servers/mermet/nginx.nix

   1 {pkgs, lib, config, system, ...}:
   2 let inherit (builtins) readFile;
   3     inherit (builtins.extraBuiltins) pass;
   4     inherit (lib) types;
   5     inherit (config) networking;
   6     inherit (config.services) nginx x509;
   7     domainDir = dom: lib.concatStringsSep "/" (lib.reverseList (lib.splitString "." dom));
   8 in
   9 {
  10 imports = [
  11   nginx/gitweb.nix
  12 ];
  13 options = {
  14   services.nginx = {
  15     x509Dir = lib.mkOption {
  16       type    = types.str;
  17       default = "/var/lib/nginx/x509";
  18     };
  19     webDir = lib.mkOption {
  20       type    = types.str;
  21       default = "/var/www";
  22     };
  23     logDir = lib.mkOption {
  24       type    = types.str;
  25       default = "/var/log/nginx";
  26     };
  27   };
  28 };
  29 config = {
  30   systemd.services.nginx.after = [
  31     "${networking.domainBase}.key.pem-key.service"
  32     #"keys.target"
  33   ];
  34   deployment.keys = {
  35     "${networking.domainBase}.key.pem" = {
  36       text        = pass "x509/${networking.domainBase}/key.pem";
  37       user        = nginx.user;
  38       group       = "nobody";
  39       destDir     = "/var/lib/nginx/x509/";
  40       permissions = "0400"; # WARNING: not enforced when deployment.storeKeysOnMachine = true
  41     };
  42   };
  43   systemd.services.nginx = {
  44     preStart = lib.mkBefore ''
  45       install -D -d -o ${nginx.user} -g ${nginx.group} -m 0700 \
  46        ${nginx.x509Dir} \
  47        ${nginx.webDir} \
  48        ${nginx.logDir}
  49     '';
  50   };
  51   services.nginx = {
  52     enable = true;
  53     stateDir = "/dev/shm/nginx";
  54     eventsConfig = ''
  55       multi_accept on;
  56       use epoll;
  57       worker_connections 1024;
  58     '';
  59     clientMaxBodySize = "20m";
  60     recommendedProxySettings = true;
  61     recommendedTlsSettings = true;
  62     serverTokens = false;
  63     sslCiphers = "HIGH:!ADH:!MD5:!CAMELLIA:!SEED:!3DES:!DES:!RC4:!eNULL";
  64     sslDhparam = ../../../sec/openssl/dh.pem;
  65     #sslCiphers = "EECDH+aRSA+AESGCM:EDH+aRSA:EECDH+aRSA:+AES256:+AES128:+SHA1:!CAMELLIA:!SEED:!3DES:!DES:!RC4:!eNULL;";
  66     #sslProtocols = "TLSv1.2";
  67     commonHttpConfig = ''
  68       log_format main '$remote_addr - $remote_user [$time_local] "$request" '
  69                       '$status $body_bytes_sent "$http_referer" '
  70                       '"$http_user_agent" "$http_x_forwarded_for"';
  71       #charset UTF-8;
  72       '' +
  73       lib.concatStringsSep "\n" (lib.attrValues {
  74         default = ''
  75           default_type application/octet-stream;
  76           root ${nginx.webDir};
  77         '';
  78         security = ''
  79           #error_page 403 = 404;
  80         '';
  81         log = ''
  82           access_log ${nginx.logDir}/access.log main buffer=32k;
  83           error_log  ${nginx.logDir}/error.log warn;
  84           open_log_file_cache max=1000 inactive=20s min_uses=2 valid=1m;
  85         '';
  86         proxy = ''
  87           proxy_cache_use_stale updating;
  88           proxy_temp_path ${nginx.stateDir}/proxy_temp 1 2;
  89         '';
  90         fastcgi = ''
  91           # DOC: http://wiki.nginx.org/HttpFastcgiModule
  92           fastcgi_buffer_size 128k;
  93           fastcgi_buffers 256 4k;
  94           fastcgi_busy_buffers_size 256k;
  95           fastcgi_cache_key "$request_method $scheme://$http_host$request_uri";
  96           fastcgi_cache_path ${nginx.stateDir}/fastcgi_cache
  97                              inactive=10m
  98                              keys_zone=microcache:2M
  99                              levels=1:2
 100                              loader_files=100000
 101                              loader_sleep=1
 102                              loader_threshold=2592000000
 103                              max_size=64M;
 104           fastcgi_connect_timeout 60;
 105           fastcgi_ignore_client_abort off;
 106           fastcgi_intercept_errors on;
 107           fastcgi_max_temp_file_size 2M;
 108           #fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
 109           fastcgi_param SCRIPT_FILENAME $request_filename;
 110           fastcgi_temp_path ${nginx.stateDir}/fastcgi_temp 1 2;
 111         '';
 112         connexion = ''
 113           sendfile on;
 114           # If the client stops reading data,
 115           # free up the stale client connection after this much time.
