58 lines
1.7 KiB
Nix
58 lines
1.7 KiB
Nix
{
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roles.default.perInstance = { settings, ... }: {
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nixosModule =
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{
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pkgs,
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...
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}:
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let
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textfileDir = "/var/lib/speedtest";
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in
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{
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services.prometheus.exporters.node.extraFlags = [
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"--collector.textfile.directory=${textfileDir}"
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];
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systemd.services.speedtest = {
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description = "WAN speed test to Prometheus textfile metrics";
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after = [ "network-online.target" ];
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wants = [ "network-online.target" ];
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path = [
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pkgs.librespeed-cli
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pkgs.jq
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];
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serviceConfig = {
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Type = "oneshot";
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StateDirectory = "speedtest";
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# One test at boot would race PPPoE and log a spurious failure.
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ExecCondition = "${pkgs.iproute2}/bin/ip link show ppp0";
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};
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script = ''
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tmp="${textfileDir}/.speedtest.prom.tmp"
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if result=$(librespeed-cli --json); then
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jq -r '.[0]
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| "speedtest_download_mbps \(.download)",
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"speedtest_upload_mbps \(.upload)",
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"speedtest_ping_ms \(.ping)",
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"speedtest_jitter_ms \(.jitter)",
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"speedtest_success 1"' <<<"$result" > "$tmp"
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else
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echo "speedtest_success 0" > "$tmp"
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fi
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mv "$tmp" "${textfileDir}/speedtest.prom"
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'';
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};
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systemd.timers.speedtest = {
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wantedBy = [ "timers.target" ];
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timerConfig = {
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OnCalendar = settings.speedtestInterval;
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RandomizedDelaySec = "10m";
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Persistent = 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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