nixos/prometheus: add smokeping and corresponding NixOS test
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@ -47,6 +47,7 @@ let
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"rspamd"
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"rtl_433"
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"snmp"
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"smokeping"
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"sql"
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"surfboard"
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"tor"
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@ -0,0 +1,60 @@
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{ config, lib, pkgs, options }:
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with lib;
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let
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cfg = config.services.prometheus.exporters.smokeping;
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goDuration = types.mkOptionType {
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name = "goDuration";
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description = "Go duration (https://golang.org/pkg/time/#ParseDuration)";
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check = x: types.str.check x && builtins.match "(-?[0-9]+(\.[0-9]+)?(ns|us|µs|ms|s|m|h))+" x != null;
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inherit (types.str) merge;
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};
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in
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{
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port = 9374;
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extraOpts = {
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telemetryPath = mkOption {
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type = types.str;
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default = "/metrics";
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description = ''
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Path under which to expose metrics.
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'';
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};
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pingInterval = mkOption {
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type = goDuration;
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default = "1s";
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description = ''
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Interval between pings.
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'';
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};
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buckets = mkOption {
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type = types.commas;
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default = "5e-05,0.0001,0.0002,0.0004,0.0008,0.0016,0.0032,0.0064,0.0128,0.0256,0.0512,0.1024,0.2048,0.4096,0.8192,1.6384,3.2768,6.5536,13.1072,26.2144";
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description = ''
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List of buckets to use for the response duration histogram.
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'';
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};
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hosts = mkOption {
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type = with types; listOf str;
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description = ''
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List of endpoints to probe.
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'';
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};
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};
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serviceOpts = {
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serviceConfig = {
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AmbientCapabilities = [ "CAP_NET_RAW" ];
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ExecStart = ''
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${pkgs.prometheus-smokeping-prober}/bin/smokeping_prober \
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--web.listen-address ${cfg.listenAddress}:${toString cfg.port} \
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--web.telemetry-path ${cfg.telemetryPath} \
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--buckets ${cfg.buckets} \
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--ping.interval ${cfg.pingInterval} \
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--privileged \
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${concatStringsSep " \\\n " cfg.extraFlags} \
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${concatStringsSep " " cfg.hosts}
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'';
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};
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};
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}
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@ -670,6 +670,27 @@ let
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'';
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};
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smokeping = {
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exporterConfig = {
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enable = true;
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hosts = ["127.0.0.1"];
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};
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exporterTest = ''
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wait_for_unit("prometheus-smokeping-exporter.service")
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wait_for_open_port(9374)
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wait_until_succeeds(
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"curl -sSf localhost:9374/metrics | grep '{}' | grep -qv ' 0$'".format(
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'smokeping_requests_total{host="127.0.0.1",ip="127.0.0.1"} '
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)
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)
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wait_until_succeeds(
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"curl -sSf localhost:9374/metrics | grep -q '{}'".format(
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'smokeping_response_ttl{host="127.0.0.1",ip="127.0.0.1"}'
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)
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)
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'';
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};
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snmp = {
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exporterConfig = {
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enable = true;
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