pvv-nixos-config/base.nix

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{ config, lib, pkgs, inputs, values, ... }:
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{
imports = [
./users
./modules/snakeoil-certs.nix
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];
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networking.domain = "pvv.ntnu.no";
networking.useDHCP = false;
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# networking.search = [ "pvv.ntnu.no" "pvv.org" ];
# networking.nameservers = lib.mkDefault [ "129.241.0.200" "129.241.0.201" ];
# networking.tempAddresses = lib.mkDefault "disabled";
# networking.defaultGateway = values.hosts.gateway;
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systemd.network.enable = true;
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services.resolved = {
enable = lib.mkDefault true;
dnssec = "false"; # Supposdly this keeps breaking and the default is to allow downgrades anyways...
};
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time.timeZone = "Europe/Oslo";
i18n.defaultLocale = "en_US.UTF-8";
console = {
font = "Lat2-Terminus16";
keyMap = "no";
};
system.autoUpgrade = {
enable = true;
flake = "git+https://git.pvv.ntnu.no/Drift/pvv-nixos-config.git";
flags = [
"--update-input" "nixpkgs"
"--update-input" "nixpkgs-unstable"
"--no-write-lock-file"
];
};
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nix.gc.automatic = true;
nix.gc.options = "--delete-older-than 2d";
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nix.settings.experimental-features = [ "nix-command" "flakes" ];
/* This makes commandline tools like
** nix run nixpkgs#hello
** and nix-shell -p hello
** use the same channel the system
** was built with
*/
nix.registry = {
nixpkgs.flake = inputs.nixpkgs;
};
nix.nixPath = [ "nixpkgs=${inputs.nixpkgs}" ];
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environment.systemPackages = with pkgs; [
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file
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git
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gnupg
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htop
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nano
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ripgrep
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rsync
screen
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tmux
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vim
wget
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kitty.terminfo
];
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programs.zsh.enable = true;
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users.groups."drift".name = "drift";
# Trusted users on the nix builder machines
users.groups."nix-builder-users".name = "nix-builder-users";
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# Let's not thermal throttle
services.thermald.enable = lib.mkIf (lib.all (x: x) [
(config.nixpkgs.system == "x86_64-linux")
(!config.boot.isContainer or false)
]) true;
services.openssh = {
enable = true;
extraConfig = ''
PubkeyAcceptedAlgorithms=+ssh-rsa
Match Group wheel
PasswordAuthentication no
Match All
'';
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settings.PermitRootLogin = "yes";
};
# nginx return 444 for all nonexistent virtualhosts
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systemd.services.nginx.after = [ "generate-snakeoil-certs.service" ];
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environment.snakeoil-certs = lib.mkIf config.services.nginx.enable {
"/etc/certs/nginx" = {
owner = "nginx";
group = "nginx";
};
};
services.nginx = {
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recommendedTlsSettings = true;
recommendedProxySettings = true;
recommendedOptimisation = true;
recommendedGzipSettings = true;
appendConfig = ''
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pcre_jit on;
worker_processes auto;
worker_rlimit_nofile 100000;
'';
eventsConfig = ''
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worker_connections 2048;
use epoll;
multi_accept on;
'';
};
systemd.services.nginx.serviceConfig = lib.mkIf config.services.nginx.enable {
LimitNOFILE = 65536;
};
services.nginx.virtualHosts."_" = lib.mkIf config.services.nginx.enable {
sslCertificate = "/etc/certs/nginx.crt";
sslCertificateKey = "/etc/certs/nginx.key";
addSSL = true;
extraConfig = "return 444;";
};
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networking.firewall.allowedTCPPorts = lib.mkIf config.services.nginx.enable [ 80 443 ];
security.acme = {
acceptTerms = true;
defaults.email = "drift@pvv.ntnu.no";
};
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# Let's not spam LetsEncrypt in `nixos-rebuild build-vm` mode:
virtualisation.vmVariant = {
security.acme.defaults.server = "https://127.0.0.1";
security.acme.preliminarySelfsigned = true;
users.users.root.initialPassword = "root";
};
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}