feat: Remove fail2ban

configuration/services/metrics/exporters.nix

@@ -68,34 +68,6 @@ in
       };
     };
 
-    extraExporters = {
-      fail2ban =
-        let
-          cfg = config.services.prometheus.extraExporters.fail2ban;
-        in
-        {
-          port = 9191;
-          serviceOpts = {
-            after = [ "fail2ban.service" ];
-            requires = [ "fail2ban.service" ];
-            serviceConfig = {
-              Group = "fail2ban";
-              RestrictAddressFamilies = [
-                "AF_UNIX"
-                "AF_INET"
-                "AF_INET6"
-              ];
-              ExecStart = lib.concatStringsSep " " [
-                "${pkgs.local.prometheus-fail2ban-exporter}/bin/fail2ban-prometheus-exporter"
-                "--collector.f2b.socket=/var/run/fail2ban/fail2ban.sock"
-                "--web.listen-address='${cfg.listenAddress}:${toString cfg.port}'"
-                "--collector.f2b.exit-on-socket-connection-error=true"
-              ];
-            };
-          };
-        };
-    };
-
     # TODO(tlater):
     #   - wireguard (?)
     #   - postgres (?)