1 files changed, 75 insertions, 0 deletions
diff --git a/modules/monitoring/system.nix b/modules/monitoring/system.nix
new file mode 100644
index 0000000..cc1ec66
--- /dev/null
+++ b/modules/monitoring/system.nix
@@ -0,0 +1,75 @@
+{ lib, config, ... }:
+let
+  cfg = config.monitoring;
+in
+{
+  config = lib.mkIf (cfg.monitorAll) {
+    services.prometheus.exporters.node = {
+      enable = true;
+      port = 9100;
+      enabledCollectors = [
+        #"logind" #too slow
+        "systemd"
+        "processes"
+        "interrupts"
+        # Testing:
+        "buddyinfo"
+        "cgroups"
+        "ksmd"
+        "lnstat"
+        "mountstats"
+        "network_route"
+        #"perf" # requires sysctl change
+        "qdisc"
+        "sysctl"
+        "softirqs"
+        "tcpstat"
+      ];
+      disabledCollectors = [
+        "textfile"
+        "xfs"
+        "zfs"
+        "selinux"
+        "cpufreq"
+        "btrfs"
+        "powersupplyclass"
+        "mdadm"
+        "tapestats"
+        "fibrechannel"
+        "cpu_vulnerabilities"
+        "watchdog"
+        "thermal_zone"
+        "logind"
+        "nfs"
+        "nfsd"
+        "infiniband"
+      ];
+    };
+
+    services.prometheus.scrapeConfigs = (
+        lib.map (interval: {
+            job_name = "node-${toString interval}s";
+            scrape_interval = "${toString interval}s";
+            static_configs = [ { targets = [ "localhost:${toString config.services.prometheus.exporters.node.port}" ]; } ];
+        }) cfg.prometheusScrapeIntervals
+    );
+
+    services.grafana.provision.dashboards.settings = {
+      apiVersion = 1;
+      providers = [
+        {
+          name = "default";
+          orgId = 1;
+          type = "file";
+          options = {
+            path = builtins.fetchurl {
+              url = "https://grafana.com/api/dashboards/1860/revisions/37/download";
+              sha256 = "0qza4j8lywrj08bqbww52dgh2p2b9rkhq5p313g72i57lrlkacfl";
+            };
+          };
+        }
+      ];
+    };
+
+  };
+}