add metrics to web

hosts/web-01.cloonar.com/modules/victoriametrics.nix

@@ -1,10 +1,25 @@
 { config, ... }:
-{
-  services.victoriametrics.enable = true;
+let
+  configure_prom = builtins.toFile "prometheus.yml" ''
+    scrape_configs:
+    - job_name: '${config.networking.hostName}'
+      stream_parse: true
+      static_configs:
+      - targets:
+        - 127.0.0.1:9100
+  '';
+in {
   services.prometheus.exporters.node.enable = true;
 
   sops.secrets.victoria-nginx-password.owner = "nginx";
 
+  services.victoriametrics = {
+    enable = true;
+    extraOptions = [
+      "-promscrape.config=${configure_prom}"
+    ];
+  };
+
   services.nginx.virtualHosts."victoria-server.cloonar.com" = {
     forceSSL = true;
     enableACME = true;