1 files changed, 7 insertions, 3 deletions

diff --git a/modules/prometheus-lvm-exporter.nix b/modules/prometheus-lvm-exporter.nix
index f1d3616a..fe5c4efa 100644
--- a/modules/prometheus-lvm-exporter.nix
+++ b/modules/prometheus-lvm-exporter.nix
@@ -10,8 +10,8 @@ in {
       enable = mkEnableOption "Prometheus LVM exporter";
 
       listenAddress = mkOption {
-        type = types.str;
-        default = "localhost";
+        type = types.nullOr types.str;
+        default = null;
       };
       port = mkOption {
         type = types.port;
@@ -47,11 +47,15 @@ in {
 
       serviceConfig = {
         ExecStart = "${pkgs.prometheus-lvm-exporter}/bin/prometheus-lvm-exporter ${utils.escapeSystemdExecArgs [
-          "--web.listen-address" "${cfg.listenAddress}:${toString cfg.port}"
+          "--web.systemd-socket"
         ]}";
 
         Restart = "always";
       };
     };
+
+    systemd.sockets."prometheus-lvm-exporter" = {
+      socketConfig.ListenStream = "${optionalString (cfg.listenAddress != null) (cfg.listenAddress + ":")}${toString cfg.port}";
+    };
   };
 }