nixpkgs/nixos/modules/services/monitoring/prometheus/exporters/collectd.nix
WilliButz f4d03b5c9c
nixos/prometheus-exporters: rewrite and restructure
- prometheus exporters are now configured with
  `services.prometheus.exporters.<name>`
- the exporters are now defined by attribute sets
  from which the options for each exporter are generated
- most of the exporter definitions are used unchanged,
  except for some changes that should't have any impact
  on the functionality.
2018-03-22 14:46:17 +01:00

79 lines
2.1 KiB
Nix

{ config, lib, pkgs }:
with lib;
let
cfg = config.services.prometheus.exporters.collectd;
in
{
port = 9103;
extraOpts = {
collectdBinary = {
enable = mkEnableOption "collectd binary protocol receiver";
authFile = mkOption {
default = null;
type = types.nullOr types.path;
description = "File mapping user names to pre-shared keys (passwords).";
};
port = mkOption {
type = types.int;
default = 25826;
description = ''Network address on which to accept collectd binary network packets.'';
};
listenAddress = mkOption {
type = types.str;
default = "0.0.0.0";
description = ''
Address to listen on for binary network packets.
'';
};
securityLevel = mkOption {
type = types.enum ["None" "Sign" "Encrypt"];
default = "None";
description = ''
Minimum required security level for accepted packets.
'';
};
};
logFormat = mkOption {
type = types.str;
default = "logger:stderr";
example = "logger:syslog?appname=bob&local=7 or logger:stdout?json=true";
description = ''
Set the log target and format.
'';
};
logLevel = mkOption {
type = types.enum ["debug" "info" "warn" "error" "fatal"];
default = "info";
description = ''
Only log messages with the given severity or above.
'';
};
};
serviceOpts = let
collectSettingsArgs = if (cfg.collectdBinary.enable) then ''
-collectd.listen-address ${cfg.collectdBinary.listenAddress}:${toString cfg.collectdBinary.port} \
-collectd.security-level ${cfg.collectdBinary.securityLevel} \
'' else "";
in {
serviceConfig = {
DynamicUser = true;
ExecStart = ''
${pkgs.prometheus-collectd-exporter}/bin/collectd_exporter \
-log.format ${cfg.logFormat} \
-log.level ${cfg.logLevel} \
-web.listen-address ${cfg.listenAddress}:${toString cfg.port} \
${collectSettingsArgs} \
${concatStringsSep " \\\n " cfg.extraFlags}
'';
};
};
}