servers/mermet/nginx.nix

   1 {pkgs, lib, config, system, ...}:
   2 let
   3   inherit (builtins) readFile;
   4   inherit (builtins.extraBuiltins) pass;
   5   inherit (lib) types;
   6   inherit (pkgs.lib) loadFile;
   7   inherit (config) networking;
   8   inherit (config.services) nginx;
   9   domainDir = dom: lib.concatStringsSep "/" (lib.reverseList (lib.splitString "." dom));
  10 in
  11 {
  12 imports = [
  13   nginx/gitweb.nix
  14   nginx/www.nix
  15 ];
  16 options = {
  17   services.nginx = {
  18     x509Dir = lib.mkOption {
  19       type    = types.str;
  20       default = "/var/lib/nginx/x509";
  21     };
  22     webDir = lib.mkOption {
  23       type    = types.str;
  24       default = "/var/www";
  25     };
  26     logDir = lib.mkOption {
  27       type    = types.str;
  28       default = "/var/log/nginx";
  29     };
  30   };
  31 };
  32 config = {
  33   systemd.services.nginx = {
  34     preStart = lib.mkBefore ''
  35       install -D -d -o ${nginx.user} -g ${nginx.group} -m 0700 \
  36        ${nginx.x509Dir} \
  37        ${nginx.webDir} \
  38        ${nginx.logDir}
  39     '';
  40     after = [
  41       "${networking.domain}.key.pem-key.service"
  42     ];
  43   };
  44   services.nginx = {
  45     enable = true;
  46     stateDir = "/dev/shm/nginx";
  47     eventsConfig = ''
  48       multi_accept on;
  49       use epoll;
  50       worker_connections 1024;
  51     '';
  52     clientMaxBodySize = "20m";
  53     recommendedProxySettings = true;
  54     recommendedTlsSettings = true;
  55     serverTokens = false;
  56     # Only allow PFS-enabled ciphers with AES256
  57     sslCiphers = "AES256+EECDH:AES256+EDH:!aNULL";
  58     #sslCiphers = "HIGH:!ADH:!MD5:!CAMELLIA:!SEED:!3DES:!DES:!RC4:!eNULL";
  59     sslDhparam = ../../../sec/openssl/dh.pem;
  60     #sslCiphers = "EECDH+aRSA+AESGCM:EDH+aRSA:EECDH+aRSA:+AES256:+AES128:+SHA1:!CAMELLIA:!SEED:!3DES:!DES:!RC4:!eNULL;";
  61     #sslProtocols = "TLSv1.2";
  62     commonHttpConfig = ''
  63       log_format main '$remote_addr - $remote_user [$time_local] "$request" '
  64                       '$status $body_bytes_sent "$http_referer" '
  65                       '"$http_user_agent" "$http_x_forwarded_for"';
  66       #charset UTF-8;
  67       '' +
  68       lib.concatStringsSep "\n" (lib.attrValues {
  69         default = ''
  70           default_type application/octet-stream;
  71           root ${nginx.webDir};
  72         '';
  73         security = ''
  74           #error_page 403 = 404;
  75
  76           # Add HSTS header with preloading to HTTPS requests.
  77           # Adding this header to HTTP requests is discouraged
  78           #map $scheme $hsts_header {
  79           #    https   "max-age=31536000; includeSubdomains; preload";
  80           #}
  81           #add_header Strict-Transport-Security $hsts_header;
  82
  83           # Enable CSP for your services.
  84           #add_header Content-Security-Policy "script-src 'self'; object-src 'none'; base-uri 'none';" always;
  85
  86           # Minimize information leaked to other domains
  87           add_header 'Referrer-Policy' 'origin-when-cross-origin';
  88
  89           # Disable embedding as a frame
  90           add_header X-Frame-Options DENY;
  91
  92           # Prevent injection of code in other mime types (XSS Attacks)
  93           add_header X-Content-Type-Options nosniff;
  94
  95           # Enable XSS protection of the browser.
