Simon Gardling
3f62b9c88e
Replace three custom Prometheus textfile collector scripts with
dedicated community-maintained exporters:
- jellyfin-collector.nix (25 LoC shell) -> rebelcore/jellyfin_exporter
Metric: jellyfin_active_streams -> count(jellyfin_now_playing_state)
Bonus: per-session labels (user, title, device, codec info)
- qbittorrent-collector.nix (40 LoC shell) -> anriha/qbittorrent-metrics-exporter
Metric: qbittorrent_{download,upload}_bytes_per_second -> qbit_{dl,up}speed
Bonus: per-torrent metrics with category/tag aggregation
- intel-gpu-collector.nix + .py (130 LoC Python) -> mike1808/igpu-exporter
Metric: intel_gpu_engine_busy_percent -> igpu_engines_busy_percent
Bonus: persistent daemon vs oneshot timer, no streaming JSON parser
All three run as persistent daemons scraped by Prometheus, replacing
the textfile-collector pattern of systemd timers writing .prom files.
Dashboard PromQL queries updated to match new metric names.
99 lines
2.5 KiB
Nix
99 lines
2.5 KiB
Nix
{
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service_configs,
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lib,
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...
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}:
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let
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textfileDir = "/var/lib/prometheus-node-exporter-textfiles";
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in
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{
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imports = [
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(lib.serviceMountWithZpool "prometheus" service_configs.zpool_ssds [
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"/var/lib/prometheus"
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])
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(lib.serviceFilePerms "prometheus" [
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"Z /var/lib/prometheus 0700 prometheus prometheus"
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])
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];
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services.prometheus = {
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enable = true;
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port = service_configs.ports.private.prometheus.port;
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listenAddress = "127.0.0.1";
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stateDir = "prometheus";
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retentionTime = "90d";
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exporters = {
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node = {
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enable = true;
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port = service_configs.ports.private.prometheus_node.port;
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listenAddress = "127.0.0.1";
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enabledCollectors = [
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"hwmon"
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"systemd"
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"textfile"
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];
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extraFlags = [
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"--collector.textfile.directory=${textfileDir}"
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];
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};
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apcupsd = {
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enable = true;
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port = service_configs.ports.private.prometheus_apcupsd.port;
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listenAddress = "127.0.0.1";
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apcupsdAddress = "127.0.0.1:3551";
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};
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};
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scrapeConfigs = [
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{
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job_name = "prometheus";
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static_configs = [
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{ targets = [ "127.0.0.1:${toString service_configs.ports.private.prometheus.port}" ]; }
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];
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}
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{
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job_name = "node";
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static_configs = [
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{ targets = [ "127.0.0.1:${toString service_configs.ports.private.prometheus_node.port}" ]; }
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];
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}
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{
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job_name = "apcupsd";
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static_configs = [
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{ targets = [ "127.0.0.1:${toString service_configs.ports.private.prometheus_apcupsd.port}" ]; }
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];
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}
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{
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job_name = "llama-cpp";
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static_configs = [
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{ targets = [ "127.0.0.1:${toString service_configs.ports.private.llama_cpp.port}" ]; }
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];
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}
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{
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job_name = "jellyfin";
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static_configs = [
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{ targets = [ "127.0.0.1:${toString service_configs.ports.private.jellyfin_exporter.port}" ]; }
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];
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}
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{
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job_name = "qbittorrent";
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static_configs = [
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{ targets = [ "127.0.0.1:${toString service_configs.ports.private.qbittorrent_exporter.port}" ]; }
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];
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}
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{
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job_name = "igpu";
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static_configs = [
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{ targets = [ "127.0.0.1:${toString service_configs.ports.private.igpu_exporter.port}" ]; }
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];
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}
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];
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};
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systemd.tmpfiles.rules = [
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"d ${textfileDir} 0755 root root -"
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];
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}
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