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139 lines
2.9 KiB
Nix
139 lines
2.9 KiB
Nix
{ config, pkgs, lib, ... }:
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with lib;
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let
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cfg = config.services.collectd;
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conf = pkgs.writeText "collectd.conf" ''
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BaseDir "${cfg.dataDir}"
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AutoLoadPlugin ${boolToString cfg.autoLoadPlugin}
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Hostname "${config.networking.hostName}"
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LoadPlugin syslog
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<Plugin "syslog">
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LogLevel "info"
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NotifyLevel "OKAY"
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</Plugin>
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${concatStrings (mapAttrsToList (plugin: pluginConfig: ''
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LoadPlugin ${plugin}
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<Plugin "${plugin}">
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${pluginConfig}
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</Plugin>
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'') cfg.plugins)}
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${concatMapStrings (f: ''
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Include "${f}"
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'') cfg.include}
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${cfg.extraConfig}
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'';
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package =
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if cfg.buildMinimalPackage
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then minimalPackage
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else cfg.package;
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minimalPackage = cfg.package.override {
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enabledPlugins = [ "syslog" ] ++ builtins.attrNames cfg.plugins;
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};
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in {
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options.services.collectd = with types; {
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enable = mkEnableOption "collectd agent";
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package = mkOption {
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default = pkgs.collectd;
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defaultText = "pkgs.collectd";
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description = ''
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Which collectd package to use.
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'';
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type = types.package;
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};
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buildMinimalPackage = mkOption {
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default = false;
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description = ''
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Build a minimal collectd package with only the configured `services.collectd.plugins`
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'';
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type = types.bool;
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};
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user = mkOption {
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default = "collectd";
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description = ''
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User under which to run collectd.
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'';
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type = nullOr str;
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};
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dataDir = mkOption {
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default = "/var/lib/collectd";
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description = ''
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Data directory for collectd agent.
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'';
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type = path;
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};
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autoLoadPlugin = mkOption {
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default = false;
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description = ''
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Enable plugin autoloading.
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'';
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type = bool;
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};
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include = mkOption {
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default = [];
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description = ''
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Additional paths to load config from.
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'';
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type = listOf str;
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};
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plugins = mkOption {
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default = {};
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example = { cpu = ""; memory = ""; network = "Server 192.168.1.1 25826"; };
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description = ''
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Attribute set of plugin names to plugin config segments
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'';
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type = types.attrsOf types.str;
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};
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extraConfig = mkOption {
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default = "";
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description = ''
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Extra configuration for collectd.
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'';
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type = lines;
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};
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};
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config = mkIf cfg.enable {
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systemd.tmpfiles.rules = [
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"d '${cfg.dataDir}' - ${cfg.user} - - -"
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];
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systemd.services.collectd = {
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description = "Collectd Monitoring Agent";
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after = [ "network.target" ];
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wantedBy = [ "multi-user.target" ];
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serviceConfig = {
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ExecStart = "${package}/sbin/collectd -C ${conf} -f";
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User = cfg.user;
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Restart = "on-failure";
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RestartSec = 3;
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};
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};
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users.users = optionalAttrs (cfg.user == "collectd") {
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collectd = {
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isSystemUser = true;
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};
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};
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};
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}
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