commit 3c527816e0fdc470d4891979b21395df1e545beb · dunkirk.sh/dots

+10

machines/terebithia/default.nix

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             file = ../../secrets/cachet.age;

     

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             owner = "cachet";

     

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           };

     

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           hn-alerts = {

     

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             file = ../../secrets/hn-alerts.age;

     

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             owner = "hn-alerts";

     

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           };

     

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           cloudflare = {

     

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             file = ../../secrets/cloudflare.age;

     

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             owner = "caddy";

     
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           enable = true;

     

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           domain = "cachet.dunkirk.sh";

     

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           secretsFile = config.age.secrets.cachet.path;

     

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         };

     

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         atelier.services.hn-alerts = {

     

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           enable = true;

     

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           domain = "hn.dunkirk.sh";

     

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           secretsFile = config.age.secrets.hn-alerts.path;

     

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         };

     

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         boot.loader.systemd-boot.enable = true;

+133

modules/nixos/services/hn-alerts.nix

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       {

     

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         config,

     

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         lib,

     

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         pkgs,

     

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         ...

     

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       }:

     

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       let

     

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         cfg = config.atelier.services.hn-alerts;

     

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       in

     

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       {

     

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         options.atelier.services.hn-alerts = {

     

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           enable = lib.mkEnableOption "HN Alerts Hacker News monitoring service";

     

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           domain = lib.mkOption {

     

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             type = lib.types.str;

     

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             description = "Domain to serve hn-alerts on";

     

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           };

     

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           port = lib.mkOption {

     

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             type = lib.types.port;

     

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             default = 3001;

     

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             description = "Port to run hn-alerts on";

     

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           };

     

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           dataDir = lib.mkOption {

     

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             type = lib.types.path;

     

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             default = "/var/lib/hn-alerts";

     

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             description = "Directory to store hn-alerts data";

     

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           };

     

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       +
       

     

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           secretsFile = lib.mkOption {

     

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             type = lib.types.path;

     

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             description = "Path to secrets file containing SLACK_BOT_TOKEN, SLACK_SIGNING_SECRET, SLACK_CHANNEL, SENTRY_DSN, DATABASE_URL";

     

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           };

     

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           repository = lib.mkOption {

     

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             type = lib.types.str;

     

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             default = "https://github.com/taciturnaxolotl/hn-alerts.git";

     

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             description = "Git repository URL (optional, for auto-deployment)";

     

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           };

     

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           autoUpdate = lib.mkEnableOption "Automatically git pull on service restart";

     

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         };

     

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         config = lib.mkIf cfg.enable {

     

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           users.groups.services = { };

     

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           users.users.hn-alerts = {

     

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             isSystemUser = true;

     

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             group = "hn-alerts";

     

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             extraGroups = [ "services" ];

     

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             home = cfg.dataDir;

     

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             createHome = true;

     

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             shell = pkgs.bash;

     

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           };

     

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           users.groups.hn-alerts = { };

     

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           security.sudo.extraRules = [

     

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             {

     

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               users = [ "hn-alerts" ];

     

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               commands = [

     

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                 {

     

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                   command = "/run/current-system/sw/bin/systemctl restart hn-alerts.service";

     

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                   options = [ "NOPASSWD" ];

     

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                 }

     

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               ];

     

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             }

     

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           ];

     

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           systemd.services.hn-alerts = {

     

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             description = "HN Alerts Hacker News monitoring service";

     

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             wantedBy = [ "multi-user.target" ];

     

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             after = [ "network.target" ];

     

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             path = [ pkgs.git ];

     

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             preStart = ''

     

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               cd ${cfg.dataDir}/app

     

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               if [ ! -d .git ]; then

     

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                 ${pkgs.git}/bin/git clone ${cfg.repository} .

     

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               fi

     

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             '' + lib.optionalString cfg.autoUpdate ''

     

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               ${pkgs.git}/bin/git pull

     

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             '' + ''

     

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               if [ ! -f src/index.ts ]; then

     

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                 echo "No code found at ${cfg.dataDir}/app/src/index.ts"

     

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                 exit 1

     

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               fi

     

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               echo "Installing dependencies..."

     

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               ${pkgs.unstable.bun}/bin/bun install

     

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               echo "Initializing database..."

     

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               ${pkgs.unstable.bun}/bin/bun run db:push

     

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             '';

     

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             serviceConfig = {

     

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               Type = "simple";

     

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               User = "hn-alerts";

     

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               Group = "hn-alerts";

     

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               EnvironmentFile = cfg.secretsFile;

     

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               Environment = [

     

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                 "NODE_ENV=production"

     

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                 "PORT=${toString cfg.port}"

     

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               ];

     

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               ExecStart = "${pkgs.bash}/bin/bash -c 'cd ${cfg.dataDir}/app && ${pkgs.unstable.bun}/bin/bun start'";

     

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               Restart = "always";

     

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               RestartSec = "10s";

     

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             };

     

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             serviceConfig.ExecStartPre = [

     

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               "+${pkgs.writeShellScript "hn-alerts-setup" ''

     

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                 mkdir -p ${cfg.dataDir}/data

     

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                 mkdir -p ${cfg.dataDir}/app

     

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                 chown -R hn-alerts:services ${cfg.dataDir}

     

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                 chmod -R g+rwX ${cfg.dataDir}

     

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               ''}"

     

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             ];

     

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           };

     

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           services.caddy.virtualHosts.${cfg.domain} = {

     

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             extraConfig = ''

     

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               tls {

     

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                 dns cloudflare {env.CLOUDFLARE_API_TOKEN}

     

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               }

     

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               reverse_proxy localhost:${toString cfg.port}

     

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             '';

     

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           };

     

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         };

     

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       }

secrets/hn-alerts.age

This is a binary file and will not be displayed.

secrets/secrets.nix

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         "cachet.age".publicKeys = [

     

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           kierank

     

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         ];

     

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         "hn-alerts.age".publicKeys = [

     

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           kierank

     

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         ];

     

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       }