nixos/applications/ulfm.nix

{ config, lib, pkgs, ... }:
  with lib;
  let
    cfg = config.services.skynet_ulfm;
  in {

  imports = [
    ./acme.nix
    ./dns.nix
    ./firewall.nix
    ./nginx.nix
  ];

  options.services.skynet_ulfm = {
     enable = mkEnableOption "ULFM service";

     host = {
       ip = mkOption {
         type = types.str;
       };

       name = mkOption {
         type = types.str;
       };
     };

     domain = {
       tld = mkOption {
         type = types.str;
         default = "ie";
       };

       base = mkOption {
         type = types.str;
         default = "skynet";
       };

       sub = mkOption {
         type = types.str;
         default = "ulfm";
       };
     };
  };

  config = mkIf cfg.enable {
    # shove the entire config file into secrets
    age.secrets.ulfm.file = ../secrets/stream_ulfm.age;

    networking.firewall.allowedTCPPorts = [
      8000
    ];

    skynet_acme.domains = [
      "${cfg.domain.sub}.${cfg.domain.base}.${cfg.domain.tld}"
    ];

    skynet_dns.records = [
      {record=cfg.domain.sub; r_type="CNAME"; value=cfg.host.name;}
    ];

    skynet_firewall.forward = [
      "ip daddr ${cfg.host.ip} tcp dport 80 counter packets 0 bytes 0 accept"
      "ip daddr ${cfg.host.ip} tcp dport 443 counter packets 0 bytes 0 accept"
      "ip daddr ${cfg.host.ip} tcp dport 8000 counter packets 0 bytes 0 accept"
    ];

    users.groups."icecast" = {};

    users.users."icecast2" = {
      createHome = true;
      isSystemUser = true;
      home = "/etc/icecast2";
      group = "icecast";
    };

    systemd.services.icecast = {
      after = [ "network.target" ];
      description = "Icecast Network Audio Streaming Server";
      wantedBy = [ "multi-user.target" ];

      preStart = "mkdir -p /var/log/icecast && chown nobody:nogroup /var/log/icecast";
      serviceConfig = {
        Type = "simple";
        ExecStart = "${pkgs.icecast}/bin/icecast -c /run/agenix/ulfm";
        ExecReload = "${pkgs.coreutils}/bin/kill -HUP $MAINPID";
      };
    };

    services.nginx.virtualHosts."${cfg.domain.sub}.${cfg.domain.base}.${cfg.domain.tld}" = {
      forceSSL = true;
      useACMEHost = "skynet";
      locations."/".proxyPass = "http://localhost:8000";
    };

  };

}