82 lines
2.3 KiB
Nix
82 lines
2.3 KiB
Nix
{ lib, config, self, ... }:
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let
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cfg = config.deployment-TLMS.monitoring;
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monitoring-host = self.nixosConfigurations.notice-me-senpai.config;
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in
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{
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options.deployment-TLMS.monitoring = with lib; {
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enable = mkOption {
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type = types.bool;
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default = true;
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description = ''
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Whether to enable TLMS default prometheus exporter and log collection
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'';
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};
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node-exporter = with lib; {
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port = mkOption {
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type = types.port;
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default = 8119;
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description = ''
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Default port for prometheus node exporter to listen to
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'';
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};
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};
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promtail-config = with lib; {
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http_port = mkOption {
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type = types.port;
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default = 28183;
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description = ''Default port for promtail log exporter'';
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};
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};
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};
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config =
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let
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wg-addr-pred = lib.assertMsg (!(isNull config.deployment-TLMS.net.wg.addr4)) "to add system to monitoring, add it to TLMS wireguard first!";
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in
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lib.mkIf (cfg.enable && wg-addr-pred) {
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# prometheus node exporter
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services.prometheus.exporters = {
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node = {
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enable = true;
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port = cfg.node-exporter.port;
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listenAddress = config.deployment-TLMS.net.wg.addr4;
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enabledCollectors = [
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"systemd"
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];
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};
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};
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# promtail log exporter
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services.promtail = {
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enable = true;
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configuration = {
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server = {
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http_listen_port = cfg.promtail-config.http_port;
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grpc_listen_port = 0;
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};
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positions = {
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filename = "/tmp/positions.yaml";
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};
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clients = [{
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url = "http://${monitoring-host.deployment-TLMS.net.wg.addr4}:${toString monitoring-host.services.loki.configuration.server.http_listen_port}/loki/api/v1/push";
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}];
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scrape_configs = [{
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job_name = "journal";
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journal = {
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max_age = "24h";
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labels = {
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job = "systemd-journal";
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host = config.networking.hostName;
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};
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};
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relabel_configs = [{
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source_labels = [ "__journal__systemd_unit" ];
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target_label = "unit";
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}];
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}];
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};
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};
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};
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}
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