beamPackages.hex;
# use rebar from nix instead of fetch externally
rebar3 = beamPackages.rebar3;
rebar = beamPackages.rebar;
locality = pkgs.glibcLocales;
# needed to set libs for mix2nix
lib = pkgs.lib;
mix2nix = pkgs.mix2nix;
installHook = { release }: ''
export APP_VERSION="${version}"
export APP_NAME="${pname}"
export ELIXIR_RELEASE="${props.elixir_release}"
runHook preInstall
mix release --no-deps-check --path "$out" ${release}
runHook postInstall
'';
# src of the project
src = ./.;
# mix2nix dependencies
mixNixDeps = import ./deps.nix { inherit lib beamPackages; };
# mix release definition
release-prod = beamPackages.mixRelease {
inherit src pname version mixNixDeps elixir;
mixEnv = "prod";
installPhase = installHook { release = "prod"; };
};
release-dev = beamPackages.mixRelease {
inherit src pname version mixNixDeps elixir;
mixEnv = "dev";
enableDebugInfo = true;
installPhase = installHook { release = "dev"; };
};
in
rec {
# packages to build
packages = {
prod = release-prod;
dev = release-dev;
container = pkgs.dockerTools.buildImage {
name = pname;
tag = packages.prod.version;
# required extra packages to make release work
contents =
[ packages.prod pkgs.coreutils pkgs.gnused pkgs.gnugrep ];
created = "now";
config.Entrypoint = [ "${packages.prod}/bin/prod" ];
config.Cmd = [ "version" ];
};
oci = pkgs.ociTools.buildContainer {
args = [ "${packages.prod}/bin/prod" ];
};
default = packages.prod;
};
# apps to run with nix run
apps = {
prod = flake-utils.lib.mkApp {
name = pname;
drv = packages.prod;
exePath = "/bin/prod";
};
dev = flake-utils.lib.mkApp {
name = "${pname}-dev";
drv = packages.dev;
exePath = "/bin/dev";
};
default = apps.prod;
};
# Module for deployment
nixosModules.bonfire = import ./nix/module.nix;
nixosModule = nixosModules.bonfire;
devShells.default = pkgs.mkShell {
shellHook = ''
export APP_VERSION="${version}"
export APP_NAME="${pname}"
export ELIXIR_MAJOR_RELEASE="${props.elixir_release}"
export MIX_HOME="$PWD/.cache/mix";
export HEX_HOME="$PWD/.cache/hex";
export MIX_PATH="${hex}/lib/erlang/lib/hex/ebin"
export PATH="$MIX_PATH/bin:$HEX_HOME/bin:$PATH"
mix local.rebar --if-missing rebar3 ${rebar3}/bin/rebar3;
mix local.rebar --if-missing rebar ${rebar}/bin/rebar;
export PGDATA=$PWD/db
export PGHOST=$PWD/db
export PGUSERNAME=${props.PGUSERNAME}
export PGPASS=${props.PGPASS}
export PGDATABASE=${props.PGDATABASE}
export POSTGRES_USER=${props.PGUSERNAME}
export POSTGRES_PASSWORD=${props.PGPASS}
export POSTGRES_DB=${props.PGDATABASE}
if [[ ! -d $PGDATA ]]; then
mkdir $PGDATA
# comment out if not using CoW fs
chattr +C $PGDATA
initdb -D $PGDATA
fi
'';
buildInputs = [
elixir
erlang
mix2nix
locality
rebar3
rebar
pkgs.yarn
pkgs.cargo
pkgs.rustc
(pkgs.postgresql_12.withPackages (p: [ p.postgis ]))
] ++ optional pkgs.stdenv.isLinux
pkgs.libnotify # For ExUnit Notifier on Linux.
++ optional pkgs.stdenv.isLinux
pkgs.meilisearch # For meilisearch when running linux only
++ optional pkgs.stdenv.isLinux
pkgs.inotify-tools; # For file_system on Linux.
};
});
}