fail2ban: Add metrics

configuration/default.nix

@@ -150,8 +150,26 @@
     '';
   };
 
+  services.logrotate = {
+    enable = true;
+
+    settings = lib.mapAttrs' (virtualHost: _:
+      lib.nameValuePair "/var/log/nginx/${virtualHost}/access.log" {
+        frequency = "daily";
+        rotate = 2;
+        compress = true;
+        delaycompress = true;
+        su = "${config.services.nginx.user} ${config.services.nginx.group}";
+        postrotate = "[ ! -f /var/run/nginx/nginx.pid ] || kill -USR1 `cat /var/run/nginx/nginx.pid`";
+      })
+    config.services.nginx.virtualHosts;
+  };
   systemd.tmpfiles.rules =
-    lib.mapAttrsToList (virtualHost: config: "d /var/log/nginx/${virtualHost} 0750 nginx nginx")
+    lib.mapAttrsToList (
+      virtualHost: _:
+      #
+      "d /var/log/nginx/${virtualHost} 0750 ${config.services.nginx.user} ${config.services.nginx.group}"
+    )
     config.services.nginx.virtualHosts;
 
   security.acme = {