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nixpkgs/nixos/modules/services/logging/heartbeat.nix
2017-07-02 10:45:59 +02:00

73 lines
1.7 KiB
Nix

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