78 lines
1.9 KiB
Ruby
78 lines
1.9 KiB
Ruby
# frozen_string_literal: true
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require 'spec_helper'
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require_relative '../../../metrics_server/metrics_server'
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# End-to-end tests for the metrics server process we use to serve metrics
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# from forking applications (Sidekiq, Puma) to the Prometheus scraper.
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RSpec.describe 'bin/metrics-server', :aggregate_failures do
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let(:config_file) { Tempfile.new('gitlab.yml') }
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let(:config) do
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{
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'test' => {
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'monitoring' => {
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'sidekiq_exporter' => {
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'address' => 'localhost',
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'enabled' => true,
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'port' => 3807
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}
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}
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}
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}
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end
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context 'with a running server' do
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let(:metrics_dir) { Dir.mktmpdir }
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before do
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# We need to send a request to localhost
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WebMock.allow_net_connect!
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config_file.write(YAML.dump(config))
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config_file.close
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env = {
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'GITLAB_CONFIG' => config_file.path,
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'METRICS_SERVER_TARGET' => 'sidekiq',
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'WIPE_METRICS_DIR' => '1',
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'prometheus_multiproc_dir' => metrics_dir
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}
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@pid = Process.spawn(env, 'bin/metrics-server', pgroup: true)
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end
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after do
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webmock_enable!
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if @pid
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pgrp = Process.getpgid(@pid)
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Timeout.timeout(5) do
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Process.kill('TERM', -pgrp)
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Process.waitpid(@pid)
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end
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expect(Gitlab::ProcessManagement.process_alive?(@pid)).to be(false)
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end
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rescue Errno::ESRCH => _
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# 'No such process' means the process died before
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ensure
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config_file.unlink
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FileUtils.rm_rf(metrics_dir, secure: true)
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end
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it 'serves /metrics endpoint' do
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expect do
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Timeout.timeout(5) do
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http_ok = false
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until http_ok
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sleep 1
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response = Gitlab::HTTP.try_get("http://localhost:3807/metrics", allow_local_requests: true)
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http_ok = response&.success?
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end
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end
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end.not_to raise_error
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end
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end
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end
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