You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
100 lines
3.3 KiB
100 lines
3.3 KiB
{ config, lib, pkgs, options }:
|
|
|
|
with lib;
|
|
|
|
let
|
|
cfg = config.services.prometheus.exporters.postfix;
|
|
in
|
|
{
|
|
port = 9154;
|
|
extraOpts = {
|
|
group = mkOption {
|
|
type = types.str;
|
|
description = ''
|
|
Group under which the postfix exporter shall be run.
|
|
It should match the group that is allowed to access the
|
|
<literal>showq</literal> socket in the <literal>queue/public/</literal> directory.
|
|
Defaults to <literal>services.postfix.setgidGroup</literal> when postfix is enabled.
|
|
'';
|
|
};
|
|
telemetryPath = mkOption {
|
|
type = types.str;
|
|
default = "/metrics";
|
|
description = ''
|
|
Path under which to expose metrics.
|
|
'';
|
|
};
|
|
logfilePath = mkOption {
|
|
type = types.path;
|
|
default = "/var/log/postfix_exporter_input.log";
|
|
example = "/var/log/mail.log";
|
|
description = ''
|
|
Path where Postfix writes log entries.
|
|
This file will be truncated by this exporter!
|
|
'';
|
|
};
|
|
showqPath = mkOption {
|
|
type = types.path;
|
|
default = "/var/lib/postfix/queue/public/showq";
|
|
example = "/var/spool/postfix/public/showq";
|
|
description = ''
|
|
Path where Postfix places its showq socket.
|
|
'';
|
|
};
|
|
systemd = {
|
|
enable = mkOption {
|
|
type = types.bool;
|
|
default = true;
|
|
description = ''
|
|
Whether to enable reading metrics from the systemd journal instead of from a logfile
|
|
'';
|
|
};
|
|
unit = mkOption {
|
|
type = types.str;
|
|
default = "postfix.service";
|
|
description = ''
|
|
Name of the postfix systemd unit.
|
|
'';
|
|
};
|
|
slice = mkOption {
|
|
type = types.nullOr types.str;
|
|
default = null;
|
|
description = ''
|
|
Name of the postfix systemd slice.
|
|
This overrides the <option>systemd.unit</option>.
|
|
'';
|
|
};
|
|
journalPath = mkOption {
|
|
type = types.nullOr types.path;
|
|
default = null;
|
|
description = ''
|
|
Path to the systemd journal.
|
|
'';
|
|
};
|
|
};
|
|
};
|
|
serviceOpts = {
|
|
after = mkIf cfg.systemd.enable [ cfg.systemd.unit ];
|
|
serviceConfig = {
|
|
DynamicUser = false;
|
|
# By default, each prometheus exporter only gets AF_INET & AF_INET6,
|
|
# but AF_UNIX is needed to read from the `showq`-socket.
|
|
RestrictAddressFamilies = [ "AF_UNIX" ];
|
|
SupplementaryGroups = mkIf cfg.systemd.enable [ "systemd-journal" ];
|
|
ExecStart = ''
|
|
${pkgs.prometheus-postfix-exporter}/bin/postfix_exporter \
|
|
--web.listen-address ${cfg.listenAddress}:${toString cfg.port} \
|
|
--web.telemetry-path ${cfg.telemetryPath} \
|
|
--postfix.showq_path ${escapeShellArg cfg.showqPath} \
|
|
${concatStringsSep " \\\n " (cfg.extraFlags
|
|
++ optional cfg.systemd.enable "--systemd.enable"
|
|
++ optional cfg.systemd.enable (if cfg.systemd.slice != null
|
|
then "--systemd.slice ${cfg.systemd.slice}"
|
|
else "--systemd.unit ${cfg.systemd.unit}")
|
|
++ optional (cfg.systemd.enable && (cfg.systemd.journalPath != null))
|
|
"--systemd.journal_path ${escapeShellArg cfg.systemd.journalPath}"
|
|
++ optional (!cfg.systemd.enable) "--postfix.logfile_path ${escapeShellArg cfg.logfilePath}")}
|
|
'';
|
|
};
|
|
};
|
|
}
|
|
|