modules.system.networking: fix dns

This reverts commit e9639a44c8.

devices/srv1/node1/default.nix

@@ -17,16 +17,12 @@ inputs:
         nix.remote.slave.enable = true;
       };
       services.beesd.instances.root = { device = "/"; hashTableSizeMB = 256; threads = 4; };
-      packages =
-      {
-        vasp = null;
-        packages._packages = [(inputs.pkgs.runCommand "master-system" {}
-        ''
-          mkdir -p $out/share
-          ln -s ${inputs.topInputs.self.nixosConfigurations.srv1-node0.config.system.build.toplevel} \
-            $out/share/master-system
-        '')];
-      };
+      packages.packages._packages = [(inputs.pkgs.runCommand "master-system" {}
+      ''
+        mkdir -p $out/share
+        ln -s ${inputs.topInputs.self.nixosConfigurations.srv1-node0.config.system.build.toplevel} \
+          $out/share/master-system
+      '')];
     };
     specialisation =
     {

devices/xmupc1/README.md

@@ -5,7 +5,7 @@
 * 显卡：
   * 4090：24 G 显存。
   * 3090：24 G 显存。
-  * 2080Ti: 12 G 显存。
+  * P5000: 16 G 显存。
 * 硬盘：2 T。
 
 # 队列系统（SLURM）

devices/xmupc1/default.nix

@@ -80,7 +80,7 @@ inputs:
             name = "xmupc1"; address = "127.0.0.1";
             cpu = { cores = 16; threads = 2; };
             memoryMB = 94208;
-            gpus = { "2080_ti" = 1; "3090" = 1; "4090" = 1; };
+            gpus = { "p5000" = 1; "3090" = 1; "4090" = 1; };
           };
           partitions.default = [ "xmupc1" ];
         };

modules/system/networking.nix

@@ -95,6 +95,7 @@ inputs:
                 routes = inputs.lib.mkIf (network.value.gateway != null)
                   [{ Gateway = network.value.gateway; Destination = "0.0.0.0/0"; }];
                 linkConfig.RequiredForOnline = "routable";
+                dns = inputs.lib.mkIf (network.value.dns != null) [ network.value.dns ];
               };
             })
             (inputs.localLib.attrsToList networking.networkd.static))