nixos/profiles/services/nginx.nix

   1 { pkgs, lib, config, host, hostName, inputs, ... }:
   2 let
   3   inherit (lib) types;
   4   inherit (config) networking;
   5   inherit (config.services) nginx;
   6 in
   7 {
   8 options = {
   9   services.nginx = {
  10     configs = lib.mkOption {
  11       type = types.attrsOf types.lines;
  12       default = {};
  13       description = ''
  14         Make some configs available to all virtual hosts.
  15         Useful to workaround the reset of add_header:
  16         https://blog.g3rt.nl/nginx-add_header-pitfall.html
  17       '';
  18       #apply = lib.mapAttrs (name: pkgs.writeText "${name}.conf");
  19     };
  20   };
  21 };
  22 config = {
  23 systemd.tmpfiles.rules = [
  24   "d '/dev/shm/nginx' '750' '${nginx.user}' '${nginx.group}' - -"
  25 ];
  26 systemd.services.nginx = {
  27   requires = [ "systemd-tmpfiles-setup-dev.service" ];
  28   serviceConfig = {
  29     # FIXME: remove all the mkForce in LogsDirectory
  30     # whenever upstream uses a list instead of a string.
  31     LogsDirectory = lib.mkForce ["nginx"];
  32     StateDirectory = ["nginx"];
  33     StateDirectoryMode = "2770";
  34     #BindPaths = ["/dev/shm/nginx:/var/cache/nginx"];
  35   };
  36 };
  37 services.logrotate = {
  38   enable = true;
  39   settings.nginx = {
  40     files = [
  41       "/var/log/nginx/*.log"
  42       "/var/log/nginx/*/*.log"
  43       "/var/log/nginx/*/*/*.log"
  44       "/var/log/nginx/*/*/*/*.log"
  45       "/var/log/nginx/*/*/*/*/*.log"
  46       "/var/log/nginx/*.json"
  47       "/var/log/nginx/*/*.json"
  48       "/var/log/nginx/*/*/*.json"
  49       "/var/log/nginx/*/*/*/*.json"
  50       "/var/log/nginx/*/*/*/*/*.json"
  51     ];
  52     frequency = "weekly";
  53     rotate = 26;
  54     compress = true;
  55     delaycompress = true;
  56     postrotate = ''
  57       [ ! -f /var/run/nginx/nginx.pid ] || kill -USR1 `cat /var/run/nginx/nginx.pid`
  58     '';
  59   };
  60 };
  61 services.nginx = {
  62   eventsConfig = ''
  63     multi_accept on;
  64     use epoll;
  65     worker_connections 1024;
  66   '';
  67   clientMaxBodySize = "20m";
  68   recommendedGzipSettings = true;
  69   recommendedOptimisation = false;
  70   recommendedProxySettings = true;
  71   recommendedTlsSettings = true;
  72   resolver = {
  73     ipv6 = lib.mkDefault (networking.defaultGateway6 != null);
  74   };
  75   serverTokens = false;
  76   # Only allow PFS-enabled ciphers with AES256
  77   #sslCiphers = "AES256+EECDH:AES256+EDH:!aNULL";
  78   #sslCiphers = "HIGH:!ADH:!MD5:!CAMELLIA:!SEED:!3DES:!DES:!RC4:!eNULL";
  79   #sslCiphers = "EECDH+aRSA+AESGCM:EDH+aRSA:EECDH+aRSA:+AES256:+AES128:+SHA1:!CAMELLIA:!SEED:!3DES:!DES:!RC4:!eNULL";
  80   sslDhparam = inputs.self + "/hosts/${hostName}/nginx/dh4096.pem";
  81   sslProtocols = "TLSv1.3 TLSv1.2";
  82   configs = rec {
  83     http_add_headers = ''
  84       # Enable CSP
  85       #add_header Content-Security-Policy "script-src 'self'; object-src 'none'; base-uri 'none';" always;
  86
  87       # Enable XSS protection of the browser.
  88       # May be unnecessary when CSP is configured properly (see above)
  89       add_header X-XSS-Protection "1; mode=block";
  90
  91       # Minimize information leaked to other domains
  92       add_header 'Referrer-Policy' 'origin-when-cross-origin';
  93
  94       # Restrict embedding as a frame
  95       #add_header X-Frame-Options SAMEORIGIN;
  96
  97       # Prevent injection of code in other mime types (XSS Attacks)
  98       add_header X-Content-Type-Options nosniff;
  99     '';
 100     https_add_headers = ''
 101       ${http_add_headers}
 102       # Add HSTS header with preloading to HTTPS requests.
