117 lines
2.7 KiB
Nix
117 lines
2.7 KiB
Nix
{ lib, pkgs, nixpkgs-unstable, config, machines, ... }:
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let
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cfg = config.lab.monitoring;
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in
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{
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imports = [
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"${nixpkgs-unstable}/nixos/modules/services/monitoring/gatus.nix"
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./gatus-endpoints.nix
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];
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options = {
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lab.monitoring = {
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enable = lib.mkOption {
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default = true;
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type = lib.types.bool;
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};
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server.enable = lib.mkOption {
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default = false;
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type = lib.types.bool;
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};
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};
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};
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config = lib.mkIf cfg.enable {
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networking.firewall.allowedTCPPorts = [ config.services.prometheus.exporters.node.port ]
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++ lib.lists.optionals cfg.server.enable [ 80 ];
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services.prometheus = {
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enable = cfg.server.enable;
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webExternalUrl = "/prometheus";
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exporters = {
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node = {
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enable = true;
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};
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};
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scrapeConfigs = lib.mkIf cfg.server.enable (
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lib.attrsets.mapAttrsToList
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(name: machine:
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let
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# TODO: should finally create my own lib...
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domain = if machine.isPhysical then "hyp" else "dmz";
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in
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{
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job_name = name;
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static_configs = [{
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targets = [ "${name}.${domain}:${toString config.services.prometheus.exporters.node.port}" ];
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}];
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})
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machines
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);
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};
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services.gatus = lib.mkIf cfg.server.enable {
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enable = true;
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package = pkgs.unstable.gatus;
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settings = {
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storage = {
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type = "sqlite";
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path = "/srv/gatus/gatus.db";
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};
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alerting.email = {
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from = "gatus@kun.is";
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host = "mail.smtp2go.com";
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port = 2525;
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to = "pim@kunis.nl";
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client.insecure = true;
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default-alert = {
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enabled = true;
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failure-threshold = 2;
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success-threshold = 1;
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send-on-resolved = true;
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};
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};
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};
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};
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users = {
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users.gatus = {
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isSystemUser = true;
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group = "gatus";
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};
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groups.gatus = { };
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};
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system.activationScripts = lib.mkIf cfg.server.enable {
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gatus = ''
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mkdir -p /srv/gatus
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chown gatus:gatus /srv/gatus
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'';
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};
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services.nginx = lib.mkIf cfg.server.enable {
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enable = true;
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virtualHosts."${config.networking.fqdn}" = {
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locations = {
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"/" = {
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proxyPass = "http://127.0.0.1:${toString config.services.gatus.settings.web.port}";
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recommendedProxySettings = true;
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};
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"/prometheus/" = {
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proxyPass = "http://127.0.0.1:${toString config.services.prometheus.port}";
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recommendedProxySettings = true;
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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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