  96           # May be unnecessary when CSP is configured properly (see above)
  97           add_header X-XSS-Protection "1; mode=block";
  98
  99           # This might create errors
 100           proxy_cookie_path / "/; secure; HttpOnly; SameSite=strict";
 101         '';
 102         log = ''
 103           access_log ${nginx.logDir}/access.log main buffer=32k;
 104           error_log  ${nginx.logDir}/error.log warn;
 105           open_log_file_cache max=1000 inactive=20s min_uses=2 valid=1m;
 106         '';
 107         proxy = ''
 108           proxy_cache_use_stale updating;
 109           proxy_temp_path ${nginx.stateDir}/proxy_temp 1 2;
 110         '';
 111         fastcgi = ''
 112           # DOC: http://wiki.nginx.org/HttpFastcgiModule
 113           fastcgi_buffer_size 128k;
 114           fastcgi_buffers 256 4k;
 115           fastcgi_busy_buffers_size 256k;
 116           fastcgi_cache_key "$request_method $scheme://$http_host$request_uri";
 117           fastcgi_cache_path ${nginx.stateDir}/fastcgi_cache
 118                              inactive=10m
 119                              keys_zone=microcache:2M
 120                              levels=1:2
 121                              loader_files=100000
 122                              loader_sleep=1
 123                              loader_threshold=2592000000
 124                              max_size=64M;
 125           fastcgi_connect_timeout 60;
 126           fastcgi_ignore_client_abort off;
 127           fastcgi_intercept_errors on;
 128           fastcgi_max_temp_file_size 2M;
 129           #fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
 130           fastcgi_param SCRIPT_FILENAME $request_filename;
 131           fastcgi_temp_path ${nginx.stateDir}/fastcgi_temp 1 2;
 132         '';
 133         connection = ''
 134           sendfile on;
 135           # If the client stops reading data,
 136           # free up the stale client connection after this much time.
 137           send_timeout 60;
 138           # Causes nginx to attempt to send its HTTP response head
 139           # in one packet, instead of using partial frames.
 140           # This is useful for prepending headers before calling sendfile,
 141           # or for throughput optimization.
 142           tcp_nopush on;
 143           # Don't buffer data-sends (disable Nagle algorithm).
 144           # Good for sending frequent small bursts of data in real time.
 145           tcp_nodelay on;
 146           keepalive_timeout 20;
 147           reset_timedout_connection on;
 148           server_names_hash_bucket_size 128;
 149           types_hash_max_size 2048;
 150         '';
 151         map = ''
 152           # User agents that are to be blocked.
 153           #map $http_user_agent $bad_bot {
 154           #  default 0;
 155           #  libwww-perl 1;
 156           #  ~(?i)(httrack|htmlparser|libwww) 1;
 157           #}
 158           # Referrers that are to be blocked.
 159           #map $http_referer $bad_referer {
 160           #  default 0;
 161           #  ~(?i)(babes|casino|click|diamond|forsale|girl|jewelry|love|nudit|organic|poker|porn|poweroversoftware|replica|sex|teen|webcam|zippo) 1;
 162           #}
 163           #geo $not_local {
 164           #  default 1;
 165           #  127.0.0.1 0;
 166           #}
 167         '';
 168         gzip = ''
 169           gzip on;
 170           gzip_buffers 16 8k;
 171           gzip_comp_level 6;
 172           gzip_disable "MSIE [1-6]\.";
 173           gzip_http_version 1.1;
 174           gzip_min_length 1024;
 175           gzip_proxied any;
 176           gzip_static on;
 177           gzip_vary on;
 178           gzip_types application/atom+xml
 179                      application/javascript
 180                      application/json
 181                      application/rss+xml
 182                      application/vnd.ms-fontobject
 183                      application/x-font-ttf
 184                      application/x-javascript
 185                      application/xml
 186                      application/xml+rss
 187                      font/opentype
 188                      font/truetype
 189                      image/svg+xml
 190                      text/css
 191                      text/javascript
 192                      text/plain
 193                      text/x-component
 194                      text/xml;
 195         '';
 196         cache = ''
 197           client_body_buffer_size 4K;
 198             # getconf PAGESIZE
 199             # 4096
 200           client_body_temp_path ${nginx.stateDir}/client_body_temp 1 2;
 201           client_body_timeout 60;
 202           client_header_buffer_size 1k;
 203           client_header_timeout 60;
 204           large_client_header_buffers 4 8k;
 205
 206           open_file_cache max=200000 inactive=20s;
 207           open_file_cache_errors on;
 208           open_file_cache_min_uses 2;
 209           open_file_cache_valid 30s;
 210         '';
 211       });
 212     appendConfig = ''
 213       worker_processes 4;
 214     '';
 215     virtualHosts."_" = {
 216       forceSSL = false;
 217       # Convoluted way to load the certificate in the store and using ${networking.domainBase} to find it.
 218       # NOTE: no ssl_stapling while the certificate remains self-signed.
 219       sslCertificate = loadFile (../../../sec + "/openssl/${networking.domain}/cert.self-signed.pem");
 220       sslCertificateKey = "/run/keys/${networking.domain}.key.pem";
 221     };
 222   };
 223 };
 224 }