gitlab-org--gitlab-foss/lib/gitlab/metrics/sidekiq_metrics_exporter.rb

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# frozen_string_literal: true
require 'webrick'
require 'prometheus/client/rack/exporter'
module Gitlab
module Metrics
class SidekiqMetricsExporter < Daemon
LOG_FILENAME = File.join(Rails.root, 'log', 'sidekiq_exporter.log')
def enabled?
::Gitlab::Metrics.metrics_folder_present? && settings.enabled
end
def settings
Settings.monitoring.sidekiq_exporter
end
private
attr_reader :server
def start_working
logger = WEBrick::Log.new(LOG_FILENAME)
access_log = [
[logger, WEBrick::AccessLog::COMBINED_LOG_FORMAT]
]
@server = ::WEBrick::HTTPServer.new(Port: settings.port, BindAddress: settings.address,
Logger: logger, AccessLog: access_log)
server.mount "/", Rack::Handler::WEBrick, rack_app
server.start
end
def stop_working
server.shutdown if server
@server = nil
end
def rack_app
Rack::Builder.app do
use Rack::Deflater
use ::Prometheus::Client::Rack::Exporter
run -> (env) { [404, {}, ['']] }
end
end
end
end
end