share/nebula/sourcephile.fr.nix

   1 { pkgs, lib, config, inputs, hostName, ... }:
   2 let
   3   domain = "sourcephile.fr";
   4   port = toString config.services.nebula.networks.${domain}.listen.port;
   5   iface = config.services.nebula.networks.${domain}.tun.device;
   6   IPv4Prefix = "10.0.0";
   7 in
   8 {
   9   environment.systemPackages = with pkgs; [ nebula ];
  10   systemd.services."nebula@${domain}" = {
  11     stopIfChanged = false;
  12     serviceConfig.LoadCredentialEncrypted = [
  13       "${hostName}.key:${builtins.path { path = inputs.self + "/hosts/${hostName}/nebula/${hostName}.key.cred"; }}"
  14     ];
  15   };
  16   install.target = lib.mkDefault "\"\${NIXOS_TARGET:-root@${config.networking.hostName}.sp}\"";
  17   networking.hosts = {
  18     "${IPv4Prefix}.1" = [ "mermet.sp" ];
  19     "${IPv4Prefix}.2" = [ "losurdo.sp" ];
  20     "${IPv4Prefix}.3" = [ "oignon.sp" ];
  21     "${IPv4Prefix}.4" = [ "patate.sp" ];
  22     "${IPv4Prefix}.5" = [ "carotte.sp" ];
  23     "${IPv4Prefix}.6" = [ "aubergine.sp" ];
  24     "${IPv4Prefix}.7" = [ "courge.sp" ];
  25   };
  26   services.nebula.networks.${domain} = {
  27     enable = true;
  28     ca = lib.mkDefault (./. + "/${domain}/ca.crt");
  29     cert = lib.mkDefault (builtins.path { path = inputs.self + "/share/nebula/${domain}/${hostName}.crt"; });
  30     key = "/run/credentials/nebula@${domain}.service/${hostName}.key";
  31     listen.host = lib.mkDefault "0.0.0.0";
  32     tun.device = lib.mkDefault "neb-sourcephile";
  33     staticHostMap = {
  34       "${IPv4Prefix}.1" = [ "mermet.${domain}:10001" ];
  35       "${IPv4Prefix}.2" = [ "losurdo.${domain}:10002" ];
  36     };
  37     lighthouses = [
  38       "${IPv4Prefix}.1"
  39       "${IPv4Prefix}.2"
  40     ];
  41     relays = [
  42       "${IPv4Prefix}.1"
  43     ];
  44     firewall = {
  45       inbound = [
  46         { port = "any"; proto = "icmp"; groups = [ "sourcephile" "intra" ]; }
  47       ];
  48       outbound = [
  49         { port = "any"; proto = "icmp"; groups = [ "sourcephile" "intra" ]; }
  50       ];
  51     };
  52     settings = {
  53       firewall = {
  54         conntrack = {
  55           tcp_timeout = "12m";
  56           udp_timeout = "3m";
  57           default_timeout = "10m";
  58         };
  59       };
  60       logging = {
  61         level = lib.mkDefault "info";
  62       };
  63       pki.disconnect_invalid = true;
  64       preferred_ranges = [
  65         "192.168.0.0/16"
  66       ];
  67       #cipher = "chachapoly";
  68       /*
  69       stats = {
  70         type = "prometheus";
  71         listen = "127.0.0.1:8080";
  72         path = "/metrics";
  73         namespace = "prometheusns";
  74         subsystem = "nebula";
  75         interval = "10s";
  76         message_metrics = false;
  77         lighthouse_metrics = false;
  78       };
  79       */
  80     };
  81   };
  82   networking.nftables.ruleset = ''
  83     table inet filter {
  84       chain input-lan {
  85         udp dport ${port} counter accept comment "Nebula ${domain}"
  86       }
  87       chain output-lan {
  88         udp sport ${port} counter accept comment "Nebula ${domain}"
  89       }
  90       chain input-net {
  91         udp dport ${port} counter accept comment "Nebula ${domain}"
  92       }
  93       chain output-net {
  94         udp sport ${port} counter accept comment "Nebula ${domain}"
  95       }
  96       chain input-${iface} {
  97         tcp dport ssh counter accept comment "SSH"
  98         udp dport 60000-60100 counter accept comment "Mosh"
  99       }
 100       chain output-${iface} {
 101         tcp dport ssh counter accept comment "SSH"
 102         udp dport 60000-60100 counter accept comment "Mosh"
 103       }
 104       chain input {
 105         iifname ${iface} jump input-${iface}
 106         iifname ${iface} log level warn prefix "input-${iface}: " counter drop
 107       }
 108       chain output {
 109         oifname ${iface} jump output-${iface}
 110         oifname ${iface} log level warn prefix "output-${iface}: " counter drop
 111       }
 112     }
 113   '';
 114   networking.networkmanager.unmanaged = [ iface ];
 115   services.fail2ban.ignoreIP = [
 116     "${IPv4Prefix}.1" # mermet.sp
 117     "${IPv4Prefix}.2" # losurdo.sp
 118     "${IPv4Prefix}.3" # oignon.sp
 119   ];
 120 }