 103       # Adding this header to HTTP requests is discouraged,
 104       # as doing so makes the connection vulnerable to SSL stripping attacks
 105       # DOC: https://blog.qualys.com/securitylabs/2016/03/28/the-importance-of-a-proper-http-strict-transport-security-implementation-on-your-web-server
 106       add_header Strict-Transport-Security $hsts_header;
 107     '';
 108   };
 109   commonHttpConfig = ''
 110     log_format main '$remote_addr - $remote_user [$time_local] "$request" '
 111                     '$status $body_bytes_sent "$http_referer" '
 112                     '"$http_user_agent" "$http_x_forwarded_for"';
 113     log_format json escape=json '{'
 114       '"time_local":"$time_local",'
 115       '"host":"$host",'
 116       '"request":"$request",'
 117       '"status":"$status",'
 118       '"http_referrer":"$http_referer",'
 119       '"remote_addr":"$remote_addr",'
 120       '"remote_user":"$remote_user",'
 121       '"msec":"$msec",'
 122       '"body_bytes_sent":"$body_bytes_sent",'
 123       '"bytes_sent":"$bytes_sent",'
 124       '"http_user_agent":"$http_user_agent",'
 125       '"request_length":"$request_length",'
 126       '"request_method":"$request_method",'
 127       '"request_time":"$request_time",'
 128       '"request_uri":"$request_uri",'
 129       '"server_protocol":"$server_protocol",'
 130       '"ssl_protocol":"$ssl_protocol",'
 131       '"upstream_addr":"$upstream_addr",'
 132       '"upstream_connect_time":"$upstream_connect_time",'
 133       '"upstream_response_time":"$upstream_response_time"'
 134     '}';
 135     charset UTF-8;
 136     types {
 137       text/html html5;
 138       text/plain dump;
 139     }
 140     '' +
 141     lib.concatStringsSep "\n" (lib.attrValues {
 142       default = ''
 143         #default_type application/octet-stream;
 144         root /var/lib/nginx;
 145       '';
 146       security = ''
 147         #error_page 403 = 404;
 148
 149         ${nginx.configs.http_add_headers}
 150
 151         # This might create errors
 152         #proxy_cookie_path / "/; secure; HttpOnly; SameSite=strict";
 153       '';
 154       log = ''
 155         access_log /var/log/nginx/access.json json;
 156         error_log  /var/log/nginx/error.log warn;
 157         open_log_file_cache max=1000 inactive=20s min_uses=2 valid=1m;
 158       '';
 159       proxy = ''
 160         proxy_cache_use_stale updating;
 161         proxy_temp_path /var/cache/nginx/proxy_temp 1 2;
 162       '';
 163       fastcgi = ''
 164         # DOC: http://wiki.nginx.org/HttpFastcgiModule
 165         fastcgi_buffer_size 128k;
 166         fastcgi_buffers 256 4k;
 167         fastcgi_busy_buffers_size 256k;
 168         fastcgi_cache_key "$request_method $scheme://$http_host$request_uri";
 169         fastcgi_connect_timeout 60;
 170         fastcgi_ignore_client_abort off;
 171         fastcgi_intercept_errors on;
 172         fastcgi_max_temp_file_size 2M;
 173         #fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
 174         fastcgi_param SCRIPT_FILENAME $request_filename;
 175         fastcgi_temp_path /var/cache/nginx/fastcgi_temp 1 2;
 176       '';
 177       connection = ''
 178         sendfile on;
 179         # If the client stops reading data,
 180         # free up the stale client connection after this much time.
 181         send_timeout 60;
 182         # Causes nginx to attempt to send its HTTP response head
 183         # in one packet, instead of using partial frames.
 184         # This is useful for prepending headers before calling sendfile,
 185         # or for throughput optimization.
 186         tcp_nopush on;
 187         # Don't buffer data-sends (disable Nagle algorithm).
 188         # Good for sending frequent small bursts of data in real time.
 189         tcp_nodelay on;
 190         keepalive_timeout 20;
 191         reset_timedout_connection on;
 192         server_names_hash_bucket_size 128;
 193       '';
 194       map = ''
 195         map $time_iso8601 $date {
 196           default 'date-not-found';
 197           '~^(?<year>\d{4})-(?<month>\d{2})-(?<day>\d{2})' $year-$month-$day;
 198         }
 199
 200         map $scheme $hsts_header {
 201           https  "max-age=31536000; includeSubdomains; preload";
 202         }
 203
 204         # User agents that are to be blocked.
 205         #map $http_user_agent $bad_bot {
 206         #  default 0;
 207         #  libwww-perl 1;
 208         #  ~(?i)(httrack|htmlparser|libwww) 1;
 209         #}
 210         # Referrers that are to be blocked.
 211         #map $http_referer $bad_referer {
 212         #  default 0;
 213         #  ~(?i)(babes|casino|click|diamond|forsale|girl|jewelry|love|nudit|organic|poker|porn|poweroversoftware|replica|sex|teen|webcam|zippo) 1;
 214         #}
 215         #geo $not_local {
 216         #  default 1;
 217         #  127.0.0.1 0;
 218         #}
 219       '';
 220       cache = ''
 221         client_body_buffer_size 4K;
 222           # getconf PAGESIZE
 223           # 4096
 224         client_body_temp_path /var/cache/nginx/client_body_temp 1 2;
 225         client_body_timeout 60;
 226         client_header_buffer_size 1k;
 227         client_header_timeout 60;
 228         large_client_header_buffers 4 8k;
 229
 230         open_file_cache max=200000 inactive=20s;
 231         open_file_cache_errors on;
 232         open_file_cache_min_uses 2;
 233         open_file_cache_valid 30s;
 234       '';
 235     });
 236   appendConfig = ''
 237     worker_processes ${toString host.CPUs};
 238   '';
 239 };
 240 };
 241 }