 116           send_timeout 60;
 117           # Causes nginx to attempt to send its HTTP response head
 118           # in one packet, instead of using partial frames.
 119           # This is useful for prepending headers before calling sendfile,
 120           # or for throughput optimization.
 121           tcp_nopush on;
 122           # Don't buffer data-sends (disable Nagle algorithm).
 123           # Good for sending frequent small bursts of data in real time.
 124           tcp_nodelay on;
 125           keepalive_timeout 20;
 126           reset_timedout_connection on;
 127           server_names_hash_bucket_size 128;
 128           types_hash_max_size 2048;
 129         '';
 130         map = ''
 131           # User agents that are to be blocked.
 132           #map $http_user_agent $bad_bot {
 133           #  default 0;
 134           #  libwww-perl 1;
 135           #  ~(?i)(httrack|htmlparser|libwww) 1;
 136           #}
 137           # Referrers that are to be blocked.
 138           #map $http_referer $bad_referer {
 139           #  default 0;
 140           #  ~(?i)(babes|casino|click|diamond|forsale|girl|jewelry|love|nudit|organic|poker|porn|poweroversoftware|replica|sex|teen|webcam|zippo) 1;
 141           #}
 142           #geo $not_local {
 143           #  default 1;
 144           #  127.0.0.1 0;
 145           #}
 146         '';
 147         gzip = ''
 148           gzip on;
 149           gzip_buffers 16 8k;
 150           gzip_comp_level 6;
 151           gzip_disable "MSIE [1-6]\.";
 152           gzip_http_version 1.1;
 153           gzip_min_length 1024;
 154           gzip_proxied any;
 155           gzip_static on;
 156           gzip_vary on;
 157           gzip_types application/atom+xml
 158                      application/javascript
 159                      application/json
 160                      application/rss+xml
 161                      application/vnd.ms-fontobject
 162                      application/x-font-ttf
 163                      application/x-javascript
 164                      application/xml
 165                      application/xml+rss
 166                      font/opentype
 167                      font/truetype
 168                      image/svg+xml
 169                      text/css
 170                      text/javascript
 171                      text/plain
 172                      text/x-component
 173                      text/xml;
 174         '';
 175         cache = ''
 176           client_body_buffer_size 4K;
 177             # getconf PAGESIZE
 178             # 4096
 179           client_body_temp_path ${nginx.stateDir}/client_body_temp 1 2;
 180           client_body_timeout 60;
 181           client_header_buffer_size 1k;
 182           client_header_timeout 60;
 183           large_client_header_buffers 4 8k;
 184
 185           open_file_cache max=200000 inactive=20s;
 186           open_file_cache_errors on;
 187           open_file_cache_min_uses 2;
 188           open_file_cache_valid 30s;
 189         '';
 190       });
 191     appendConfig = ''
 192       worker_processes 2;
 193     '';
 194     virtualHosts."_" = {
 195       forceSSL = true;
 196       # Convoluted way to load the certificate in the store and using ${networking.domainBase} to find it.
 197       # NOTE: no ssl_stapling while the certificate remains self-signed.
 198       sslCertificate =
 199         pkgs.writeText "cert.self-signed.pem"
 200           (readFile ((toPath ../../../sec) + "/openssl/${networking.domainBase}/cert.self-signed.pem"));
 201       sslCertificateKey = "/var/lib/nginx/x509/${networking.domainBase}.key.pem";
 202     };
 203   };
 204 };
 205 }