feat: define vnstat issues

hosts/lily/default.nix

@@ -11,6 +11,24 @@ let
   # internalIPs = lib.mapAttrsToList (
   #   _: val: lib.strings.removeSuffix ".1" val.cidr + ".0/24"
   # ) networks;
+  commonDhcpOptions = [
+    {
+      name = "domain-name-servers";
+      data = "9.9.9.9";
+    }
+    {
+      name = "time-servers";
+      data = "172.16.1.1";
+    }
+    {
+      name = "domain-name";
+      data = "beeping.local";
+    }
+    {
+      name = "domain-search";
+      data = "beeping.local";
+    }
+  ];
 in
 {
   imports = [
@@ -51,7 +69,26 @@ in
     };
   };
 
+  # label network interfaces
+  services.udev.extraRules = ''
+    SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:25:90:47:67:6e", ATTR{type}=="1", NAME="wan0"
+    SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:25:90:47:67:6f", ATTR{type}=="1", NAME="lan0"
+    SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:25:90:63:0f:80", ATTR{type}=="1", NAME="lan1"
+    SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:25:90:63:0f:81", ATTR{type}=="1", NAME="lan2"
+  '';
+
   networking = {
+    nameservers = [
+      "9.9.9.9"
+      "149.112.112.112"
+    ];
+    interfaces = {
+      wan0.useDHCP = true;
+      lan0.useDHCP = false;
+      lan1.useDHCP = false;
+      lan2.useDHCP = false;
+    };
+
     firewall = {
       enable = false;
       allowPing = true;
@@ -101,56 +138,108 @@ in
   };
 
   services = {
-    udev.extraRules = ''
-      SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:25:90:47:67:6e", ATTR{type}=="1", NAME="wan0"
-      SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:25:90:47:67:6f", ATTR{type}=="1", NAME="lan0"
-      SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:25:90:63:0f:80", ATTR{type}=="1", NAME="lan1"
-      SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:25:90:63:0f:81", ATTR{type}=="1", NAME="lan2"
-    '';
-    dhcpd4 = {
+    kea.dhcp4 = {
       enable = true;
-      interfaces = [
-        "lan"
-        "servers"
-        "management"
-        "iot"
-        "guest"
-      ];
-      extraConfig = ''
-        option domain-name-servers 9.9.9.9, 149.112.112.112;
-        option subnet-mask 255.255.255.0;
+      settings = {
+        lease-database = {
+          name = "/var/lib/kea/dhcp4.leases";
+          persist = true;
+          type = "memfile";
+        };
+        interfaces-config = {
+          interfaces = [
+            "lan"
+            "servers"
+            "management"
+            "iot"
+            "guest"
+          ];
+        };
+        option-data = [
+          {
+            name = "domain-name-servers";
+            data = "";
+            always-send = true;
+          }
+          {
+            name = "routers";
+            data = "";
+          }
+          {
+            name = "domain-name";
+            data = "beeping.local";
+          }
+        ];
 
