72 lines
2.3 KiB
Nix
72 lines
2.3 KiB
Nix
# SPDX-FileCopyrightText: 2020-2023 Simon Bruder <simon@sbruder.de>
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#
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# SPDX-License-Identifier: AGPL-3.0-or-later
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{ config, lib, ... }:
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let
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cfg = config.sbruder.nginx;
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in
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{
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options.sbruder.nginx = {
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hardening.enable = lib.mkEnableOption "nginx hardening";
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privacy.enable = (lib.mkEnableOption "nginx privacy options") // { default = true; };
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recommended.enable = (lib.mkEnableOption "recommended options") // { default = true; };
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proxyv4 = {
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enable = (lib.mkEnableOption "PROXY protocol for IPv4 connections");
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trustedAddresses = (lib.mkOption {
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type = lib.types.listOf lib.types.str;
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description = "Trusted addresses which can override the source address";
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default = [ "10.0.0.0/8" "127.0.0.0/8" "172.16.0.0/12" "192.168.0.0/16" ];
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});
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};
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};
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config = lib.mkMerge [
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(lib.mkIf cfg.hardening.enable {
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services.nginx.commonHttpConfig = ''
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map $scheme $hsts_header {
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https "max-age=31536000";
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}
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add_header Strict-Transport-Security $hsts_header;
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add_header Referrer-Policy strict-origin;
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add_header X-Content-Type-Options nosniff;
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add_header X-Frame-Options SAMEORIGIN;
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'';
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})
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(lib.mkIf cfg.privacy.enable {
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services.nginx = {
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logError = "stderr crit"; # error (the default severity) logs potential PII (IP addresses) on 404 errors
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commonHttpConfig = ''
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access_log off;
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'';
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};
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})
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(lib.mkIf cfg.recommended.enable {
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services.nginx = {
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recommendedGzipSettings = lib.mkDefault true;
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recommendedOptimisation = lib.mkDefault true;
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recommendedProxySettings = lib.mkDefault true;
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recommendedTlsSettings = lib.mkDefault true;
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};
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})
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(lib.mkIf cfg.proxyv4.enable {
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services.nginx = {
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commonHttpConfig = (lib.concatMapStrings
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(address: ''
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set_real_ip_from ${address};
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'')
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cfg.proxyv4.trustedAddresses) + ''
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real_ip_header proxy_protocol;
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'';
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defaultListen = [
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{ addr = "[::]"; port = 80; ssl = false; }
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{ addr = "0.0.0.0"; port = 80; proxyProtocol = true; ssl = false; }
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{ addr = "[::]"; port = 443; ssl = true; }
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{ addr = "0.0.0.0"; port = 443; proxyProtocol = true; ssl = true; }
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];
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};
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})
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];
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}
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