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{ config, lib, pkgs, options, ... }:
with lib;
let
cfg = config.services.prometheus.exporters.ping;
settingsFormat = pkgs.formats.yaml {};
configFile = settingsFormat.generate "config.yml" cfg.settings;
in
{
port = 9427;
extraOpts = {
telemetryPath = mkOption {
type = types.str;
default = "/metrics";
description = ''
Path under which to expose metrics.
'';
};
settings = mkOption {
type = settingsFormat.type;
default = {};
description = lib.mdDoc ''
Configuration for ping_exporter, see
<https://github.com/czerwonk/ping_exporter>
for supported values.
'';
};
};
serviceOpts = {
serviceConfig = {
# ping-exporter needs `CAP_NET_RAW` to run as non root https://github.com/czerwonk/ping_exporter#running-as-non-root-user
CapabilityBoundingSet = [ "CAP_NET_RAW" ];
AmbientCapabilities = [ "CAP_NET_RAW" ];
ExecStart = ''
${pkgs.prometheus-ping-exporter}/bin/ping_exporter \
--web.listen-address ${cfg.listenAddress}:${toString cfg.port} \
--web.telemetry-path ${cfg.telemetryPath} \
--config.path="${configFile}" \
${concatStringsSep " \\\n " cfg.extraFlags}
'';
};
};
}
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