121 lines
3.1 KiB
Nix
121 lines
3.1 KiB
Nix
{ config, pkgs, lib, ... }:
|
|
with lib;
|
|
let
|
|
cfg = config.services.karma;
|
|
yaml = pkgs.formats.yaml { };
|
|
in
|
|
{
|
|
options.services.karma = {
|
|
enable = mkEnableOption (mdDoc "the Karma dashboard service");
|
|
|
|
package = mkPackageOption pkgs "karma" { };
|
|
|
|
configFile = mkOption {
|
|
type = types.path;
|
|
default = yaml.generate "karma.yaml" cfg.settings;
|
|
defaultText = "A configuration file generated from the provided nix attributes settings option.";
|
|
description = mdDoc ''
|
|
A YAML config file which can be used to configure karma instead of the nix-generated file.
|
|
'';
|
|
example = "/etc/karma/karma.conf";
|
|
};
|
|
|
|
environment = mkOption {
|
|
type = with types; attrsOf str;
|
|
default = {};
|
|
description = mdDoc ''
|
|
Additional environment variables to provide to karma.
|
|
'';
|
|
example = {
|
|
ALERTMANAGER_URI = "https://alertmanager.example.com";
|
|
ALERTMANAGER_NAME= "single";
|
|
};
|
|
};
|
|
|
|
openFirewall = mkOption {
|
|
type = types.bool;
|
|
default = false;
|
|
description = mdDoc ''
|
|
Whether to open ports in the firewall needed for karma to function.
|
|
'';
|
|
};
|
|
|
|
extraOptions = mkOption {
|
|
type = with types; listOf str;
|
|
default = [];
|
|
description = mdDoc ''
|
|
Extra command line options.
|
|
'';
|
|
example = [
|
|
"--alertmanager.timeout 10s"
|
|
];
|
|
};
|
|
|
|
settings = mkOption {
|
|
type = types.submodule {
|
|
freeformType = yaml.type;
|
|
|
|
options.listen = {
|
|
address = mkOption {
|
|
type = types.str;
|
|
default = "127.0.0.1";
|
|
description = mdDoc ''
|
|
Hostname or IP to listen on.
|
|
'';
|
|
example = "[::]";
|
|
};
|
|
|
|
port = mkOption {
|
|
type = types.port;
|
|
default = 8080;
|
|
description = mdDoc ''
|
|
HTTP port to listen on.
|
|
'';
|
|
example = 8182;
|
|
};
|
|
};
|
|
};
|
|
default = {
|
|
listen = {
|
|
address = "127.0.0.1";
|
|
};
|
|
};
|
|
description = mdDoc ''
|
|
Karma dashboard configuration as nix attributes.
|
|
|
|
Reference: <https://github.com/prymitive/karma/blob/main/docs/CONFIGURATION.md>
|
|
'';
|
|
example = {
|
|
listen = {
|
|
address = "192.168.1.4";
|
|
port = "8000";
|
|
prefix = "/dashboard";
|
|
};
|
|
alertmanager = {
|
|
interval = "15s";
|
|
servers = [
|
|
{
|
|
name = "prod";
|
|
uri = "http://alertmanager.example.com";
|
|
}
|
|
];
|
|
};
|
|
};
|
|
};
|
|
};
|
|
|
|
config = mkIf cfg.enable {
|
|
systemd.services.karma = {
|
|
description = "Alert dashboard for Prometheus Alertmanager";
|
|
wantedBy = [ "multi-user.target" ];
|
|
environment = cfg.environment;
|
|
serviceConfig = {
|
|
Type = "simple";
|
|
DynamicUser = true;
|
|
Restart = "on-failure";
|
|
ExecStart = "${pkgs.karma}/bin/karma --config.file ${cfg.configFile} ${concatStringsSep " " cfg.extraOptions}";
|
|
};
|
|
};
|
|
networking.firewall.allowedTCPPorts = mkIf cfg.openFirewall [ cfg.settings.listen.port ];
|
|
};
|
|
}
|