Replace telegraf with node exporter

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

hosts/jupiter/configs/wireguard/default.nix

@@ -11,7 +11,7 @@ let
   jupiterPublicIPv4 = "51.89.210.124";
 in
 {
-  sops.secrets."wireguard" = { };
+  sops.secrets.wireguard = { };
 
   networking = {
     firewall.allowedUDPPorts = [ wireguardPort ];
@@ -33,7 +33,7 @@ in
           "${jupiterPublicIPv4}/32"
         ];
         listenPort = wireguardPort;
-        privateKeyFile = config.sops.secrets."wireguard".path;
+        privateKeyFile = config.sops.secrets.wireguard.path;
         table = "wireguard";
 
         postSetup = [ "${ip} rule add from ${jupiterPublicIPv4} table ${table}" ];