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{ config, lib, pkgs, options }:
with lib;
let
cfg = config.services.prometheus.exporters.knot;
in {
port = 9433;
extraOpts = {
knotLibraryPath = mkOption {
type = types.str;
default = "${pkgs.knot-dns.out}/lib/libknot.so";
defaultText = "\${pkgs.knot-dns}/lib/libknot.so";
description = ''
Path to the library of <package>knot-dns</package>.
'';
};
knotSocketPath = mkOption {
type = types.str;
default = "/run/knot/knot.sock";
description = ''
Socket path of <citerefentry><refentrytitle>knotd</refentrytitle>
<manvolnum>8</manvolnum></citerefentry>.
'';
};
knotSocketTimeout = mkOption {
type = types.int;
default = 2000;
description = ''
Timeout in seconds.
'';
};
};
serviceOpts = {
serviceConfig = {
ExecStart = ''
${pkgs.prometheus-knot-exporter}/bin/knot_exporter \
--web-listen-addr ${cfg.listenAddress} \
--web-listen-port ${toString cfg.port} \
--knot-library-path ${cfg.knotLibraryPath} \
--knot-socket-path ${cfg.knotSocketPath} \
--knot-socket-timeout ${toString cfg.knotSocketTimeout} \
${concatStringsSep " \\\n " cfg.extraFlags}
'';
SupplementaryGroups = [ "knot" ];
};
};
}
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