123 lines
4.6 KiB
Nix
123 lines
4.6 KiB
Nix
{
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description =
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"Planning Poker web app. Trying to build something and learn new things";
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inputs.nixpkgs.url = "github:nixos/nixpkgs";
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inputs.flake-utils.url = "github:numtide/flake-utils";
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inputs.sbt-derivation.url = "github:zaninime/sbt-derivation/master";
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inputs.sbt-derivation.inputs.nixpkgs.follows = "nixpkgs";
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outputs = { self, nixpkgs, flake-utils, sbt-derivation }:
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flake-utils.lib.eachDefaultSystem (system:
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let
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pkgs = nixpkgs.legacyPackages.${system};
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packageName = "planning-poker-kazbegi";
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backendName = "${packageName}-backend";
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version = "0.1.1";
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backendPackage = sbt-derivation.lib.mkSbtDerivation rec {
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inherit pkgs version;
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# ...and the rest of the arguments
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pname = "${backendName}";
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depsSha256 = "sha256-7MNlMeljYqXY4/kK4BXoycp9xUz0tGwCQvPTlE1RIQU=";
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src = pkgs.nix-gitignore.gitignoreSource [ ] ./.;
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buildPhase = ''
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sbt backend/assembly
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'';
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installPhase = ''
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mkdir -p $out/bin
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cp backend/target/scala-*/backend-assembly-*.jar $out/bin/${pname}.jar
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'';
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};
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in {
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# Development shell with things required for local dev
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devShells.default = pkgs.mkShell {
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buildInputs = [
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pkgs.nodejs
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pkgs.sbt
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pkgs.scalafmt
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pkgs.jdk
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# pkgs.nodePackages.tailwindcss
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# pkgs.nodePackages.postcss
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];
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shellHook = ''
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echo "dev env for planning poker BWARGH started"
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'';
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};
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# Just the backend jar
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packages.backend = backendPackage;
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# Module for NixOS to allow starting backend as SystemD service
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nixosModules.backendApp = { config, pkgs, ... }:
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let
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cfg = config.services.${backendName};
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lib = pkgs.lib;
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in {
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options.services.${backendName} = {
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enable =
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lib.mkEnableOption "My frontendmentor exercise ${backendName}";
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port = lib.mkOption {
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type = lib.types.int;
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default = 8080;
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description = "Port to listen on.";
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};
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host = lib.mkOption {
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type = lib.types.str;
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default = "localhost";
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description = "Host to bind to.";
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};
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useNginx = lib.mkOption {
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type = lib.types.bool;
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default = true;
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description = "Whether to use Nginx to proxy requests.";
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};
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};
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config.users = lib.mkIf cfg.enable {
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groups."${backendName}" = { };
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users."${backendName}" = {
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isSystemUser = true;
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group = "${backendName}";
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};
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};
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config.systemd.services.${backendName} = lib.mkIf cfg.enable {
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description = "Exercise app ${backendName}";
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wantedBy = [ "multi-user.target" ];
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after = [ "network.target" ];
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startLimitIntervalSec = 30;
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startLimitBurst = 10;
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serviceConfig =
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let serverHost = if cfg.useNginx then "localhost" else cfg.host;
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in {
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ExecStart =
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"${pkgs.jdk}/bin/java -jar ${backendPackage}/bin/${backendName}.jar -p ${
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toString cfg.port
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} --host ${serverHost}";
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WorkingDirectory = "${backendPackage}/bin";
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Restart = "on-failure";
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User = "${backendName}";
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Group = "${backendName}";
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};
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};
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config.services.nginx.virtualHosts.${cfg.host}.locations."/api" =
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lib.mkIf cfg.enable {
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proxyPass = "http://127.0.0.1:${toString cfg.port}";
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# this is config for websocket
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extraConfig = ''
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rewrite ^/api/(.*)$ /$1 break;
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proxy_set_header Host $host;
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proxy_set_header X-Real-IP $remote_addr;
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proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
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proxy_set_header X-Forwarded-Proto $scheme;
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# Add the following lines for WebSocket support
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proxy_http_version 1.1;
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proxy_set_header Upgrade $http_upgrade;
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proxy_set_header Connection "upgrade";
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'';
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};
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};
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});
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# see https://serokell.io/blog/practical-nix-flakes
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}
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