101 lines
3.6 KiB
Nix
101 lines
3.6 KiB
Nix
{ config, pkgs, lib, ... }:
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let
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cfg = config.services.vmagent;
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settingsFormat = pkgs.formats.json { };
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in {
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imports = [
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(lib.mkRemovedOptionModule [ "services" "vmagent" "dataDir" ] "dataDir has been deprecated in favor of systemd provided CacheDirectory")
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(lib.mkRemovedOptionModule [ "services" "vmagent" "user" ] "user has been deprecated in favor of systemd DynamicUser")
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(lib.mkRemovedOptionModule [ "services" "vmagent" "group" ] "group has been deprecated in favor of systemd DynamicUser")
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(lib.mkRenamedOptionModule [ "services" "vmagent" "remoteWriteUrl" ] [ "services" "vmagent" "remoteWrite" "url" ])
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];
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options.services.vmagent = {
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enable = lib.mkEnableOption "vmagent";
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package = lib.mkPackageOption pkgs "vmagent" { };
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remoteWrite = {
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url = lib.mkOption {
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default = null;
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type = lib.types.nullOr lib.types.str;
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description = ''
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Endpoint for prometheus compatible remote_write
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'';
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};
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basicAuthUsername = lib.mkOption {
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default = null;
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type = lib.types.nullOr lib.types.str;
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description = ''
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Basic Auth username used to connect to remote_write endpoint
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'';
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};
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basicAuthPasswordFile = lib.mkOption {
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default = null;
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type = lib.types.nullOr lib.types.str;
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description = ''
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File that contains the Basic Auth password used to connect to remote_write endpoint
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'';
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};
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};
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prometheusConfig = lib.mkOption {
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type = lib.types.submodule { freeformType = settingsFormat.type; };
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description = ''
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Config for prometheus style metrics
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'';
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};
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openFirewall = lib.mkOption {
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type = lib.types.bool;
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default = false;
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description = ''
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Whether to open the firewall for the default ports.
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'';
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};
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extraArgs = lib.mkOption {
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type = lib.types.listOf lib.types.str;
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default = [];
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description = ''
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Extra args to pass to `vmagent`. See the docs:
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<https://docs.victoriametrics.com/vmagent.html#advanced-usage>
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or {command}`vmagent -help` for more information.
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'';
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};
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};
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config = lib.mkIf cfg.enable {
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networking.firewall.allowedTCPPorts = lib.mkIf cfg.openFirewall [ 8429 ];
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systemd.services.vmagent = let
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prometheusConfig = settingsFormat.generate "prometheusConfig.yaml" cfg.prometheusConfig;
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startCommandLine = lib.concatStringsSep " " ([
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"${cfg.package}/bin/vmagent"
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"-promscrape.config=${prometheusConfig}"
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] ++ cfg.extraArgs
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++ lib.optionals (cfg.remoteWrite.url != null) [
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"-remoteWrite.url=${cfg.remoteWrite.url}"
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"-remoteWrite.tmpDataPath=%C/vmagent/remote_write_tmp"
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] ++ lib.optional (cfg.remoteWrite.basicAuthUsername != null) "-remoteWrite.basicAuth.username=${cfg.remoteWrite.basicAuthUsername}"
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++ lib.optional (cfg.remoteWrite.basicAuthPasswordFile != null) "-remoteWrite.basicAuth.passwordFile=\${CREDENTIALS_DIRECTORY}/remote_write_basic_auth_password");
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in {
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wantedBy = [ "multi-user.target" ];
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after = [ "network.target" ];
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description = "vmagent system service";
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serviceConfig = {
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DynamicUser = true;
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User = "vmagent";
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Group = "vmagent";
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Type = "simple";
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Restart = "on-failure";
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CacheDirectory = "vmagent";
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ExecStart = startCommandLine;
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LoadCredential = lib.optional (cfg.remoteWrite.basicAuthPasswordFile != null) [
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"remote_write_basic_auth_password:${cfg.remoteWrite.basicAuthPasswordFile}"
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];
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};
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};
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};
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}
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