rename deployment address to target address

This is a prepares having a build server for deployment

nixosModules/clanCore/networking.nix

@@ -1,7 +1,7 @@
 { config, lib, ... }:
 {
   options.clan.networking = {
-    deploymentAddress = lib.mkOption {
+    targetHost = lib.mkOption {
       description = ''
         The target SSH node for deployment.
 
@@ -14,10 +14,27 @@
           - user@machine2.example.com
           - root@example.com:2222&IdentityFile=/path/to/private/key
       '';
+      type = lib.types.str;
+    };
+    buildHost = lib.mkOption {
+      description = ''
+        The build SSH node where nixos-rebuild will be executed.
+
+        If set to null, the targetHost will be used.
+
+        format: user@host:port&SSH_OPTION=SSH_VALUE
+        examples:
+          - machine.example.com
+          - user@machine2.example.com
+          - root@example.com:2222&IdentityFile=/path/to/private/key
+      '';
       type = lib.types.nullOr lib.types.str;
-      default = "root@${config.networking.hostName}";
+      default = null;
     };
   };
+  imports = [
+    (lib.mkRenamedOptionModule [ "clan" "networking" "deploymentAddress" ] [ "clan" "networking" "buildHost" ])
+  ];
   config = {
     # conflicts with systemd-resolved
     networking.useHostResolvConf = false;

nixosModules/clanCore/outputs.nix

@@ -19,10 +19,16 @@
             the location of the deployment.json file
           '';
         };
-        deploymentAddress = lib.mkOption {
+        deployment.buildHost = lib.mkOption {
           type = lib.types.str;
           description = ''
-            the address of the deployment server
+            the hostname of the build host where nixos-rebuild is run
+          '';
+        };
+        deployment.targetHost = lib.mkOption {
+          type = lib.types.str;
+          description = ''
+            the hostname of the target host to be deployed to
           '';
         };
         secretsUploadDirectory = lib.mkOption {
@@ -66,10 +72,10 @@
   config = {
     system.clan.deployment.data = {
       inherit (config.system.clan) secretsModule secretsData;
-      inherit (config.clan.networking) deploymentAddress;
+      inherit (config.clan.networking) targetHost buildHost;
       inherit (config.clanCore) secretsUploadDirectory;
     };
     system.clan.deployment.file = pkgs.writeText "deployment.json" (builtins.toJSON config.system.clan.deployment.data);
-  };
 
+  };
 }