nixos/modules/cctl: initial module definition

nixos/default.nix

@@ -40,6 +40,12 @@ in
           imports = [ ./modules/kairos.nix ];
           services.kairos.package = self.packages.${pkgs.system}.kairos;
         };
+      cctl =
+        { pkgs, lib, ... }:
+        {
+          imports = [ ./modules/cctl.nix ];
+          services.cctl.package = self.packages.${pkgs.system}.cctld;
+        };
     };
   };
 }

nixos/modules/cctl.nix

@@ -0,0 +1,69 @@
+{ lib, pkgs, config, ... }:
+let
+  inherit (lib)
+    types
+    mkOption
+    mkIf
+    mkMerge
+    mkEnableOption
+    mdDoc
+    ;
+  cfg = config.services.cctl;
+in
+{
+  options.services.cctl = {
+
+    enable = mkEnableOption (mdDoc "cctl");
+
+    package = mkOption {
+      type = types.package;
+    };
+
+    port = mkOption {
+      type = types.port;
+      default = 11101;
+      example = 60000;
+      description = mdDoc ''
+        Port to listen on.
+        TODO make port configurable in cctl
+      '';
+    };
+
+    logLevel = mkOption {
+      type = types.enum [
+        "error"
+        "warn"
+        "info"
+        "debug"
+        "trace"
+      ];
+      default = "info";
+      description = ''
+        The log-level that should be used.
+      '';
+    };
+  };
+
+  config = mkIf cfg.enable {
+
+    systemd.services.cctl =
+      {
+        description = "cctl";
+        documentation = [ "" ];
+        wantedBy = [ "multi-user.target" ];
+        after = [ "network-online.target" ];
+        requires = [ "network-online.target" ];
+        environment = {
+          RUST_LOG = cfg.logLevel;
+        };
+        serviceConfig = mkMerge [
+          {
+            ExecStart = ''${lib.getExe cfg.package}'';
+            Type = "notify";
+            Restart = "always";
+            DynamicUser = true;
+          }
+        ];
+      };
+  };
+}