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# frozen_string_literal: true
require 'spec_helper'
describe Clusters::Applications::PrometheusConfigService do
include Gitlab::Routing.url_helpers
let_it_be(:project) { create(:project) }
let_it_be(:production) { create(:environment, project: project) }
let_it_be(:cluster) { create(:cluster, :provided_by_user, projects: [project]) }
let(:application) do
create(:clusters_applications_prometheus, :installed, cluster: cluster)
end
subject { described_class.new(project, cluster, application).execute(input) }
describe '#execute' do
let(:input) do
YAML.load_file(Rails.root.join('vendor/prometheus/values.yaml'))
end
context 'with alerts' do
let!(:alert) do
create(:prometheus_alert, project: project, environment: production)
end
it 'enables alertmanager' do
expect(subject.dig('alertmanager', 'enabled')).to eq(true)
end
describe 'alertmanagerFiles' do
let(:alertmanager) do
subject.dig('alertmanagerFiles', 'alertmanager.yml')
end
it 'contains receivers and route' do
expect(alertmanager.keys).to contain_exactly('receivers', 'route')
end
describe 'receivers' do
let(:receiver) { alertmanager.dig('receivers', 0) }
let(:webhook_config) { receiver.dig('webhook_configs', 0) }
let(:notify_url) do
notify_project_prometheus_alerts_url(project, format: :json)
end
it 'sets receiver' do
expect(receiver['name']).to eq('gitlab')
end
it 'sets webhook_config' do
expect(webhook_config).to eq(
'url' => notify_url,
'send_resolved' => true,
'http_config' => {
'bearer_token' => application.alert_manager_token
}
)
end
end
describe 'route' do
let(:route) { alertmanager.fetch('route') }
it 'sets route' do
expect(route).to eq(
'receiver' => 'gitlab',
'group_wait' => '30s',
'group_interval' => '5m',
'repeat_interval' => '4h'
)
end
end
end
describe 'serverFiles' do
let(:groups) { subject.dig('serverFiles', 'alerts', 'groups') }
it 'sets the alerts' do
rules = groups.dig(0, 'rules')
expect(rules.size).to eq(1)
expect(rules.first['alert']).to eq(alert.title)
end
context 'with parameterized queries' do
let!(:alert) do
create(:prometheus_alert,
project: project,
environment: production,
prometheus_metric: metric,
operator: PrometheusAlert.operators['gt'],
threshold: 0)
end
let(:metric) do
create(:prometheus_metric, query: query, project: project)
end
let(:query) { 'up{environment="{{ci_environment_slug}}"}' }
it 'substitutes query variables' do
expect(Gitlab::Prometheus::QueryVariables)
.to receive(:call)
.with(production, start_time: nil, end_time: nil)
.and_call_original
expr = groups.dig(0, 'rules', 0, 'expr')
expect(expr).to eq("up{environment=\"#{production.slug}\"} > 0.0")
end
end
context 'with multiple environments' do
let(:staging) { create(:environment, project: project) }
before do
create(:prometheus_alert, project: project, environment: production)
create(:prometheus_alert, project: project, environment: staging)
end
it 'sets alerts for multiple environment' do
env_names = groups.map { |group| group['name'] }
expect(env_names).to contain_exactly(
"#{production.name}.rules",
"#{staging.name}.rules"
)
end
it 'substitutes query variables once per environment' do
allow(Gitlab::Prometheus::QueryVariables).to receive(:call).and_call_original
expect(Gitlab::Prometheus::QueryVariables)
.to receive(:call)
.with(production, start_time: nil, end_time: nil)
expect(Gitlab::Prometheus::QueryVariables)
.to receive(:call)
.with(staging, start_time: nil, end_time: nil)
subject
end
end
end
end
context 'without alerts' do
it 'disables alertmanager' do
expect(subject.dig('alertmanager', 'enabled')).to eq(false)
end
it 'removes alertmanagerFiles' do
expect(subject).not_to include('alertmanagerFiles')
end
it 'removes alerts' do
expect(subject.dig('serverFiles', 'alerts')).to eq({})
end
end
end
end
|
