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|
{
config,
lib,
pkgs,
this,
...
}:
let
cfg = config.nixfiles.modules.nginx;
in
{
options.nixfiles.modules.nginx = {
enable = lib.mkEnableOption "Nginx";
upstreams = lib.mkOption {
description = "Defines a group of servers to use as proxy target.";
type = lib.types.anything;
default = null;
};
virtualHosts = lib.mkOption {
description = "Attrset of virtual hosts.";
type = lib.types.anything;
default = null;
};
};
config = lib.mkIf cfg.enable {
_module.args.libNginx.config = {
internalOnly = ''
if ($internal != 1) {
return 403;
}
access_log off;
'';
noAICrawlers = ''
if ($crawler != 0) {
return 403;
}
'';
appendHead = text: ''
brotli off;
gzip off;
zstd off;
sub_filter '</head>' '${lib.concatStrings text}</head>';
sub_filter_once on;
'';
noProxyBuffering = ''
proxy_buffering off;
proxy_cache off;
'';
};
services = {
nginx = {
enable = true;
enableReload = true;
package = pkgs.nginxMainline;
statusPage = lib.mkDefault true;
recommendedOptimisation = lib.mkDefault true;
recommendedProxySettings = lib.mkDefault true;
recommendedTlsSettings = lib.mkDefault true;
recommendedBrotliSettings = lib.mkDefault true;
recommendedGzipSettings = lib.mkDefault true;
recommendedZstdSettings = lib.mkDefault true;
resolver.addresses =
let
isIPv6 = addr: builtins.match ".*:.*:.*" addr != null;
escapeIPv6 = addr: if isIPv6 addr then "[${addr}]" else addr;
resolvers =
if config.networking.nameservers != [ ] then
config.networking.nameservers
else
lib.dns.const.quad9.default;
in
map escapeIPv6 resolvers;
commonHttpConfig = lib.concatStrings [
''
access_log syslog:server=unix:/dev/log;
map $http_user_agent $crawler {
default 0;
${
pkgs.fetchurl {
url = "https://raw.githubusercontent.com/ai-robots-txt/ai.robots.txt/5e7c3c432f8bad894363c7289b888328f98963f3/robots.json";
hash = "sha256-purIvhot5wNyQH2fYrwQ8E/WaO/EYdOeqxQM5xLb8zA=";
}
|> builtins.readFile
|> builtins.fromJSON
|> lib.mapAttrsToList (n: _: "'${n}' 1;")
|> lib.concatLines
}
}
''
(lib.optionalString (lib.hasAttr "wireguard" this) (
with config.nixfiles.modules.wireguard;
''
geo $internal {
default 0;
127.0.0.1/32 1;
::1/128 1;
${ipv4.subnet} 1;
${ipv6.subnet} 1;
}
''
))
];
inherit (cfg) upstreams;
virtualHosts =
{
default = {
default = true;
rejectSSL = true;
locations."/".return = "444";
};
}
// (lib.mkIf (cfg.virtualHosts != null) (
lib.mapAttrs (
_: attr:
lib.mkMerge [
attr
(lib.mkIf config.nixfiles.modules.acme.enable {
enableACME = lib.mkDefault true;
forceSSL = lib.mkDefault true;
})
]
) cfg.virtualHosts
));
sslDhparam = config.security.dhparams.params.nginx.path;
};
fail2ban.jails = {
nginx-http-auth.enabled = true;
nginx-botsearch.enabled = true;
};
prometheus.exporters = {
nginx = {
enable = true;
listenAddress = "127.0.0.1";
port = 9113;
};
nginxlog = {
enable = false;
listenAddress = "127.0.0.1";
port = 9117;
group = "nginx";
settings.namespaces = [
{
source.syslog = {
# TODO
};
}
];
};
};
};
systemd.services.alloy.reloadTriggers = [ config.environment.etc."alloy/nginx.alloy".source ];
environment.etc."alloy/nginx.alloy".text = with config.services.prometheus.exporters.nginx; ''
prometheus.scrape "nginx" {
targets = [
{
__address__ = "${listenAddress}:${toString port}",
instance = "${config.networking.hostName}",
},
]
forward_to = [prometheus.relabel.default.receiver]
}
'';
security.dhparams = {
enable = true;
params.nginx = { };
};
networking.firewall.allowedTCPPorts = [
80
443
];
};
}
|
