nix-config/hosts/containers/scrape/default.nix

{ config, pkgs, lib, modulesPath, ... }:

let
  freifunkNodes = {
    "1139" = "10.200.4.120";
    "1884" = "10.200.7.100";
    "1891" = "10.200.7.107";
    "1099" = "10.200.4.80";
    "1864" = "10.200.7.80";
  };
in {
  c3d2.isInHq = false;

  networking.hostName = "scrape";
  networking.interfaces.eth0.ipv4.addresses = [{
    address = "172.20.73.32";
    prefixLength = 26;
  }];
  networking.defaultGateway = "172.20.73.1";

  # Required for krops
  services.openssh.enable = true;
  environment.systemPackages = [ pkgs.git ];

  systemd.services = let
    scrapers = import (pkgs.fetchgit {
      url = "https://gitea.c3d2.de/astro/scrapers.git";
      rev = "77c864b4d7e1ef4075ed115b036791c75176bef7";
      sha256 = "1rj4dyn89zqyfaiv2ffi6g4x86l2xfgybyy5hlvxzgcabwaxdjyh";
    }) { inherit pkgs; };
    makeService = { script, host, user ? "", password ? "" }: {
      script =
        "${scrapers.${script}}/bin/${script} ${host} ${user} ${password}";
    };
    makeNodeScraper = nodeId: {
      name = "scrape-node${nodeId}";
      value = makeService {
        script = "freifunk_node";
        host = freifunkNodes.${nodeId};
      };
    };
  in {
    scrape-xeri = makeService {
      script = "xerox";
      host = "xeri.hq.c3d2.de";
      inherit (pkgs.scrape-xeri-login) user password;
    };
    scrape-roxi = makeService {
      script = "xerox";
      host = "roxi.hq.c3d2.de";
    };
    scrape-fhem = makeService {
      script = "fhem";
      host = "fhem.hq.c3d2.de";
      inherit (pkgs.scrape-fhem-login) user password;
    };
    scrape-matemat = makeService {
      script = "matemat";
      host = "matemat.hq.c3d2.de";
      inherit (pkgs.scrape-matemat-login) user password;
    };
  } // builtins.listToAttrs
  (map makeNodeScraper (builtins.attrNames freifunkNodes));

  systemd.timers = let
    makeTimer = service: interval: {
      partOf = [ "${service}.service" ];
      wantedBy = [ "timers.target" ];
      timerConfig.OnCalendar = interval;
    };
    makeNodeScraperTimer = nodeId:
      let name = "scrape-node${nodeId}";
      in {
        inherit name;
        value = makeTimer name "minutely";
      };
  in {
    scrape-xeri = makeTimer "scrape-xeri.service" "minutely";
    scrape-roxi = makeTimer "scrape-roxi.service" "minutely";
    scrape-fhem = makeTimer "scrape-fhem.service" "minutely";
    scrape-matemat = makeTimer "scrape-matemat.service" "minutely";
  } // builtins.listToAttrs
  (map makeNodeScraperTimer (builtins.attrNames freifunkNodes));

  # This value determines the NixOS release with which your system is to be
  # compatible, in order to avoid breaking some software such as database
  # servers. You should change this only after NixOS release notes say you
  # should.
  system.stateVersion = "20.03"; # Did you read the comment?
}