124 lines
3.5 KiB
Nix
124 lines
3.5 KiB
Nix
{ hostName, self, config, lib, pkgs, ... }:
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let
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inherit (pkgs.targetPlatform) system;
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hostRole = config.site.hosts.${hostName}.role;
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networkPort = 25826;
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upstreamTypesDb = pkgs.stdenv.mkDerivation {
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name = "types.db";
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src = config.services.collectd.package.src;
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phases = [ "unpackPhase" "installPhase" ];
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installPhase = "cp src/types.db $out";
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};
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customTypesDb = builtins.toFile "types.db" ''
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stations value:GAUGE:0:U
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'';
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inherit (config.services.collectd) user;
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execUser =
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if user == "root"
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then "nobody"
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else user;
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isUpstream =
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builtins.match "upstream.*" hostName != null ||
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builtins.match "anon.*" hostName != null;
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hasStarlink =
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builtins.any ({ upstream, ... }:
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if upstream == null
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then false
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else upstream.provider == "starlink"
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) (builtins.attrValues config.site.hosts.${hostName}.interfaces);
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in
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{
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services.collectd = lib.mkMerge [ {
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enable = true;
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buildMinimalPackage = true;
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extraConfig = ''
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TypesDB "${upstreamTypesDb}" "${customTypesDb}"
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'';
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plugins = {
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interface = "";
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conntrack = "";
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};
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} (lib.optionalAttrs (hostName == "stats") {
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plugins.network = ''
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Listen "::" "${toString networkPort}"
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Forward true
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Server "${config.site.net.serv.hosts4.spaceapi}" "${toString networkPort}"
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Server "${config.site.net.serv.hosts4.grafana}" "${toString networkPort}"
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'';
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plugins.mqtt = ''
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<Publish "broker">
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Host "${config.site.mqttServer.host}"
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User "${config.site.mqttServer.user}"
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Password "${config.site.mqttServer.password}"
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ClientId "collectd-${hostName}"
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</Publish>
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'';
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}) (lib.optionalAttrs (hostName != "stats") {
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plugins.network = ''
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Server "${config.site.net.serv.hosts6.dn42.stats}" "${toString networkPort}"
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'';
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}) (lib.optionalAttrs (hostRole == "server") {
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plugins = {
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irq = "";
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cpu = "";
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load = "";
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memory = "";
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swap = "";
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entropy = "";
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disk = "";
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df = "";
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processes = "";
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hddtemp = "";
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sensors = "";
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thermal = "";
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};
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}) (lib.optionalAttrs isUpstream {
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user = "root";
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plugins.ping = ''
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Interval 10
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Timeout 1
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Size 0
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MaxMissed 100
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Host "8.8.8.8"
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Host "2001:4860:4860::8888"
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Host "ip5886d7b6.static.kabel-deutschland.de"
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Host "r.njalla.net"
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Host "inbert.c3d2.de"
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Host "heise.de"
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'';
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}) (lib.optionalAttrs config.services.dhcpd4.enable {
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plugins.exec =
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let
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maxTimeout = builtins.foldl' (maxTimeout: net:
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let
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dhcpConf = config.site.net.${net}.dhcp;
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in
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if dhcpConf != null &&
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dhcpConf.server == hostName &&
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dhcpConf.time > maxTimeout
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then dhcpConf.time
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else maxTimeout
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) 180 (builtins.attrNames config.site.net);
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in ''
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Exec "${execUser}" "${pkgs.ruby}/bin/ruby" "${./dhcpcount.rb}" "${toString maxTimeout}"
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'';
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}) (lib.optionalAttrs config.services.unbound.enable {
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plugins.exec = ''
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Exec "${execUser}" "${pkgs.ruby}/bin/ruby" "${./unbound.rb}"
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'';
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}) (lib.optionalAttrs hasStarlink {
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plugins.exec = ''
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Exec "nobody" "${self.packages.${system}.starlink-stats}/bin/starlink-stats" "192.168.100.1:9200"
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'';
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}) ];
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systemd.services.collectd = lib.mkIf config.services.dhcpd4.enable {
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after = [ "dhcpd4.service" ];
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serviceConfig.StateDirectory = "dhcpd4";
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};
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}
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