702594ca64
Break out the configuration for the prometheus fail2ban exporter, which is a simple python script that exports stats from fail2ban as a prometheus-scrapable textfile, from Mugwump into a reusable nixos module in //ops/nixos/modules. Change-Id: I5451c9c5de6c7bc4431150ae596a9c758bf1b693 Reviewed-on: https://cl.tvl.fyi/c/depot/+/3136 Tested-by: BuildkiteCI Reviewed-by: tazjin <mail@tazj.in>
52 lines
1.3 KiB
Nix
52 lines
1.3 KiB
Nix
{ config, lib, pkgs, depot, ... }:
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let
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cfg = config.services.prometheus-fail2ban-exporter;
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in
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{
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options.services.prometheus-fail2ban-exporter = with lib; {
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enable = mkEnableOption "Prometheus Fail2ban Exporter";
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interval = mkOption {
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description = "Systemd calendar expression for how often to run the interval";
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type = types.string;
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default = "minutely";
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example = "hourly";
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};
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};
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config = lib.mkIf cfg.enable {
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systemd.services."prometheus-fail2ban-exporter" = {
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wantedBy = [ "multi-user.target" ];
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after = [ "network.target" "fail2ban.service" ];
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serviceConfig = {
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User = "root";
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Type = "oneshot";
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ExecStart = pkgs.writeShellScript "prometheus-fail2ban-exporter" ''
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set -eo pipefail
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mkdir -p /var/lib/prometheus/node-exporter
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exec prometheus-fail2ban-exporter
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'';
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};
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path = [
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pkgs.fail2ban
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depot.third_party.prometheus-fail2ban-exporter
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];
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};
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systemd.timers."prometheus-fail2ban-exporter" = {
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wantedBy = [ "multi-user.target" ];
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timerConfig.OnCalendar = cfg.interval;
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};
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services.prometheus.exporters.node = {
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enabledCollectors = [ "textfile" ];
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extraFlags = [
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"--collector.textfile.directory=/var/lib/prometheus/node-exporter"
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];
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};
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};
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}
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