feat(nixosModules/server): add mongodb

modules/nixos/server/databases/default.nix

@@ -0,0 +1,38 @@
+{ lib, config, ... }:
+let
+  cfg = config.server.databases;
+in
+{
+  options.server.databases = {
+    mongodb.enable = lib.mkEnableOption "";
+    mongodb.dbPath = lib.mkOption {
+      type = lib.types.str;
+      default = "/var/db/mongodb";
+    };
+    mongodb.port = lib.mkOption {
+      type = lib.types.int;
+      default = 27017;
+    };
+  };
+
+  config = lib.mkMerge [
+    (lib.mkIf cfg.mongodb.enable {
+      environment.persistence."/persist".directories = [
+        {
+          directory = cfg.mongodb.dbPath;
+          user = "mongodb";
+          group = "mongodb";
+        }
+      ];
+      networking.firewall.allowedTCPPorts = [ cfg.mongodb.port ];
+      services.mongodb = {
+        enable = true;
+        dbpath = cfg.mongodb.dbPath;
+        bind_ip = "0.0.0.0";
+        extraConfig = ''
+          net.port: ${builtins.toString cfg.mongodb.port}
+        '';
+      };
+    })
+  ];
+}

systems/x86_64-linux/apollo/default.nix

@@ -23,6 +23,7 @@
   server = {
     enableDDNS = true;
     mountHelios = true;
+    databases.mongodb.enable = true;
   };
 
   nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";