145 lines
3.7 KiB
Nix
145 lines
3.7 KiB
Nix
{ config, lib, pkgs, ... }:
|
|
|
|
with lib;
|
|
|
|
let
|
|
cfg = config.services.logstash;
|
|
pluginPath = lib.concatStringsSep ":" cfg.plugins;
|
|
havePluginPath = lib.length cfg.plugins > 0;
|
|
ops = lib.optionalString;
|
|
|
|
in
|
|
|
|
{
|
|
###### interface
|
|
|
|
options = {
|
|
|
|
services.logstash = {
|
|
|
|
enable = mkOption {
|
|
type = types.bool;
|
|
default = false;
|
|
description = "Enable logstash.";
|
|
};
|
|
|
|
package = mkOption {
|
|
type = types.package;
|
|
default = pkgs.logstash;
|
|
example = literalExample "pkgs.logstash";
|
|
description = "Logstash package to use.";
|
|
};
|
|
|
|
plugins = mkOption {
|
|
type = types.listOf types.path;
|
|
default = [ ];
|
|
example = literalExample "[ pkgs.logstash-contrib ]";
|
|
description = "The paths to find other logstash plugins in.";
|
|
};
|
|
|
|
watchdogTimeout = mkOption {
|
|
type = types.int;
|
|
default = 10;
|
|
description = "Set watchdog timeout value in seconds.";
|
|
};
|
|
|
|
filterWorkers = mkOption {
|
|
type = types.int;
|
|
default = 1;
|
|
description = "The quantity of filter workers to run.";
|
|
};
|
|
|
|
enableWeb = mkOption {
|
|
type = types.bool;
|
|
default = false;
|
|
description = "Enable the logstash web interface.";
|
|
};
|
|
|
|
address = mkOption {
|
|
type = types.str;
|
|
default = "0.0.0.0";
|
|
description = "Address on which to start webserver.";
|
|
};
|
|
|
|
port = mkOption {
|
|
type = types.str;
|
|
default = "9292";
|
|
description = "Port on which to start webserver.";
|
|
};
|
|
|
|
inputConfig = mkOption {
|
|
type = types.lines;
|
|
default = ''stdin { type => "example" }'';
|
|
description = "Logstash input configuration.";
|
|
example = ''
|
|
# Read from journal
|
|
pipe {
|
|
command => "${pkgs.systemd}/bin/journalctl -f -o json"
|
|
type => "syslog" codec => json {}
|
|
}
|
|
'';
|
|
};
|
|
|
|
filterConfig = mkOption {
|
|
type = types.lines;
|
|
default = ''noop {}'';
|
|
description = "logstash filter configuration.";
|
|
example = ''
|
|
if [type] == "syslog" {
|
|
# Keep only relevant systemd fields
|
|
# http://www.freedesktop.org/software/systemd/man/systemd.journal-fields.html
|
|
prune {
|
|
whitelist_names => [
|
|
"type", "@timestamp", "@version",
|
|
"MESSAGE", "PRIORITY", "SYSLOG_FACILITY",
|
|
]
|
|
}
|
|
}
|
|
'';
|
|
};
|
|
|
|
outputConfig = mkOption {
|
|
type = types.lines;
|
|
default = ''stdout { debug => true debug_format => "json"}'';
|
|
description = "Logstash output configuration.";
|
|
example = ''
|
|
redis { host => "localhost" data_type => "list" key => "logstash" codec => json }
|
|
elasticsearch { embedded => true }
|
|
'';
|
|
};
|
|
|
|
};
|
|
};
|
|
|
|
|
|
###### implementation
|
|
|
|
config = mkIf cfg.enable {
|
|
systemd.services.logstash = with pkgs; {
|
|
description = "Logstash Daemon";
|
|
wantedBy = [ "multi-user.target" ];
|
|
environment = { JAVA_HOME = jre; };
|
|
serviceConfig = {
|
|
ExecStart =
|
|
"${cfg.package}/bin/logstash agent " +
|
|
"-w ${toString cfg.filterWorkers} " +
|
|
ops havePluginPath "--pluginpath ${pluginPath} " +
|
|
"--watchdog-timeout ${toString cfg.watchdogTimeout} " +
|
|
"-f ${writeText "logstash.conf" ''
|
|
input {
|
|
${cfg.inputConfig}
|
|
}
|
|
|
|
filter {
|
|
${cfg.filterConfig}
|
|
}
|
|
|
|
output {
|
|
${cfg.outputConfig}
|
|
}
|
|
''} " +
|
|
ops cfg.enableWeb "-- web -a ${cfg.address} -p ${cfg.port}";
|
|
};
|
|
};
|
|
};
|
|
}
|