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{ config, pkgs, lib, ... }:
with lib;
let
cfg = config.services.kthxbye;
in
{
options.services.kthxbye = {
enable = mkEnableOption (mdDoc "kthxbye alert acknowledgement management daemon");
package = mkOption {
type = types.package;
default = pkgs.kthxbye;
defaultText = literalExpression "pkgs.kthxbye";
description = mdDoc ''
The kthxbye package that should be used.
'';
};
openFirewall = mkOption {
type = types.bool;
default = false;
description = mdDoc ''
Whether to open ports in the firewall needed for the daemon to function.
'';
};
extraOptions = mkOption {
type = with types; listOf str;
default = [];
description = mdDoc ''
Extra command line options.
Documentation can be found [here](https://github.com/prymitive/kthxbye/blob/main/README.md).
'';
example = literalExpression ''
[
"-extend-with-prefix 'ACK!'"
];
'';
};
alertmanager = {
timeout = mkOption {
type = types.str;
default = "1m0s";
description = mdDoc ''
Alertmanager request timeout duration in the [time.Duration](https://pkg.go.dev/time#ParseDuration) format.
'';
example = "30s";
};
uri = mkOption {
type = types.str;
default = "http://localhost:9093";
description = mdDoc ''
Alertmanager URI to use.
'';
example = "https://alertmanager.example.com";
};
};
extendBy = mkOption {
type = types.str;
default = "15m0s";
description = mdDoc ''
Extend silences by adding DURATION seconds.
DURATION should be provided in the [time.Duration](https://pkg.go.dev/time#ParseDuration) format.
'';
example = "6h0m0s";
};
extendIfExpiringIn = mkOption {
type = types.str;
default = "5m0s";
description = mdDoc ''
Extend silences that are about to expire in the next DURATION seconds.
DURATION should be provided in the [time.Duration](https://pkg.go.dev/time#ParseDuration) format.
'';
example = "1m0s";
};
extendWithPrefix = mkOption {
type = types.str;
default = "ACK!";
description = mdDoc ''
Extend silences with comment starting with PREFIX string.
'';
example = "!perma-silence";
};
interval = mkOption {
type = types.str;
default = "45s";
description = mdDoc ''
Silence check interval duration in the [time.Duration](https://pkg.go.dev/time#ParseDuration) format.
'';
example = "30s";
};
listenAddress = mkOption {
type = types.str;
default = "0.0.0.0";
description = mdDoc ''
The address to listen on for HTTP requests.
'';
example = "127.0.0.1";
};
port = mkOption {
type = types.port;
default = 8080;
description = mdDoc ''
The port to listen on for HTTP requests.
'';
};
logJSON = mkOption {
type = types.bool;
default = false;
description = mdDoc ''
Format logged messages as JSON.
'';
};
maxDuration = mkOption {
type = with types; nullOr str;
default = null;
description = mdDoc ''
Maximum duration of a silence, it won't be extended anymore after reaching it.
Duration should be provided in the [time.Duration](https://pkg.go.dev/time#ParseDuration) format.
'';
example = "30d";
};
};
config = mkIf cfg.enable {
systemd.services.kthxbye = {
description = "kthxbye Alertmanager ack management daemon";
wantedBy = [ "multi-user.target" ];
script = ''
${cfg.package}/bin/kthxbye \
-alertmanager.timeout ${cfg.alertmanager.timeout} \
-alertmanager.uri ${cfg.alertmanager.uri} \
-extend-by ${cfg.extendBy} \
-extend-if-expiring-in ${cfg.extendIfExpiringIn} \
-extend-with-prefix ${cfg.extendWithPrefix} \
-interval ${cfg.interval} \
-listen ${cfg.listenAddress}:${toString cfg.port} \
${optionalString cfg.logJSON "-log-json"} \
${optionalString (cfg.maxDuration != null) "-max-duration ${cfg.maxDuration}"} \
${concatStringsSep " " cfg.extraOptions}
'';
serviceConfig = {
Type = "simple";
DynamicUser = true;
Restart = "on-failure";
};
};
networking.firewall.allowedTCPPorts = mkIf cfg.openFirewall [ cfg.port ];
};
}
|