infrastructure/nixos/hosts/olympus/nginx/configuration.nix

{ config, pkgs, nodes, ... }:
let
  proxy = url: {
    enableACME = true;
    forceSSL = true;
    locations."/" = {
      proxyPass = url;
      proxyWebsockets = true;
    };
  };
  k8s_proxy = proxy "http://kubernetes.olympus:80/";
  clientConfig = {
    "m.homeserver" = {
      base_url = "https://chat.meowy.tech";
      server_name = "meowy.tech";
    };
    "m.identity_server" = { };
  };
  serverConfig."m.server" = "chat.meowy.tech:443";
  mkWellKnown = data: ''
    add_header Content-Type application/json;
    add_header Access-Control-Allow-Origin *;
    return 200 '${builtins.toJSON data}';
  '';
in {
  # This value determines the NixOS release from which the default
  # settings for stateful data, like file locations and database versions
  # on your system were taken. It‘s perfectly fine and recommended to leave
  # this value at the release version of the first install of this system.
  # Before changing this value read the documentation for this option
  # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
  system.stateVersion = "21.05"; # Did you read the comment?

  networking.firewall.allowedTCPPorts = [ 80 443 ];

  services.nginx = {
    enable = true;
    statusPage = true;
    recommendedProxySettings = true;
    recommendedTlsSettings = true;
    recommendedOptimisation = true;
    recommendedBrotliSettings = true;
    clientMaxBodySize = "500m";

    package = pkgs.nginxMainline;

    # 0x76.dev
    virtualHosts."ha.0x76.dev" = proxy "http://home-assistant.olympus:8123/";
    virtualHosts."md.0x76.dev" = proxy "http://hedgedoc.olympus:3000/";
    virtualHosts."git.0x76.dev" = proxy "http://gitea.olympus:3000";
    virtualHosts."o.0x76.dev" = proxy "http://minio.olympus:9000";
    virtualHosts."grafana.0x76.dev" =
      proxy "http://victoriametrics.olympus:2342";
    virtualHosts."outline.0x76.dev" = proxy "http://outline.olympus:3000";
    virtualHosts."ntfy.0x76.dev" = proxy "http://ntfy.olympus:80";
    virtualHosts."ci.0x76.dev" = proxy "http://woodpecker.olympus:8000";
    virtualHosts."dex.0x76.dev" = proxy "http://dex.olympus:5556";
    virtualHosts."pass.0x76.dev" = {
      enableACME = true;
      forceSSL = true;
      locations."/" = {
        proxyPass = "http://vaultwarden.olympus:8222";
        proxyWebsockets = true;
      };
      locations."/notifications/hub/negotiate" = {
        proxyPass = "http://vaultwarden.olympus:8222";
        proxyWebsockets = true;
      };
      locations."/notifications/hub" = {
        proxyPass = "http://vaultwarden.olympus:3012";
        proxyWebsockets = true;
      };
    };

    # Redshifts
    virtualHosts."andreea.redshifts.xyz" = proxy "http://zmeura.olympus:8008";

    # Meow
    virtualHosts."meowy.tech" = {
      enableACME = true;
      forceSSL = true;
      locations."/".extraConfig = ''

        add_header Content-Type 'text/html; charset=UTF-8';
        return 200 '<h1>meow</h1>';
      '';
      locations."= /.well-known/matrix/client".extraConfig =
        mkWellKnown clientConfig;
      locations."= /.well-known/matrix/server".extraConfig =
        mkWellKnown serverConfig;
    };
    virtualHosts."chat.meowy.tech" = {
      enableACME = true;
      forceSSL = true;
      locations."/".extraConfig = ''
        return 307 https://element.chat.meowy.tech;
      '';
      locations."/_matrix".proxyPass = "http://synapse.olympus:8008";
      locations."/_synapse/client".proxyPass = "http://synapse.olympus:8008";
      locations."/_synapse/admin" = {
        # Allow only local and my own IPs
        extraConfig = ''
          allow 127.0.0.1;
          allow 10.42.42.0/23;
          allow 192.168.0.0/23;
          allow 80.60.83.220;
          allow 195.85.167.32/23;
          deny all;
        '';
        proxyPass = "http://synapse.olympus:8008";
      };
    };
    virtualHosts."element.chat.meowy.tech" = {
      enableACME = true;
      forceSSL = true;

      root = pkgs.element-web.override {
        conf = {
          default_server_config = clientConfig;
          show_labs_settings = true;
          brand = "chat.meowy.tech";
        };
      };
    };
    virtualHosts."cinny.chat.meowy.tech" = {
      enableACME = true;
      forceSSL = true;

      root = pkgs.cinny.override {
        conf = {
          defaultHomeserver = 0;
          allowCustomHomeservers = false;
          homeserverList = [ "chat.meowy.tech" ];
        };
      };
    };
    virtualHosts."admin.chat.meowy.tech" = {
      enableACME = true;
      forceSSL = true;
      root = pkgs.synapse-admin;
    };
    virtualHosts."books.meowy.tech" = proxy "http://bookwyrm.olympus:8001";

    # Kubernetes endpoints
    virtualHosts."0x76.dev" = k8s_proxy;
    virtualHosts."internal.xirion.net" = k8s_proxy;
    virtualHosts."blog.xirion.net" = k8s_proxy;
  };

  security.acme.defaults.email = "victorheld12@gmail.com";
  security.acme.acceptTerms = true;
  security.acme.preliminarySelfsigned = true;

  services.prometheus.exporters = {
    nginx = {
      enable = true;
      openFirewall = true;
    };
  };
}