added vyosbld options

flake.nix

@@ -25,9 +25,70 @@
         pname = "kyouma-www";
         version = self.shortRev or (toString self.lastModifiedDate); 
         src = ./.;
-        buildPhase = ''mkdir src/assets/media; ln -s ${packages.vid}/* src/assets/media/'';
+        buildPhase = '''';
         installPhase = ''cp -r src $out'';
       };
       packages.default = packages.kyouma-www;
+      nixosModules.default = 
+        { config, options, pkgs, ... }: 
+        let 
+          cfg = config.services.vyosBld;
+          buildFlags = (attrsets.mapAttrsToList (flag: opt: "--" + flag + " " + opt) cfg.buildFlags);
+        in {
+          options.services.vyosBld = with lib; {
+            enable = mkEnableOption "VyOS automatic build";
+
+            output = mkOption {
+              type = types.str;
+              default = null;
+              description = "Where the iso should be copied to";
+            };
+
+            keep = mkOption {
+              type = types.number;
+              default = 5;
+              description = "Amount of versions to keep";
+            };
+
+            buildFreq = mkOption {
+              type = types.str;
+              default = "*-*-* 4:20:00";
+              description = "How often a new Image should be build. See {manpage}`systemd.timer(5)`";
+            };
+
+            flavor = mkOption {
+              type = types.str;
+              default = "iso";
+              description = "See VyOS build docs";
+            };
+
+            buildFlags = mkOption {
+              type = types.set;
+              default = "";
+              description = "Build Flags see https://docs.vyos.io/en/latest/contributing/build-vyos.html
+                example:
+                { build-by = 'mail@server.tld' }";
+            };
+          };
+          config = with lib; mkIf cfg.enable rec {
+            bldScript = pkgs.copyPathToStore ./vybld.nix;
+            
+            systemd.services.vyosBld = {
+              wantedBy = [ "multi-user.target" ];
+              serviceConfig = {
+                ExecStart = "${pkgs.nix-shell} ${bldScript} -p docker git"
+                Type = "onshot";
+              };
+            };
+            systemd.timer.vyosBld-time = {
+              wantedBy = [ "timers.target" ];
+              timerConfig = {
+                Unit = "vyosBld.service";
+                OnCalendar = cfg.buildFreq;
+              };
+            };
+          };
+        };
+      ;
     });
 }