diff options
Diffstat (limited to 'nixos/modules/services/monitoring/collectd.nix')
-rw-r--r-- | nixos/modules/services/monitoring/collectd.nix | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/nixos/modules/services/monitoring/collectd.nix b/nixos/modules/services/monitoring/collectd.nix new file mode 100644 index 00000000000..717c2c48168 --- /dev/null +++ b/nixos/modules/services/monitoring/collectd.nix @@ -0,0 +1,116 @@ +{ config, pkgs, lib, ... }: + +with lib; + +let + cfg = config.services.collectd; + + conf = pkgs.writeText "collectd.conf" '' + BaseDir "${cfg.dataDir}" + PIDFile "${cfg.pidFile}" + AutoLoadPlugin ${if cfg.autoLoadPlugin then "true" else "false"} + Hostname ${config.networking.hostName} + + LoadPlugin syslog + <Plugin "syslog"> + LogLevel "info" + NotifyLevel "OKAY" + </Plugin> + + ${concatMapStrings (f: '' + Include "${f}" + '') cfg.include} + + ${cfg.extraConfig} + ''; + +in { + options.services.collectd = with types; { + enable = mkOption { + default = false; + description = '' + Whether to enable collectd agent. + ''; + type = bool; + }; + + user = mkOption { + default = "collectd"; + description = '' + User under which to run collectd. + ''; + type = nullOr str; + }; + + dataDir = mkOption { + default = "/var/lib/collectd"; + description = '' + Data directory for collectd agent. + ''; + type = path; + }; + + pidFile = mkOption { + default = "/var/run/collectd.pid"; + description = '' + Location of collectd pid file. + ''; + type = path; + }; + + autoLoadPlugin = mkOption { + default = false; + description = '' + Enable plugin autoloading. + ''; + type = bool; + }; + + include = mkOption { + default = []; + description = '' + Additional paths to load config from. + ''; + type = listOf str; + }; + + extraConfig = mkOption { + default = ""; + description = '' + Extra configuration for collectd. + ''; + type = lines; + }; + + }; + + config = mkIf cfg.enable { + systemd.services.collectd = { + description = "Collectd Monitoring Agent"; + after = [ "network.target" ]; + wantedBy = [ "multi-user.target" ]; + + serviceConfig = { + ExecStart = "${pkgs.collectd}/sbin/collectd -C ${conf} -P ${cfg.pidFile}"; + Type = "forking"; + PIDFile = cfg.pidFile; + User = optional (cfg.user!="root") cfg.user; + PermissionsStartOnly = true; + }; + + preStart = '' + mkdir -m 0700 -p ${cfg.dataDir} + install -D /dev/null ${cfg.pidFile} + if [ "$(id -u)" = 0 ]; then + chown -R ${cfg.user} ${cfg.dataDir}; + chown ${cfg.user} ${cfg.pidFile} + fi + ''; + }; + + users.extraUsers = optional (cfg.user == "collectd") { + name = "collectd"; + uid = config.ids.uids.collectd; + }; + }; +} |