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nixpkgs/nixos/modules/services/monitoring/prometheus/exporters/postfix.nix

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Nix

{ config, lib, pkgs }:
with lib;
let
cfg = config.services.prometheus.exporters.postfix;
in
{
port = 9154;
extraOpts = {
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/spool/postfix/public/showq";
example = "/var/lib/postfix/queue/public/showq";
description = ''
Path where Postfix places it's showq socket.
'';
};
};
serviceOpts = {
serviceConfig = {
ExecStart = ''
${pkgs.prometheus-postfix-exporter}/bin/postfix_exporter \
--web.listen-address ${cfg.listenAddress}:${toString cfg.port} \
--web.telemetry-path ${cfg.telemetryPath} \
${concatStringsSep " \\\n " cfg.extraFlags}
'';
};
};
}