Better Server cfg

modules/nixos/system/network/wireguard/default.nix

@@ -7,7 +7,6 @@
   activePeers = builtins.filter isValidPeer config.syscfg.peers;
 in
 {
-  imports = [ ./forwarding.nix ];
   config = lib.mkIf (config.syscfg.net.wg.enable) {
     networking.wireguard = {
       enable = true;
@@ -19,7 +18,7 @@ in
           listenPort = 1515;
           mtu = 1340;
           peers = 
-            if config.syscfg.net.wg.server.enable then
+            if config.syscfg.server ? wireguard then
               map (p: {
                 name = p.syscfg.hostname;
                 publicKey = p.syscfg.net.wg.pubkey;

modules/server/arion/default.nix

@@ -0,0 +1,13 @@
+{ config, pkgs, lib, ... }:{
+  config = lib.mkIf (config.syscfg.server ? arion) {
+    environment.systemPackages = with pkgs; [ arion ];
+    virtualisation.arion = {
+      backend = "podman-socket";
+      projects = {
+        cloud.settings = import ./docker/cloud.nix { inherit config pkgs lib; };
+        authentik.settings =
+          import ./docker/authentik.nix { inherit config pkgs lib; };
+      };
+    };
+  };
+}

modules/server/default.nix

@@ -1,15 +1,3 @@
-{ config, pkgs, lib, ... }:
+{ config, pkgs, lib, ... }:{
-let
+  imports = [ ./sops ./nftables ./openssh ./arion ];
-in {
-  imports = [ ./sops ];
-  environment.systemPackages = with pkgs; [ arion ];
-  virtualisation.arion = {
-    backend = "podman-socket";
-    projects = {
-      cloud.settings = import ./docker/cloud.nix { inherit config pkgs lib; };
-      authentik.settings =
-        import ./docker/authentik.nix { inherit config pkgs lib; };
-    };
-  };
-
 }

modules/server/nftables/default.nix

@@ -1,8 +1,7 @@
 
 
-{ config, lib, pkgs, ... }:
+{ config, lib, ... }:{
-{
+  config = lib.mkIf (config.syscfg.server.nftables.enable) {
-  config = lib.mkIf (config.syscfg.net.wg.server.enable) {
     boot.kernel.sysctl = {
       "net.ipv4.ip_forward" = 1;
       "net.ipv6.conf.all.forwarding" = 1;
@@ -28,12 +27,12 @@
                 iifname "${srcInt}" tcp dport ${srcPort} counter dnat ip6 to [${dstAddr6}]:${dstPort}
                 iifname "${srcInt}" udp dport ${srcPort} counter dnat ip6 to [${dstAddr6}]:${dstPort}
             ''
-          ) config.syscfg.net.wg.server.forward}
+          ) config.syscfg.server.nftables.ports}
         }
         
         chain postrouting {
           type nat hook postrouting priority srcnat; policy accept;
-          oifname { "wg0", "ens3" } masquerade
+          oifname { ${lib.concatMapStringsSep ", " (iface: ''"${iface}"'') config.syscfg.server.nftables.ifs} } masquerade
         }
       }
     '';

modules/server/openssh/default.nix

@@ -0,0 +1,27 @@
+{ config, lib, ... }: 
+let
+  allUsers = lib.concatMap (peer: if peer.syscfg ? users then peer.syscfg.users else []) config.syscfg.peers;
+  groupedUsers = lib.groupBy (u: u.username) allUsers;
+  allowedUsernames = map (u: u.username) config.syscfg.users;
+  activeUsers = lib.filterAttrs (name: _: lib.elem name allowedUsernames) groupedUsers;
+in {
+  config = lib.mkIf (config.syscfg.server.nftables.enable) {
+    services.openssh = {
+        enable = true;
+        ports = [ 422 ];
+        banner = "";
+        settings = {
+        PasswordAuthentication = false;
+        PermitRootLogin = "no";
+        ClientAliveInterval = 60;
+        ClientAliveCountMax = 3;
+        TCPKeepAlive = true;
+        };
+    };
+    users.users = lib.mapAttrs (name: userList: {
+        openssh.authorizedKeys.keys = lib.unique (
+        lib.concatMap (u: if u ? pubssh then [ u.pubssh ] else []) userList
+        );
+    }) activeUsers;
+    };
+}

