123 lines
3.3 KiB
Nix
123 lines
3.3 KiB
Nix
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{ config, pkgs, lib, ... }:
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with lib;
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let
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cfg = config.clerie.anycast_healthchecker;
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configFile = pkgs.writeText "anycast-healthchecker.conf" ''
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[DEFAULT]
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interface = lo
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[daemon]
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pidfile = /run/anycast-healthchecker/anycast-healthchecker.pid
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ipv4 = true
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ipv6 = true
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bird_conf = /var/lib/anycast-healthchecker/anycast-prefixes.conf
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bird6_conf = /var/lib/anycast-healthchecker/anycast-prefixes6.conf
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bird_variable = ACAST_PS_ADVERTISE
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bird6_variable = ACAST6_PS_ADVERTISE
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bird_reconfigure_cmd = birdc configure
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bird6_reconfigure_cmd = birdc configure
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dummy_ip_prefix = 10.189.200.255/32
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dummy_ip6_prefix = 2001:db8::1/128
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bird_keep_changes = false
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bird6_keep_changes = false
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bird_changes_counter = 128
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bird6_changes_counter = 128
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purge_ip_prefixes = false
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loglevel = debug
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log_maxbytes = 104857600
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log_backups = 8
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json_stdout = false
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json_log_file = false
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json_log_server = false
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'';
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checksDir = pkgs.writeTextDir "checks.conf" (
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concatStringsSep "\n" (
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mapAttrsToList (
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name: check: ''
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[${name}]
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ip_prefix = ${check.ip_prefix}
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check_cmd = ${check.cmd}
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'' + (
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concatStringsSep "\n" (
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optional (check.timeout != null) "check_timeout = ${toString check.timeout}"
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++ optional (check.rise != null) "check_rise = ${toString check.rise}"
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++ optional (check.fail != null) "check_fail = ${toString check.fail}"
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++ optional (check.interval != null) "check_interval = ${toString check.interval}"
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)
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)
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) cfg.checks
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)
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);
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checkOpts = { config, ... }@moduleAttrs: {
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options = {
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enable = mkOption {
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type = types.bool;
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default = true;
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};
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timeout = mkOption {
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type = with types; nullOr int;
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default = null;
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};
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rise = mkOption {
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type = with types; nullOr int;
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default = null;
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};
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fail = mkOption {
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type = with types; nullOr int;
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default = null;
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};
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interval = mkOption {
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type = with types; nullOr int;
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default = null;
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};
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ip_prefix = mkOption {
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type = types.str;
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};
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cmd = mkOption {
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type = types.str;
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default = "${pkgs.curl}/bin/curl --fail --silent http://${moduleAttrs.config.ip_prefix}";
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};
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};
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};
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in {
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options = {
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clerie.anycast_healthchecker = {
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enable = mkEnableOption "anycast healthchecker";
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checks = mkOption {
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type = with types; attrsOf (submodule checkOpts);
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};
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};
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};
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config = mkIf cfg.enable {
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systemd.services.anycast_healthchecker = {
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wantedBy = [ "multi-user.target" ];
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serviceConfig = {
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RuntimeDirectory = "anycast-healthchecker";
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StateDirectory = "anycast-healthchecker";
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User = "bird2";
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Group = "bird2";
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ExecStart = "${pkgs.anycast_healthchecker}/bin/anycast-healthchecker -f ${configFile} -d ${checksDir}";
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};
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path = with pkgs; [ bird2 ];
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};
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};
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}
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