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|
{
inputs.environment.url = "path:../environment";
inputs.secrets-public.url = "path:../../secrets";
inputs.mypackages.url = "path:../../mypackages";
inputs.myuids.url = "path:../../myuids";
inputs.backports.url = "path:../../backports";
outputs = { self, secrets-public, mypackages, backports, environment, myuids }: {
nixosModule = self.nixosModules.system;
nixosModules.system = { pkgs, lib, config, name, nodes, secrets, options, ... }:
{
imports = [
secrets.nixosModules.users-config-common
environment.nixosModule
secrets-public.nixosModule
];
config = {
myEnv = import secrets.environment-file;
networking.hostName = name;
deployment.keys."vars.yml" = {
keyCommand = [ pkgs.stdenv.shell "-c" "cat ${secrets.vars-file}" ];
user = "root";
group = "root";
permissions = "0400";
};
networking.extraHosts = builtins.concatStringsSep "\n"
(lib.mapAttrsToList (n: v: "${lib.head v.config.hostEnv.ips.main.ip4} ${n}") nodes);
users.extraUsers.root.openssh.authorizedKeys.keys = [ config.myEnv.sshd.rootKeys.nix_repository ];
secrets.deleteSecretsVars = true;
secrets.secretsVars = "/run/keys/vars.yml";
services.openssh.enable = true;
nixpkgs.overlays =
builtins.attrValues mypackages.overlays ++
builtins.attrValues backports.overlays ++
[
(self: super: {
postgresql = self.postgresql_pam;
mariadb = self.mariadb_1011.overrideAttrs(old: {
passthru = old.passthru // { mysqlVersion = "5.7"; };
});
}) # don’t put them as generic overlay because of home-manager
];
services.journald.extraConfig = ''
#Should be "warning" but disabled for now, it prevents anything from being stored
MaxLevelStore=info
MaxRetentionSec=1year
'';
users.groups.acme.gid = myuids.lib.gids.acme;
users.users.acme.uid = myuids.lib.uids.acme;
environment.systemPackages = [
pkgs.inetutils
pkgs.htop
pkgs.iftop
pkgs.bind.dnsutils
pkgs.httpie
pkgs.iotop
pkgs.whois
pkgs.ngrep
pkgs.tcpdump
pkgs.wireshark-cli
pkgs.tcpflow
pkgs.mitmproxy
pkgs.nmap
pkgs.p0f
pkgs.socat
pkgs.lsof
pkgs.psmisc
pkgs.openssl
pkgs.wget
pkgs.pv
pkgs.smartmontools
pkgs.git
pkgs.vim
pkgs.rsync
pkgs.strace
pkgs.sqlite
pkgs.unzip
pkgs.jq
pkgs.yq
];
users.mutableUsers = lib.mkDefault false;
systemd.services."vars.yml-key".enable = lib.mkForce false;
systemd.targets.maintenance = {
description = "Maintenance target with only sshd";
after = [ "network-online.target" "sshd.service" ];
requires = [ "network-online.target" "sshd.service" ];
unitConfig.AllowIsolate = "yes";
};
security.acme.acceptTerms = true;
security.acme.preliminarySelfsigned = true;
security.acme.certs = {
"${name}" = {
domain = config.hostEnv.fqdn;
};
};
security.acme.defaults = {
email = "ismael@bouya.org";
webroot = "/var/lib/acme/acme-challenges";
postRun = builtins.concatStringsSep "\n" [
(lib.optionalString config.services.nginx.enable "systemctl reload nginx.service")
];
extraLegoRenewFlags = [ "--reuse-key" ];
keyType = lib.mkDefault "ec256"; # https://github.com/NixOS/nixpkgs/pull/83121
#extraLegoRunFlags = [ "--reuse-key" "--preferred-chain" "ISRG Root X1"];
#extraLegoRenewFlags = ["--preferred-chain" "ISRG Root X1"];
};
services.nginx = {
recommendedTlsSettings = true;
virtualHosts = {
"${config.hostEnv.fqdn}" = {
acmeRoot = config.security.acme.defaults.webroot;
useACMEHost = name;
forceSSL = true;
};
};
};
services.fail2ban.jails.DEFAULT = {
settings.bantime = "12h";
settings.findtime = "12h";
};
services.fail2ban = {
enable = true;
#findtime = "12h";
#bantime = "12h";
bantime-increment = {
enable = true; # Enable increment of bantime after each violation
formula = "ban.Time * math.exp(float(ban.Count+1)*banFactor)/math.exp(1*banFactor)";
#multipliers = "1 2 4 8 16 32 64";
maxtime = "168h"; # Do not ban for more than 1 week
overalljails = true; # Calculate the bantime based on all the violations
};
maxretry = 10;
ignoreIP = let
ip4s = lib.flatten (lib.mapAttrsToList (n: v: (lib.mapAttrsToList (n: v: v.ip4 or []) v.ips)) (config.myEnv.servers));
ip6s = lib.flatten (lib.mapAttrsToList (n: v: (lib.mapAttrsToList (n: v: v.ip6 or []) v.ips)) (config.myEnv.servers));
in
ip4s ++ ip6s;
};
};
};
};
}
|
