commit 334e23d244d46f949feef7863ae5eb91e35e33e8 · pyrox.dev/nixpkgs

nixos/modules/module-list.nix

···

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         ./services/monitoring/prometheus/default.nix

     

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         ./services/monitoring/prometheus/alertmanager.nix

     

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         ./services/monitoring/prometheus/blackbox-exporter.nix

     

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         ./services/monitoring/prometheus/collectd-exporter.nix

     

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         ./services/monitoring/prometheus/fritzbox-exporter.nix

     

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         ./services/monitoring/prometheus/json-exporter.nix

     

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         ./services/monitoring/prometheus/nginx-exporter.nix

+128

nixos/modules/services/monitoring/prometheus/collectd-exporter.nix

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       { config, pkgs, lib, ... }:

     

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       with lib;

     

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       let

     

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         cfg = config.services.prometheus.collectdExporter;

     

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         collectSettingsArgs = if (cfg.collectdBinary.enable) then ''

     

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           -collectd.listen-address ${optionalString (cfg.collectdBinary.listenAddress != null) cfg.collectdBinary.listenAddress}:${toString cfg.collectdBinary.port} \

     

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           -collectd.security-level ${cfg.collectdBinary.securityLevel} \

     

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         '' else "";

     

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       in {

     

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         options = {

     

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           services.prometheus.collectdExporter = {

     

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             enable = mkEnableOption "prometheus collectd exporter";

     

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             port = mkOption {

     

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               type = types.int;

     

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               default = 9103;

     

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               description = ''

     

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                 Port to listen on.

     

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                 This is used for scraping as well as the to receive collectd data via the write_http plugin.

     

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               '';

     

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             };

     

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             listenAddress = mkOption {

     

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               type = types.nullOr types.str;

     

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               default = null;

     

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               example = "0.0.0.0";

     

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               description = ''

     

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                 Address to listen on for web interface, telemetry and collectd JSON data.

     

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               '';

     

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             };

     

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             collectdBinary = {

     

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               enable = mkEnableOption "collectd binary protocol receiver";

     

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               authFile = mkOption {

     

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                 default = null;

     

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                 type = types.nullOr types.path;

     

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                 description = "File mapping user names to pre-shared keys (passwords).";

     

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               };

     

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               port = mkOption {

     

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                 type = types.int;

     

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                 default = 25826;

     

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                 description = ''Network address on which to accept collectd binary network packets.'';

     

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               };

     

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               listenAddress = mkOption {

     

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                 type = types.nullOr types.str;

     

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                 default = null;

     

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                 example = "0.0.0.0";

     

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                 description = ''

     

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                   Address to listen on for binary network packets.

     

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                   '';

     

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               };

     

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               securityLevel = mkOption {

     

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                 type = types.enum ["None" "Sign" "Encrypt"];

     

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                 default = "None";

     

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                 description = ''

     

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                   Minimum required security level for accepted packets.

     

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                   '';

     

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               };

     

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             };

     

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             extraFlags = mkOption {

     

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               type = types.listOf types.str;

     

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               default = [];

     

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               description = ''

     

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                 Extra commandline options when launching the collectd exporter.

     

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               '';

     

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             };

     

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             logFormat = mkOption {

     

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               type = types.str;

     

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               default = "logger:stderr";

     

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               example = "logger:syslog?appname=bob&local=7 or logger:stdout?json=true";

     

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               description = ''

     

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                 Set the log target and format.

     

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               '';

     

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             };

     

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             logLevel = mkOption {

     

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               type = types.enum ["debug" "info" "warn" "error" "fatal"];

     

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               default = "info";

     

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               description = ''

     

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                 Only log messages with the given severity or above.

     

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               '';

     

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             };

     

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             openFirewall = mkOption {

     

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               type = types.bool;

     

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               default = false;

     

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               description = ''

     

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                 Open port in firewall for incoming connections.

     

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               '';

     

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             };

     

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           };

     

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         };

     

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         config = mkIf cfg.enable {

     

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           networking.firewall.allowedTCPPorts = (optional cfg.openFirewall cfg.port) ++

     

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             (optional (cfg.openFirewall && cfg.collectdBinary.enable) cfg.collectdBinary.port);

     

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           systemd.services.prometheus-collectd-exporter = {

     

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             description = "Prometheus exporter for Collectd metrics";

     

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             unitConfig.Documentation = "https://github.com/prometheus/collectd_exporter";

     

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             wantedBy = [ "multi-user.target" ];

     

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             serviceConfig = {

     

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               DynamicUser = true;

     

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               Restart = "always";

     

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               PrivateTmp = true;

     

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               WorkingDirectory = /tmp;

     

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               ExecStart = ''

     

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                 ${pkgs.prometheus-collectd-exporter}/bin/collectd_exporter \

     

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                   -log.format ${cfg.logFormat} \

     

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                   -log.level ${cfg.logLevel} \

     

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                   -web.listen-address ${optionalString (cfg.listenAddress != null) cfg.listenAddress}:${toString cfg.port} \

     

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                   ${collectSettingsArgs} \

     

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                   ${concatStringsSep " " cfg.extraFlags}

     

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               '';

     

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             };

     

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           };

     

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         };

     

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       }