monitoring: initial config for victoriametrics

modules/monitoring/monitoring.nix

@@ -1,4 +1,14 @@
-{ config, ... }:
+{ config, pkgs, ... }:
+let
+  configure_prom = builtins.toFile "prometheus.yml" ''
+    scrape_configs:
+    - job_name: 'bebop'
+      stream_parse: true
+      static_configs:
+      - targets:
+        - 127.0.0.1:9100
+  '';
+in
 {
   # Open grafana port, but only for local network
   networking.firewall.extraCommands = ''
@@ -10,10 +20,13 @@
   '';
 
   services = {
+    victoriametrics = {
+      enable = true;
+    };
 
     # Collect data with conveniently declared 'scrapers'
     prometheus = {
-      enable = true;
+      enable = false;
       port = 9001;
 
       # Enable prometheus to collect data from systemd
@@ -99,12 +112,12 @@
     };
 
     influxdb = {
-      enable = true;
+      enable = false;
       # dataDir = "~/.config/influxdb";
     };
 
     telegraf = {
-      enable = true;
+      enable = false;
       extraConfig = {
         inputs = {
           # zfs = { poolMetrics = true; };
@@ -174,4 +187,12 @@
       };
     };
   };
+
+  systemd.services.export-to-prometheus = {
+    path = with pkgs; [ victoriametrics ];
+    enable = true;
+    after = [ "network-online.target" ];
+    wantedBy = [ "multi-user.target" ];
+    script = "vmagent -promscrape.config=${configure_prom} -remoteWrite.url=http://127.0.0.1:8428/api/v1/write";
+  };
 }