-        subnet 172.16.1.0 netmask 255.255.255.0 {
-          option broadcast-address 172.16.1.255;
-          option routers 172.16.1.1;
-          interface lan;
-          range 172.16.1.50 172.16.1.254;
-        }
-        subnet 172.16.10.0 netmask 255.255.255.0 {
-          option broadcast-address 172.16.10.255;
-          option routers 172.16.10.1;
-          interface servers;
-          range 172.16.10.50 172.16.10.254;
-        }
-        subnet 172.16.21.0 netmask 255.255.255.0 {
-          option broadcast-address 172.16.21.255;
-          option routers 172.16.21.1;
-          interface management;
-          range 172.16.21.50 172.16.21.254;
-        }
-        subnet 172.16.100.0 netmask 255.255.255.0 {
-          option broadcast-address 172.16.100.255;
-          option routers 172.16.100.1;
-          interface iot;
-          range 172.16.100.50 172.16.100.254;
-        }
-        subnet 172.16.110.0 netmask 255.255.255.0 {
-          option broadcast-address 172.16.110.255;
-          option routers 172.16.110.1;
-          interface guest;
-          range 172.16.110.50 172.16.110.254;
-        }
-      '';
+        rebind-timer = 2000;
+        renew-timer = 1000;
+        valid-lifetime = 43200;
+
+        # option domain-name-servers 9.9.9.9, 149.112.112.112;
+        # TODO: these should be dynamically generated based on ${config.networking.vlans}
+        subnet4 = [
+          ({
+            id = 1;
+            interface = "lan";
+            subnet = "172.16.1.0/24";
+            pools = [ { pool = "172.16.1.50 - 172.16.1.254"; } ];
+            option-data = [
+              {
+                name = "routers";
+                data = "172.16.1.1";
+              }
+            ] ++ commonDhcpOptions;
+          })
+          ({
+            id = 10;
+            interface = "servers";
+            subnet = "172.16.10.0/24";
+            pools = [ { pool = "172.16.10.50 - 172.16.10.254"; } ];
+            option-data = [
+              {
+                name = "routers";
+                data = "172.16.10.1";
+              }
+            ] ++ commonDhcpOptions;
+          })
+          ({
+            id = 21;
+            interface = "management";
+            subnet = "172.16.21.0/24";
+            pools = [ { pool = "172.16.21.50 - 172.16.21.254"; } ];
+            option-data = [
+              {
+                name = "routers";
+                data = "172.16.21.1";
+              }
+            ] ++ commonDhcpOptions;
+          })
+          ({
+            id = 100;
+            interface = "iot";
+            subnet = "172.16.100.0/24";
+            pools = [ { pool = "172.16.100.50 - 172.16.100.254"; } ];
+            option-data = [
+              {
+                name = "routers";
+                data = "172.16.100.1";
+              }
+            ] ++ commonDhcpOptions;
+          })
+          ({
+            id = 110;
+            interface = "guest";
+            subnet = "172.16.110.0/24";
+            pools = [ { pool = "172.16.110.50 - 172.16.110.254"; } ];
+            option-data = [
+              {
+                name = "routers";
+                data = "172.16.110.1";
+              }
+            ] ++ commonDhcpOptions;
+          })
+        ];
+      };
     };
     avahi = {
       enable = true;

hosts/lily/dns.nix

@@ -2,7 +2,7 @@
 {
   services = {
     dnsmasq = {
-      enable = true;
+      enable = false; # try some other options first
       settings = {
         cache-size = 10000; # Specifies the size of the DNS query cache. It will store up to n cached DNS queries to improve response times for frequently accessed domains.
         server = [

modules/core/security.nix

@@ -36,7 +36,7 @@
             --replace "incorrect password attempts" "nuu silly, try again ~ >.< ~" \
             --replace "incorrect password attempt" "nuu silly, try again ~ >.< ~" \
             --replace "authentication failure" "oepsie woepsie alles is stukkie wukkie :3" \
-            --replace "a password is required" "no password for me? 🥺\n"
+            --replace "a password is required" "no password? 😭\n"
           '';
         configureFlags =
           (builtins.filter (x: !(lib.strings.hasPrefix x "--with-passprompt=")) old.configureFlags)

modules/services/unifi.nix

@@ -3,7 +3,7 @@
 {
   services.unifi = {
     enable = true;
-    unifiPackage = pkgs.unifi8;
+    unifiPackage = pkgs.unifi;
     mongodbPackage = pkgs.mongodb-7_0;
   };
   # services.nginx = {

