108 lines
3.4 KiB
Ruby
108 lines
3.4 KiB
Ruby
require 'rails_helper'
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describe Clusters::Applications::Prometheus do
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include_examples 'cluster application core specs', :clusters_applications_prometheus
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include_examples 'cluster application status specs', :cluster_application_prometheus
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describe 'transition to installed' do
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let(:project) { create(:project) }
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let(:cluster) { create(:cluster, projects: [project]) }
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let(:prometheus_service) { double('prometheus_service') }
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subject { create(:clusters_applications_prometheus, :installing, cluster: cluster) }
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before do
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allow(project).to receive(:find_or_initialize_service).with('prometheus').and_return prometheus_service
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end
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it 'ensures Prometheus service is activated' do
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expect(prometheus_service).to receive(:update).with(active: true)
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subject.make_installed
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end
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end
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describe '#prometheus_client' do
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context 'cluster is nil' do
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it 'returns nil' do
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expect(subject.cluster).to be_nil
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expect(subject.prometheus_client).to be_nil
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end
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end
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context "cluster doesn't have kubeclient" do
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let(:cluster) { create(:cluster) }
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subject { create(:clusters_applications_prometheus, cluster: cluster) }
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it 'returns nil' do
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expect(subject.prometheus_client).to be_nil
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end
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end
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context 'cluster has kubeclient' do
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let(:kubernetes_url) { 'http://example.com' }
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let(:k8s_discover_response) do
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{
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resources: [
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{
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name: 'service',
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kind: 'Service'
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}
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]
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}
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end
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let(:kube_client) { Kubeclient::Client.new(kubernetes_url) }
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let(:cluster) { create(:cluster) }
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subject { create(:clusters_applications_prometheus, cluster: cluster) }
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before do
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allow(kube_client.rest_client).to receive(:get).and_return(k8s_discover_response.to_json)
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allow(subject.cluster).to receive(:kubeclient).and_return(kube_client)
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end
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it 'creates proxy prometheus rest client' do
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expect(subject.prometheus_client).to be_instance_of(RestClient::Resource)
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end
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it 'creates proper url' do
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expect(subject.prometheus_client.url).to eq('http://example.com/api/v1/proxy/namespaces/gitlab-managed-apps/service/prometheus-prometheus-server:80')
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end
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it 'copies options and headers from kube client to proxy client' do
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expect(subject.prometheus_client.options).to eq(kube_client.rest_client.options.merge(headers: kube_client.headers))
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end
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end
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end
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describe '#install_command' do
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let(:kubeclient) { double('kubernetes client') }
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let(:prometheus) { create(:clusters_applications_prometheus) }
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subject { prometheus.install_command }
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it { is_expected.to be_an_instance_of(Gitlab::Kubernetes::Helm::InstallCommand) }
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it 'should be initialized with 3 arguments' do
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expect(subject.name).to eq('prometheus')
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expect(subject.chart).to eq('stable/prometheus')
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expect(subject.values).to eq(prometheus.values)
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end
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end
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describe '#values' do
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let(:prometheus) { create(:clusters_applications_prometheus) }
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subject { prometheus.values }
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it 'should include prometheus valid values' do
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is_expected.to include('alertmanager')
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is_expected.to include('kubeStateMetrics')
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is_expected.to include('nodeExporter')
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is_expected.to include('pushgateway')
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is_expected.to include('serverFiles')
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end
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end
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end
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