101 lines
2.2 KiB
Nix
101 lines
2.2 KiB
Nix
{ config, lib, pkgs, options, ... }:
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with lib;
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let
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cfg = config.modules.services.metrics;
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in {
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options.modules.services.metrics = {
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enable = mkEnableOption "enable grafana with loki, prometheus, and promtail";
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domain = mkOption {
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type = types.str;
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default = "grafana.reidlab.pink";
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};
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port = mkOption {
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type = types.int;
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default = 2342;
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};
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};
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config = mkIf cfg.enable {
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systemd.services.promtail = {
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description = "promtail, an agent for loki";
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wantedBy = [ "multi-user.target" ];
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serviceConfig = {
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ExecStart = ''
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${pkgs.grafana-loki}/bin/promtail --config.file ${./promtail.yml}
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'';
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};
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};
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services = {
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grafana = {
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enable = true;
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settings = {
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server = {
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domain = cfg.domain;
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http_port = cfg.port;
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http_addr = "127.0.0.1";
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};
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};
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};
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prometheus = let
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ports = {
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base = 9001;
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node = 9002;
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nginx = 9003;
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};
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in {
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enable = true;
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port = ports.base;
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exporters = {
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node = {
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enable = true;
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enabledCollectors = [ "systemd" ];
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port = ports.node;
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};
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nginx = {
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enable = true;
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port = ports.nginx;
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};
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};
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scrapeConfigs = [
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{
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job_name = "nixos-server-reid";
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static_configs = [{
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targets = [
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"127.0.0.1:${toString ports.node}"
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"127.0.0.1:${toString ports.nginx}"
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];
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}];
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}
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];
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};
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loki = {
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enable = true;
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configFile = ./loki-local-config.yml;
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};
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nginx.statusPage = true;
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nginx.virtualHosts."${cfg.domain}" = {
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forceSSL = true;
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enableACME = true;
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locations."/" = {
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proxyPass = "http://127.0.0.1:${toString cfg.port}";
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proxyWebsockets = true;
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};
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locations."= /robots.txt" ={
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extraConfig = ''
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add_header Content-Type text/plain;
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return 200 "User-agent: *\nDisallow: /\n";
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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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