modules/services/vnstat.nix

@@ -0,0 +1,122 @@
+{
+  lib,
+  config,
+  pkgs,
+  ...
+}:
+
+let
+  vnstatUser = "vnstatd";
+  vnstatImageDir = "/var/www/vnstat";
+  vnstatDashboardFile = pkgs.writeText "dashboard.html" ''
+    <!DOCTYPE html>
+    <html lang="en">
+      <head>
+        <title>vnStat dashboard</title>
+        <meta charset="UTF-8" />
+        <meta name="viewport" content="width=device-width,initial-scale=1" />
+        <noscript>
+          <meta http-equiv="refresh" content="60" />
+        </noscript>
+        <style>
+        body { max-width: 1341px; margin: auto; padding: 5px; }
+        div { column-count: 2; column-width: 668px; column-gap: 5px; text-align: center }
+        img { max-width: 100%; min-width: 320px; }
+        </style>
+      </head>
+      <body>
+        <div>
+          <img src="vnstat-s.png"> <img src="vnstat-5g.png"> <img src="vnstat-hg.png">
+          <img src="vnstat-h.png"> <img src="vnstat-d.png"> <img src="vnstat-t.png">
+          <img src="vnstat-m.png"> <img src="vnstat-y.png">
+        </div>
+        <script>
+          setInterval(function() {
+              for (let image of document.images) {
+                image.src = new URL(image.src).pathname + "?t=" + new Date().getTime();
+              }
+          }, 60000);
+        </script>
+      </body>
+    </html>'';
+
+  serverName = "vnstat.abnv.me";
+  serviceConfig = config.services."${serverName}";
+  options = {
+    enable = lib.mkEnableOption "${serverName} service";
+  };
+in
+{
+  options.services.${serverName} = options;
+  config = lib.mkIf serviceConfig.enable {
+    services.vnstat.enable = true;
+
+    systemd = {
+      tmpfiles.rules = [
+        "d ${vnstatImageDir} 1775 ${vnstatUser} ${vnstatUser}"
+        "L+ ${vnstatImageDir}/index.html - - - - ${vnstatDashboardFile}"
+        "Z ${vnstatImageDir} 755 ${vnstatUser} ${vnstatUser}"
+      ];
+
+      services."vnstati-web" = {
+        enable = true;
+        description = "service that generates images for vnstat monitoring";
+        startAt = "*:0/5:00";
+        restartIfChanged = true;
+        after = [ "vnstat.service" ];
+        path = [ pkgs.vnstat ];
+        serviceConfig = {
+          User = vnstatUser;
+          Group = vnstatUser;
+          WorkingDirectory = vnstatImageDir;
+          Type = "oneshot";
+          AmbientCapabilities = [ ];
+          CapabilityBoundingSet = [ ];
+          KeyringMode = "private";
+          LockPersonality = true;
+          NoNewPrivileges = true;
+          PrivateDevices = true;
+          PrivateMounts = true;
+          PrivateTmp = true;
+          ProtectClock = true;
+          ProtectControlGroups = true;
+          ProtectHome = true;
+          ProtectHostname = true;
+          ProtectKernelLogs = true;
+          ProtectKernelModules = true;
+          ProtectKernelTunables = true;
+          ProtectSystem = "full";
+          RemoveIPC = true;
+          RestrictAddressFamilies = [ ];
+          RestrictNamespaces = true;
+          RestrictRealtime = true;
+        };
+        script = ''
+          vnstati --style 1 -L -s -o vnstat-s.png
+          vnstati --style 1 -L --fivegraph 576 218 -o vnstat-5g.png
+          vnstati --style 1 -L -hg -o vnstat-hg.png
+          vnstati --style 1 -L -h 24 -o vnstat-h.png
+          vnstati --style 1 -L -d 30 -o vnstat-d.png
+          vnstati --style 1 -L -t 10 -o vnstat-t.png
+          vnstati --style 1 -L -m 12 -o vnstat-m.png
+          vnstati --style 1 -L -y 5 -o vnstat-y.png
+        '';
+      };
+
+      timers."vnstat-image-gen".timerConfig = {
+        User = vnstatUser;
+        Group = vnstatUser;
+      };
+    };
+
+    services.nginx.virtualHosts.${serverName} = {
+      root = vnstatImageDir;
+      extraConfig = ''
+        add_header Cache-Control 'private no-store, no-cache, must-revalidate, proxy-revalidate, max-age=0';
+        if_modified_since off;
+        expires off;
+        etag off;
+      '';
+    };
+  };
+}