Refactor public ip handling

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

hosts/jupiter-vps/configs/wireguard/default.nix

@@ -2,7 +2,6 @@
 let
   jupiterConfig = inputs.self.nixosConfigurations.jupiter.config;
   wireguardPort = 51821;
-  jupiterPublicIPv4 = "51.89.210.124";
 in
 {
   boot.kernel.sysctl = {
@@ -29,7 +28,7 @@ in
           name = "jupiter";
           allowedIPs = [
             "10.0.0.2/32"
-            "${jupiterPublicIPv4}/32"
+            "${jupiterConfig.networking.publicIPv4}/32"
           ];
           publicKey = builtins.readFile "${inputs.secrets}/hosts/jupiter/wireguard_key.pub";
         }

hosts/jupiter-vps/default.nix

@@ -33,7 +33,10 @@
     ./configs/wireguard
   ];
 
-  networking.hostName = "jupiter-vps";
+  networking = {
+    hostName = "jupiter-vps";
+    publicIPv4 = "51.75.170.190";
+  };
 
   environment.impermanence.enable = lib.mkForce false;