servers/mermet/rspamd.nix

   1 { pkgs, lib, config, ... }:
   2 let inherit (builtins) attrNames listToAttrs readFile;
   3     inherit (builtins.extraBuiltins) pass pass-chomp;
   4     inherit (lib) types;
   5     inherit (pkgs.lib) unlinesAttrs;
   6     inherit (config) networking;
   7     inherit (config.services) postfix rspamd dovecot2;
   8 in
   9 {
  10   systemd.services.rspamd.after =
  11     lib.mapAttrsToList
  12     (domain: dom: "dkim.${domain}.${dom.selector}.key-key.service")
  13     rspamd.dkim.domains;
  14   deployment.keys = lib.mapAttrs'
  15     (domain: dom:
  16       lib.nameValuePair "dkim.${domain}.${dom.selector}.key" {
  17         text  = pass dom.selectors."${dom.selector}".key;
  18         user  = rspamd.user;
  19         group = "root";
  20         destDir = "/run/keys/";
  21         permissions = "0400"; # WARNING: not enforced when deployment.storeKeysOnMachine = true
  22       })
  23     rspamd.dkim.domains;
  24   users.users."${rspamd.user}".extraGroups = [ "keys" ];
  25   services.rspamd = {
  26     enable = true;
  27     debug = false;
  28     postfix = {
  29       enable = postfix.enable;
  30     };
  31     dkim = {
  32       enable = true;
  33       domains = {
  34         "${networking.hostName}" = {
  35           selector = "20200101";
  36           selectors = {
  37             "20200101" = {
  38               key = "dkim/${networking.domain}/20200101.key";
  39               dns = readFile (rspamd/dkim + "/${networking.domain}/20200101.dns");
  40             };
  41           };
  42         };
  43         "${networking.domain}" = {
  44           selector = "20200101";
  45           selectors = {
  46             "20200101" = {
  47               key = "dkim/${networking.domain}/20200101.key";
  48               dns = readFile (rspamd/dkim + "/${networking.domain}/20200101.dns");
  49             };
  50           };
  51         };
  52       };
  53     };
  54     locals =
  55       let selector_map_file =
  56         pkgs.writeText "dkim_selectors.map"
  57           (unlinesAttrs
  58             (domain: dom: "${domain} ${dom.selector}")
  59             rspamd.dkim.domains);
  60       in {
  61       "dkim_signing.conf".text = ''
  62         selector_map = ${selector_map_file};
  63         path = "/run/keys/dkim.$domain.$selector.key";
  64         allow_username_mismatch = true;
  65       '';
  66       "arc.conf".text = ''
  67         selector_map = ${selector_map_file};
  68         path = "/run/keys/dkim.$domain.$selector.key";
  69         allow_username_mismatch = true;
  70       '';
  71       /*
  72       "logging.conf" = ''
  73         debug_modules = [“dkim_signing”]
  74       '';
  75       */
  76     };
  77     overrides = {
  78       "milter_headers.conf".text = ''
  79         extended_spam_headers = true;
  80       '';
  81       "actions.conf".text = ''
  82         reject     = 15; # Reject when reaching this score
  83         add_header =  6; # Add header when reaching this score
  84         greylist   =  4; # Apply greylisting when reaching this score (will emit `soft reject action`)
  85       '';
  86     };
  87     workers = {
  88       learner = {
  89         # Like controller but without a password, only the bindSockets' permissions
  90         type = "controller";
  91         includes = [ "$CONFDIR/worker-controller.inc" ];
  92         bindSockets = [
  93           { socket = "/run/rspamd/learner.sock";
  94             mode = "0660";
  95             owner = "${rspamd.user}";
  96             group = "${dovecot2.group}";
  97           }
  98         ];
  99         extraConfig = ''
 100         '';
 101       };
 102       controller = {
 103         includes = [ "$CONFDIR/worker-controller.inc" ];
 104         bindSockets = [
 105           "127.0.0.1:11334"
 106         ];
 107         extraConfig = ''
 108           #count = 1;
 109           #static_dir = "''${WWWDIR}";
 110           # USE: rspamadm pw
 111           password = "${pass-chomp "servers/mermet/rspamd/controller/hashedPassword"}";
 112         '';
 113       };
 114     };
 115   };
 116   /*
 117   services.postfix.extraConfig = ''
 118     smtpd_milters = unix:/run/rspamd.sock
 119     milter_default_action = accept
 120   '';
 121   # Allow users to run 'rspamc' and 'rspamadm'.
 122   environment.systemPackages = [ pkgs.rspamd ];
 123   */
 124
 125   /*
 126   services.redis = {
 127     enable = true;
 128   };
 129   */
 130 }