63 lines
1.5 KiB
Nix
63 lines
1.5 KiB
Nix
{ config, lib, pkgs, options, ... }:
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let
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cfg = config.services.prometheus.exporters.knot;
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inherit (lib)
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mkOption
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types
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literalExpression
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concatStringsSep
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;
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in {
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port = 9433;
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extraOpts = {
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knotLibraryPath = mkOption {
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type = types.nullOr types.str;
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default = null;
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example = literalExpression ''"''${pkgs.knot-dns.out}/lib/libknot.so"'';
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description = ''
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Path to the library of `knot-dns`.
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'';
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};
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knotSocketPath = mkOption {
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type = types.str;
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default = "/run/knot/knot.sock";
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description = ''
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Socket path of {manpage}`knotd(8)`.
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'';
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};
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knotSocketTimeout = mkOption {
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type = types.ints.positive;
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default = 2000;
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description = ''
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Timeout in seconds.
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'';
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};
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};
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serviceOpts = {
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path = with pkgs; [
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procps
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];
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serviceConfig = {
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ExecStart = ''
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${pkgs.prometheus-knot-exporter}/bin/knot-exporter \
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--web-listen-addr ${cfg.listenAddress} \
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--web-listen-port ${toString cfg.port} \
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--knot-socket-path ${cfg.knotSocketPath} \
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--knot-socket-timeout ${toString cfg.knotSocketTimeout} \
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${lib.optionalString (cfg.knotLibraryPath != null) "--knot-library-path ${cfg.knotLibraryPath}"} \
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${concatStringsSep " \\\n " cfg.extraFlags}
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'';
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SupplementaryGroups = [
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"knot"
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];
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RestrictAddressFamilies = [
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# Need AF_UNIX to collect data
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"AF_UNIX"
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];
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};
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};
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}
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