# Edit this configuration file to define what should be installed on # your system. Help is available in the configuration.nix(5) man page # and in the NixOS manual (accessible by running ‘nixos-help’). { config, pkgs, lib, ... }: let ssh_pubkeys = { motiejus = "ssh-rsa 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"; vno1_root = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIMiWb7yeSeuFCMZWarKJD6ZSxIlpEHbU++MfpOIy/2kh"; }; mountLatest = ({mountpoint, zfs_name}: '' set -euo pipefail ${pkgs.util-linux}/bin/umount ${mountpoint}/.snapshot-latest || : &>/dev/null mkdir -p ${mountpoint}/.snapshot-latest ${pkgs.util-linux}/bin/mount -t zfs $(${pkgs.zfs}/bin/zfs list -H -t snapshot -o name ${zfs_name} | sort | tail -1) ${mountpoint}/.snapshot-latest '' ); umountLatest = ({mountpoint, ...}: ''set -euo pipefail "${pkgs.util-linux}/bin/umount ${mountpoint}/.snapshot-latest" '' ); backup_paths = { var_lib = { mountpoint = "/var/lib"; zfs_name = "rpool/nixos/var/lib"; paths = [ "/var/lib/.snapshot-latest/gitea" "/var/lib/.snapshot-latest/headscale" ]; backup_at = "*-*-* 00:05:00"; }; var_log = { mountpoint = "/var/log"; zfs_name = "rpool/nixos/var/log"; paths = [ "/var/log/.snapshot-latest/caddy/" ]; patterns = [ "access-beta.jakstys.lt.log-*.zst" ]; backup_at = "*-*-* 00:10:00"; }; }; in { imports = [ /etc/nixos/hardware-configuration.nix /etc/nixos/zfs.nix ]; boot.initrd.network = { enable = true; ssh = { enable = true; port = 22; authorizedKeys = builtins.attrValues ssh_pubkeys; hostKeys = [ "/etc/secrets/initrd/ssh_host_ed25519_key" ]; }; }; security.sudo = { wheelNeedsPassword = false; execWheelOnly = true; }; time.timeZone = "UTC"; users = { mutableUsers = false; users = { git = { description = "Gitea Service"; home = "/var/lib/gitea"; useDefaultShell = true; group = "gitea"; isSystemUser = true; }; motiejus = { isNormalUser = true; extraGroups = [ "wheel" ]; openssh.authorizedKeys.keys = [ ssh_pubkeys.motiejus ]; }; }; }; environment.systemPackages = with pkgs; [ jq vim git tmux tree wget lsof file htop mosh #ncdu sqlite ripgrep binutils pciutils headscale nixos-option ]; programs.mtr.enable = true; programs.ssh.knownHosts = { "vno1-oh2.servers.jakst" = { extraHostNames = ["dl.jakstys.lt" "vno1-oh2.jakstys.lt"]; publicKey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAINCJxdEkgQ3U0XxqDibk0g3iV+FG423Yk8hj6VAIOpT5"; }; "hel1-a.servers.jakst" = { extraHostNames = ["hel1-a.jakstys.lt" "git.jakstys.lt" "vpn.jakstys.lt"]; publicKey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIF6Wd2lKrpP2Gqul10obMo2dc1xKaaLv0I4FAnfIaFKu"; }; "hel1-b.servers.jakst" = { extraHostNames = ["hel1-b.jakstys.lt" "jakstys.lt"]; publicKey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAINCJxdEkgQ3U0XxqDibk0g3iV+FG423Yk8hj6VAIOpT5"; }; "mtwork.motiejus.jakst" = { publicKey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIOvNuABV5KXmh6rmS+R50XeJ9/V+Sgpuc1DrlYXW2bQb"; }; "zh2769.rsync.net" = { publicKey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIJtclizeBy1Uo3D86HpgD3LONGVH0CJ0NT+YfZlldAJd"; }; "github.com" = { publicKey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIOMqqnkVzrm0SdG6UOoqKLsabgH5C9okWi0dh2l9GKJl"; }; }; services = { zfs = { autoScrub.enable = true; trim.enable = true; expandOnBoot = "all"; }; sanoid = { enable = true; templates.prod = { hourly = 24; daily = 7; autosnap = true; autoprune = true; }; datasets = lib.mapAttrs' (name: value: { name = value.zfs_name; value = { use_template = ["prod"]; }; }) backup_paths; extraArgs = [ "--verbose" ]; }; borgbackup.jobs = lib.mapAttrs' (name: value: let snapshot = { mountpoint = value.mountpoint; zfs_name = value.zfs_name; }; rwpath = value.mountpoint + "/.snapshot-latest"; in { name = name; value = { doInit = true; repo = "zh2769@zh2769.rsync.net:borg/hel1-a.servers.jakst"; encryption = { mode = "repokey-blake2"; passCommand = "cat /var/src/secrets/borgbackup/password"; }; paths = value.paths; compression = "auto,lzma"; startAt = "*-*-* 00:05:00"; readWritePaths = [ rwpath ]; preHook = mountLatest snapshot; postHook = umountLatest snapshot; } // lib.optionalAttrs (value ? patterns) { patterns = value.patterns; }; }) backup_paths; openssh = { enable = true; passwordAuthentication = false; permitRootLogin = "no"; extraConfig = '' AcceptEnv GIT_PROTOCOL ''; }; locate = { enable = true; locate = pkgs.plocate; localuser = null; }; headscale = { enable = true; serverUrl = "https://vpn.jakstys.lt"; openIdConnect = { issuer = "https://git.jakstys.lt/"; clientId = "1c5fe796-452c-458d-b295-71a9967642fc"; clientSecretFile = "/var/lib/headscale/oidc_client_secret"; # https://github.com/juanfont/headscale/pull/1127 }; settings = { ip_prefixes = [ "100.89.176.0/20" "fd7a:115c:a1e0:59b0::/64" ]; dns_config = { nameservers = [ "1.1.1.1" "8.8.4.4" ]; magic_dns = true; base_domain = "jakst"; }; }; }; tailscale.enable = true; gitea = { enable = true; user = "git"; database.user = "git"; domain = "git.jakstys.lt"; rootUrl = "https://git.jakstys.lt"; httpAddress = "127.0.0.1"; httpPort = 3000; settings = { admin.DISABLE_REGULAR_ORG_CREATION = true; api.ENABLE_SWAGGER = false; mirror.ENABLED = false; other.SHOW_FOOTER_VERSION = false; packages.ENABLED = false; repository.DEFAULT_REPO_UNITS = "repo.code,repo.releases"; repository.DISABLE_MIGRATIONS = true; repository.DISABLE_STARS = true; repository.ENABLE_PUSH_CREATE_USER = true; security.LOGIN_REMEMBER_DAYS = 30; server.ENABLE_GZIP = true; server.LANDING_PAGE = "/motiejus"; service.DISABLE_REGISTRATION = true; service.ENABLE_TIMETRACKING = false; service.ENABLE_USER_HEATMAP = false; service.SHOW_MILESTONES_DASHBOARD_PAGE = false; session.COOKIE_SECURE = true; "service.explore".DISABLE_USERS_PAGE = true; }; }; caddy = { enable = true; email = "motiejus+acme@jakstys.lt"; virtualHosts."vpn.jakstys.lt".extraConfig = '' reverse_proxy 127.0.0.1:8080 ''; virtualHosts."git.jakstys.lt".extraConfig = '' reverse_proxy 127.0.0.1:3000 ''; virtualHosts."beta.jakstys.lt" = { logFormat = '' output file ${config.services.caddy.logDir}/access-beta.jakstys.lt.log { roll_disabled } ''; extraConfig = '' header /_/* Cache-Control "public, max-age=31536000, immutable" root * /var/www/jakstys.lt file_server { precompressed br gzip } @matrixMatch { path /.well-known/matrix/client path /.well-known/matrix/server } header @matrixMatch Content-Type application/json header @matrixMatch Access-Control-Allow-Origin * header @matrixMatch Cache-Control "public, max-age=3600, immutable" handle /.well-known/matrix/client { respond "{\"m.homeserver\": {\"base_url\": \"https://jakstys.lt\"}}" 200 } handle /.well-known/matrix/server { respond "{\"m.server\": \"jakstys.lt:443\"}" 200 } handle /_matrix/* { reverse_proxy http://hel1-b.servers.jakst:8088 } ''; }; }; logrotate = { settings = { "/var/log/caddy/access-beta.jakstys.lt.log" = { rotate = 60; frequency = "daily"; dateext = true; dateyesterday = true; compress = true; compresscmd = "${pkgs.zstd}/bin/zstd"; compressext = ".zst"; compressoptions = "--long -19"; uncompresscmd = "${pkgs.zstd}/bin/unzstd"; postrotate = "${pkgs.systemd}/bin/systemctl restart caddy"; }; }; }; }; # TODO: compress static stuff #${pkgs.findutils}/bin/find ${pkgs.gitea.data} -name '*.css' -exec ${pkgs.brotli}/bin/brotli {} \+ networking = { hostName = "hel1-a"; firewall = { allowedTCPPorts = [ 80 443 ]; allowedUDPPorts = [ 443 ]; checkReversePath = "loose"; # tailscale insists on this }; }; system = { copySystemConfiguration = true; autoUpgrade.enable = true; autoUpgrade = { allowReboot = true; rebootWindow = { lower = "01:00"; upper = "01:30"; }; }; }; #systemd.services."make-snapshot-dirs" = { # requiredBy = #}; # Do not change system.stateVersion = "22.11"; }