1 files changed, 18 insertions, 8 deletions
diff --git a/nixos/modules/services/databases/tigerbeetle.nix b/nixos/modules/services/databases/tigerbeetle.nix
index a9c7a24250a69..7b512055e44e5 100644
--- a/nixos/modules/services/databases/tigerbeetle.nix
+++ b/nixos/modules/services/databases/tigerbeetle.nix
@@ -42,8 +42,8 @@ in
       };
 
       cacheGridSize = mkOption {
-        type = types.strMatching "[0-9]+(K|M|G)B";
-        default = "1GB";
+        type = types.strMatching "[0-9]+(K|M|G)iB";
+        default = "1GiB";
         description = ''
           The grid cache size.
           The grid cache acts like a page cache for TigerBeetle.
@@ -97,16 +97,26 @@ in
         '';
 
         serviceConfig = {
-          Type = "exec";
-
+          DevicePolicy = "closed";
           DynamicUser = true;
+          ExecStart = "${lib.getExe cfg.package} start --cache-grid=${cfg.cacheGridSize} --addresses=${lib.escapeShellArg (builtins.concatStringsSep "," cfg.addresses)} ${replicaDataPath}";
+          LockPersonality = true;
+          ProtectClock = true;
+          ProtectControlGroups = true;
           ProtectHome = true;
-          DevicePolicy = "closed";
-
+          ProtectHostname = true;
+          ProtectKernelLogs = true;
+          ProtectKernelModules = true;
+          ProtectKernelTunables = true;
+          ProtectProc = "noaccess";
+          ProtectSystem = "strict";
+          RestrictAddressFamilies = [ "AF_INET" "AF_INET6" ];
+          RestrictNamespaces = true;
+          RestrictRealtime = true;
+          RestrictSUIDSGID = true;
           StateDirectory = "tigerbeetle";
           StateDirectoryMode = 700;
-
-          ExecStart = "${lib.getExe cfg.package} start --cache-grid=${cfg.cacheGridSize} --addresses=${lib.escapeShellArg (builtins.concatStringsSep "," cfg.addresses)} ${replicaDataPath}";
+          Type = "exec";
         };
       };