75 lines
1.8 KiB
Nix
75 lines
1.8 KiB
Nix
{ config, lib, pkgs, ... }:
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let
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cfg = config.services.heartbeat;
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heartbeatYml = pkgs.writeText "heartbeat.yml" ''
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name: ${cfg.name}
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tags: ${builtins.toJSON cfg.tags}
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${cfg.extraConfig}
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'';
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in
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{
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options = {
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services.heartbeat = {
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enable = lib.mkEnableOption "heartbeat, uptime monitoring";
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package = lib.mkPackageOption pkgs "heartbeat" {
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example = "heartbeat7";
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};
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name = lib.mkOption {
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type = lib.types.str;
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default = "heartbeat";
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description = "Name of the beat";
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};
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tags = lib.mkOption {
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type = lib.types.listOf lib.types.str;
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default = [];
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description = "Tags to place on the shipped log messages";
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};
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stateDir = lib.mkOption {
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type = lib.types.str;
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default = "/var/lib/heartbeat";
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description = "The state directory. heartbeat's own logs and other data are stored here.";
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};
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extraConfig = lib.mkOption {
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type = lib.types.lines;
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default = ''
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heartbeat.monitors:
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- type: http
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urls: ["http://localhost:9200"]
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schedule: '@every 10s'
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'';
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description = "Any other configuration options you want to add";
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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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systemd.tmpfiles.rules = [
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"d '${cfg.stateDir}' - nobody nogroup - -"
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];
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systemd.services.heartbeat = with pkgs; {
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description = "heartbeat log shipper";
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wantedBy = [ "multi-user.target" ];
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preStart = ''
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mkdir -p "${cfg.stateDir}"/{data,logs}
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'';
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serviceConfig = {
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User = "nobody";
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AmbientCapabilities = "cap_net_raw";
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ExecStart = "${cfg.package}/bin/heartbeat -c \"${heartbeatYml}\" -path.data \"${cfg.stateDir}/data\" -path.logs \"${cfg.stateDir}/logs\"";
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};
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};
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};
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}
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