fix: gracefully handle the config option not existing

machines/agentjones.nix

@@ -72,9 +72,13 @@ in {
       lib.attrsets.mapAttrsToList (key: value:
         # make sure that anything running this firewall dosent count (recursion otherewise)
         # firewall may want to open ports in itself but can deal with that later
+        if builtins.hasAttr "skynet_firewall" value.config
+        then (
           if value.config.skynet_firewall.enable
           then []
           else value.config.skynet_firewall.forward
+        )
+        else []
       ) nodes
     );
   };

machines/vendetta.nix

@@ -46,17 +46,25 @@ in {
       # using the same logic as the firewall, comments there
       external = builtins.concatLists (
         lib.attrsets.mapAttrsToList (key: value:
-          if value.config.deployment.hostname == hostname
+          if builtins.hasAttr "skynet_dns" value.config
+          then (
+            if value.config.deployment.targetHost == hostname
             then own.external
             else value.config.skynet_dns.records.external
+          )
+          else []
         ) nodes
       );
 
       cname = builtins.concatLists (
         lib.attrsets.mapAttrsToList (key: value:
-          if value.config.deployment.hostname == hostname
+          if builtins.hasAttr "skynet_dns" value.config
+          then (
+            if value.config.deployment.targetHost == hostname
             then own.cname
             else value.config.skynet_dns.records.cname
+          )
+          else []
         ) nodes
       );
     };