feat(tazjin/polyanka): Check in host configuration

This host was previously managed manually, now adding it to depot
because doing that was a huge hassle.

Change-Id: I1e212fce13da735b5329578d9b2dd8f370f25cbc
Reviewed-on: https://cl.tvl.fyi/c/depot/+/5357
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>

users/tazjin/nixos/default.nix

@@ -1,10 +1,9 @@
 { depot, lib, ... }:
 
 let systemFor = sys: (depot.ops.nixos.nixosFor sys).system;
-in {
+in depot.nix.readTree.drvTargets {
   camdenSystem = systemFor depot.users.tazjin.nixos.camden;
   frogSystem = systemFor depot.users.tazjin.nixos.frog;
   tverskoySystem = systemFor depot.users.tazjin.nixos.tverskoy;
-
-  meta.ci.targets = [ "camdenSystem" "frogSystem" "tverskoySystem" ];
+  polyankaSystem = (depot.ops.nixos.nixosFor depot.users.tazjin.nixos.polyanka).system;
 }

users/tazjin/nixos/polyanka/default.nix

@@ -0,0 +1,107 @@
+# VPS hosted at GleSYS, running my Quassel and some random network
+# stuff.
+
+_: # ignore readTree options
+
+{ config, depot, lib, pkgs, ... }:
+
+let
+  mod = name: depot.path + ("/ops/modules/" + name);
+in
+{
+  imports = [
+    (mod "quassel.nix")
+  ];
+
+  # Use the GRUB 2 boot loader.
+  boot.loader.grub.enable = true;
+  boot.loader.grub.version = 2;
+  boot.loader.grub.device = "/dev/sda"; # or "nodev" for efi only
+  boot.initrd.availableKernelModules = [ "ata_piix" "vmw_pvscsi" "sd_mod" "sr_mod" ];
+
+  fileSystems."/" =
+    {
+      device = "/dev/disk/by-uuid/4c51357a-1e34-4b59-b169-63af1fcdce71";
+      fsType = "ext4";
+    };
+
+  networking = {
+    hostName = "polyanka";
+    domain = "tazj.in";
+    useDHCP = false;
+
+    # Required for VPN usage
+    networkmanager.enable = true;
+
+    interfaces.ens192 = {
+      ipv4.addresses = lib.singleton {
+        address = "159.253.30.129";
+        prefixLength = 24;
+      };
+
+      ipv6.addresses = lib.singleton {
+        address = "2a02:750:7:3305::308";
+        prefixLength = 64;
+      };
+    };
+
+    defaultGateway = "159.253.30.1";
+    defaultGateway6.address = "2a02:750:7:3305::1";
+
+    firewall.enable = false;
+
+    nameservers = [
+      "79.99.4.100"
+      "79.99.4.101"
+      "2a02:751:aaaa::1"
+      "2a02:751:aaaa::2"
+    ];
+  };
+
+  time.timeZone = "UTC";
+
+  security.acme.acceptTerms = true;
+  security.acme.certs."polyanka.tazj.in" = {
+    listenHTTP = ":80";
+    email = "mail@tazj.in";
+    group = "quassel";
+  };
+
+  users.users.tazjin = {
+    isNormalUser = true;
+    extraGroups = [ "wheel" ];
+    shell = pkgs.fish;
+    openssh.authorizedKeys.keys = [
+      "sk-ecdsa-sha2-nistp256@openssh.com AAAAInNrLWVjZHNhLXNoYTItbmlzdHAyNTZAb3BlbnNzaC5jb20AAAAIbmlzdHAyNTYAAABBBAWvA3RpXpMAqruUbB+eVgvvHCzhs5R9khFRza3YSLeFiIqOxVVgyhzW/BnCSD9t/5JrqRdJIGQLnkQU9m4REhUAAAAEc3NoOg== tazjin@tverskoy"
+      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIM1fGWz/gsq+ZeZXjvUrV+pBlanw1c3zJ9kLTax9FWQy tazjin@tverskoy"
+    ];
+  };
+
+  security.sudo.wheelNeedsPassword = false;
+
+  services.depot.quassel = {
+    enable = true;
+    acmeHost = "polyanka.tazj.in";
+    bindAddresses = [
+      "0.0.0.0"
+    ];
+  };
+
+  # List packages installed in system profile. To search, run:
+  # $ nix search wget
+  environment.systemPackages = with pkgs; [
+    curl
+    htop
+    jq
+    nmap
+    bat
+    emacs-nox
+    nano
+    wget
+  ];
+
+  programs.mtr.enable = true;
+  services.openssh.enable = true;
+
+  system.stateVersion = "20.09";
+}