networking: Fix VM accidentally not being able to use DHCP

configuration/default.nix

@@ -15,6 +15,7 @@
     (import ../modules)
 
     ./services/conduit.nix
+    ./services/foundryvtt.nix
     ./services/gitea.nix
     ./services/nextcloud.nix
     ./services/webserver.nix
@@ -94,49 +95,7 @@
     };
   };
 
-  systemd.network = {
+  systemd.network.enable = true;
-    enable = true;
-
-    networks = {
-      "10-eth0" = {
-        matchConfig.Name = "eth0";
-
-        networkConfig = {
-          DHCP = "no";
-
-          Address = "178.79.137.55/24";
-          Gateway = "178.79.137.1";
-
-          Domains = "ip.linodeusercontent.com";
-          DNS = [
-            "178.79.182.5"
-            "176.58.107.5"
-            "176.58.116.5"
-            "176.58.121.5"
-            "151.236.220.5"
-            "212.71.252.5"
-            "212.71.253.5"
-            "109.74.192.20"
-            "109.74.193.20"
-            "109.74.194.20"
-            "2a01:7e00::9"
-            "2a01:7e00::3"
-            "2a01:7e00::c"
-            "2a01:7e00::5"
-            "2a01:7e00::6"
-            "2a01:7e00::8"
-            "2a01:7e00::b"
-            "2a01:7e00::4"
-            "2a01:7e00::7"
-            "2a01:7e00::2"
-          ];
-
-          IPv6PrivacyExtensions = "no";
-          IPv6AcceptRA = "yes";
-        };
-      };
-    };
-  };
 
   time.timeZone = "Europe/London";
 

configuration/hardware-specific/linode/default.nix

@@ -19,4 +19,42 @@
       '';
     };
   };
+
+  systemd.network.networks."10-eth0" = {
+    matchConfig.Name = "eth0";
+
+    networkConfig = {
+      DHCP = "no";
+
+      Address = "178.79.137.55/24";
+      Gateway = "178.79.137.1";
+
+      Domains = "ip.linodeusercontent.com";
+      DNS = [
+        "178.79.182.5"
+        "176.58.107.5"
+        "176.58.116.5"
+        "176.58.121.5"
+        "151.236.220.5"
+        "212.71.252.5"
+        "212.71.253.5"
+        "109.74.192.20"
+        "109.74.193.20"
+        "109.74.194.20"
+        "2a01:7e00::9"
+        "2a01:7e00::3"
+        "2a01:7e00::c"
+        "2a01:7e00::5"
+        "2a01:7e00::6"
+        "2a01:7e00::8"
+        "2a01:7e00::b"
+        "2a01:7e00::4"
+        "2a01:7e00::7"
+        "2a01:7e00::2"
+      ];
+
+      IPv6PrivacyExtensions = "no";
+      IPv6AcceptRA = "yes";
+    };
+  };
 }

configuration/hardware-specific/vm.nix

@@ -11,6 +11,11 @@
   # Use the staging secrets
   sops.defaultSopsFile = lib.mkOverride 99 ../../keys/staging.yaml;
 
+  systemd.network.networks."10-eth0" = {
+    matchConfig.Name = "eth0";
+    networkConfig.DHCP = "yes";
+  };
+
   # # Set up VM settings to match real VPS
   # virtualisation.memorySize = 3941;
   # virtualisation.cores = 2;