modules/shared/syscfg/default.nix

@@ -52,26 +52,6 @@ let
         type = types.str;
         default = "";
       };
-      server = {
-        enable = mkOption {
-          type = types.bool;
-          default = false;
-        };
-        peers = mkOption {
-          type = types.listOf types.str;
-          default = [];
-        };
-        forward = mkOption {
-          type = types.listOf (types.listOf (types.oneOf [ types.str types.int ]));
-          default = [];
-          description = "Forwarding rules: [ [srcInterface dstAddr srcPort dstPort] ... ]";
-          example = [
-            [ "ens3" "10.10.1.2" "IPV6" 22 2222 ]
-            [ "ens3" "10.10.1.2" "IPV6" 80 80 ]
-            [ "ens3" "10.10.1.2" "IPV6" 443 443 ]
-          ];
-        };
-      };
     };
   };
   makeOpt = with lib; {
@@ -114,7 +94,6 @@ let
       type = types.str;
       default = "3306";
     };
-
     configPath = mkOption {
       type = types.str;
       default = "/media/config";
@@ -123,6 +102,38 @@ let
       type = types.str;
       default = "/media/data";
     };
+    arion = mkOption {
+      type = type.bool;
+      default = false;
+    };
+    openssh = mkOption {
+      type = type.bool;
+      default = false;
+    };
+    wireguard = mkOption {
+      type = type.bool;
+      default = false;
+    };
+    nftables = {
+      enable = mkOption {
+        type = type.bool;
+        default = false;
+      };
+      ifs = mkOption {
+        type = types.listOf types.str;
+        default = [ ];
+      };
+      ports = mkOption {
+        type = types.listOf (types.listOf (types.oneOf [ types.str types.int ]));
+        default = [];
+        description = "Forwarding rules: [ [srcInterface dstAddr srcPort dstPort] ... ]";
+        example = [
+          [ "ens3" "10.10.1.2" "IPV6" 22 2222 ]
+          [ "ens3" "10.10.1.2" "IPV6" 80 80 ]
+          [ "ens3" "10.10.1.2" "IPV6" 443 443 ]
+        ];
+      };
+    };
 
   };
 in with lib; {

systems/gateway/cfg.nix

@@ -24,15 +24,20 @@
         ip4 = "10.10.1.1/32";
         ip6 = "fd10:10:10::1/128";
         pubkey = "NFBJvYXZC+bd62jhrKnM7/pugidWhgR6+C5qIiUiq3Q=";
-        server = {
+      };
-            enable = true;
+    };
-            forward = [
+    server = {
+      openssh = true;
+      wireguard = true;
+      nftables = {
+        enable = true;
+        ifs = ["ens3" "wg0" ];
+        ports = [
                 [ "ens3" "10.10.1.2" "fd10:10:10::2" 22 2222 ]      # SSH/GIT
                 [ "ens3" "10.10.1.2" "fd10:10:10::2" 80 80 ]        # HTTP
                 [ "ens3" "10.10.1.2" "fd10:10:10::2" 443 443 ]      # HTTPS
                 [ "ens3" "10.10.1.2" "fd10:10:10::2" 3979 3979 ]    # OTTD
-            ];
+        ];
-        };
       };
     };
   };

systems/gateway/default.nix

@@ -1,27 +1,14 @@
-{ config, lib, inputs, ... }: 
+{ config, lib, inputs, ... }: {
-let
+  imports = [ ./hardware.nix ../../modules/server ];
-  allUsers = lib.concatMap (peer: if peer.syscfg ? users then peer.syscfg.users else []) config.syscfg.peers;
-  groupedUsers = lib.groupBy (u: u.username) allUsers;
-  allowedUsernames = map (u: u.username) config.syscfg.users;
-  activeUsers = lib.filterAttrs (name: _: lib.elem name allowedUsernames) groupedUsers;
-in {
-  imports = [ ./hardware.nix ];
 
-  services.openssh = {
+  system.autoUpgrade = {
     enable = true;
-    ports = [ 422 ];
+    flake = "git+https://git.helcel.net/sora/nixconfig"; 
-    banner = "";
+    flags = [
-    settings = {
+      "--no-write-lock-file"
-      PasswordAuthentication = false;
+    ];
-      PermitRootLogin = "prohibit-password";
+    dates = "04:00";
-      ClientAliveInterval = 60;
+    randomizedDelaySec = "30min";
-      ClientAliveCountMax = 3;
+    allowReboot = false;
-      TCPKeepAlive = true;
-    };
   };
-  users.users = lib.mapAttrs (name: userList: {
-    openssh.authorizedKeys.keys = lib.unique (
-      lib.concatMap (u: if u ? pubssh then [ u.pubssh ] else []) userList
-    );
-  }) activeUsers;
 }