nix: update to latest nixpkgs

[sourcephile-nix.git] / hosts / losurdo / prometheus.nix

diff --git a/hosts/losurdo/prometheus.nix b/hosts/losurdo/prometheus.nix
index 377da8fb5bcac70148f24b4dfdca266f23de718b..5e172796546f8f30b153fbc947297f99bab0c12b 100644 (file)
--- a/hosts/losurdo/prometheus.nix
+++ b/hosts/losurdo/prometheus.nix
@@ -1,6 +1,130 @@
-{ pkgs, lib, config, ... }:
+{ pkgs, lib, config, hostName, ... }:
+let
+  inherit (config.services) prometheus;
+  listenAddress = "127.0.0.1";
+in
 {
 services.prometheus = {
   enable = true;
+  inherit listenAddress;
+  port = 9090;
+  extraFlags = [
+    "--storage.tsdb.retention.time 30d"
+  ];
+  exporters = {
+    apcupsd = {
+      enable = true;
+      inherit listenAddress;
+    };
+    node = {
+      enable = true;
+      inherit listenAddress;
+      #enabledCollectors = [ "wifi" ];
+    };
+    smokeping = {
+      #enable = true;
+      inherit listenAddress;
+      buckets = "0.0001,0.001,0.005,0.01,0.02,0.04,0.06,0.08,0.16,0.24,0.32,0.4,0.48,0.8,1.6,3.2,6.4";
+      hosts = [ "www.fdn.fr" "8.8.8.8" ];
+      pingInterval = "3s";
+    };
+    systemd = {
+      enable = true;
+      inherit listenAddress;
+    };
+    wireguard = {
+      #enable = true;
+      inherit listenAddress;
+      withRemoteIp = true;
+    };
+  };
+  scrapeConfigs = [
+    {
+      job_name = hostName;
+      static_configs = [
+        {
+          targets = [
+            "${listenAddress}:${toString prometheus.exporters.apcupsd.port}"
+            "${listenAddress}:${toString prometheus.exporters.node.port}"
+            #"[${listenAddress}:${toString prometheus.exporters.smokeping.port}"
+            "${listenAddress}:${toString prometheus.exporters.systemd.port}"
+            #"${listenAddress}:${toString prometheus.exporters.wireguard.port}"
+          ];
+        }
+      ];
+    }
+  ];
+  /*
+  alertmanagers = [
+    {
+      static_configs = [ { targets = [ "${listenAddress}:9093" ]; } ];
+    }
+  ];
+  alertmanager = {
+    enable = true;
+    inherit listenAddress;
+    configuration = {
+      global = {
+        "smtp_smarthost" = "localhost:25";
+        "smtp_require_tls" = false;
+        "smtp_from" = "alertmanager@${domain}";
+      };
+      route = {
+        "group_by" = [ "alertname" "alias" ];
+        "group_wait" = "30s";
+        "group_interval" = "2m";
+        "repeat_interval" = "12h";
+        "receiver" = "root";
+      };
+      receivers = [
+        {
+          "name" = "root";
+          "email_configs" = [
+            {
+              "to" = "root+alertmanager@${domain}";
+              "send_resolved" = true;
+            }
+          ];
+        }
+      ];
+    };
+  };
+  rules = [
+    ''
+      groups:
+        - name: custom_rules
+          rules:
+            - record: battery_percent
+              expr: 100 * battery_energy_now / battery_energy_full
+            - alert: battery_soon_out
+              expr: predict_linear(battery_percent[30m], 3600) <= 10
+              for: 5m
+              labels:
+                severity: warning
+              annotations:
+                summary: "Instance [{{ $labels.instance }}] battery about 1h left"
+                description: "[{{ $labels.instance }}] battery in 1h estimated to {{ $value }}%"
+    ''
+  ];
+  */
+};
+services.grafana = {
+  enable = true;
+  addr = listenAddress;
+  port = 3000;
+  analytics.reporting.enable = false;
+  extraOptions = {
+    ANALYTICS_CHECK_FOR_UPDATES = "false";
+  };
+};
+# override systemd exporter execstart to enable option...
+# FIXME: use extraFlags
+systemd.services.prometheus-systemd-exporter.serviceConfig = {
+  ExecStart = lib.mkForce ''
+    ${pkgs.prometheus-systemd-exporter}/bin/systemd_exporter \
+      --web.listen-address=${listenAddress}:${toString prometheus.exporters.systemd.port} \
+      --collector.enable-ip-accounting \
+      --collector.enable-restart-count
+  '';
 };
 }