380 lines
12 KiB
Ruby
380 lines
12 KiB
Ruby
# frozen_string_literal: true
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require 'spec_helper'
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RSpec.describe Clusters::Applications::Prometheus do
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include KubernetesHelpers
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include StubRequests
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include_examples 'cluster application core specs', :clusters_applications_prometheus
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include_examples 'cluster application status specs', :clusters_applications_prometheus
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include_examples 'cluster application version specs', :clusters_applications_prometheus
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include_examples 'cluster application helm specs', :clusters_applications_prometheus
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include_examples 'cluster application initial status specs'
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describe 'after_destroy' do
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context 'cluster type is project' do
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let(:cluster) { create(:cluster, :with_installed_helm) }
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let(:application) { create(:clusters_applications_prometheus, :installed, cluster: cluster) }
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it 'deactivates prometheus_service after destroy' do
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expect(Clusters::Applications::DeactivateServiceWorker)
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.to receive(:perform_async).with(cluster.id, 'prometheus')
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application.destroy!
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end
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end
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end
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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, :with_installed_helm) }
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let(:application) { create(:clusters_applications_prometheus, :installing, cluster: cluster) }
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it 'schedules post installation job' do
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expect(Clusters::Applications::ActivateServiceWorker)
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.to receive(:perform_async).with(cluster.id, 'prometheus')
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application.make_installed
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end
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end
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describe 'transition to externally_installed' do
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let(:project) { create(:project) }
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let(:cluster) { create(:cluster, :with_installed_helm) }
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let(:application) { create(:clusters_applications_prometheus, :installing, cluster: cluster) }
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it 'schedules post installation job' do
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expect(Clusters::Applications::ActivateServiceWorker)
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.to receive(:perform_async).with(cluster.id, 'prometheus')
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application.make_externally_installed!
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end
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end
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describe 'transition to updating' do
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let(:project) { create(:project) }
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let(:cluster) { create(:cluster, projects: [project]) }
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subject { create(:clusters_applications_prometheus, :installed, cluster: cluster) }
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it 'sets last_update_started_at to now' do
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freeze_time do
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expect { subject.make_updating }.to change { subject.reload.last_update_started_at }.to be_within(1.second).of(Time.current)
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end
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end
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end
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describe '#managed_prometheus?' do
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subject { prometheus.managed_prometheus? }
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let(:prometheus) { build(:clusters_applications_prometheus) }
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it { is_expected.to be_truthy }
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context 'externally installed' do
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let(:prometheus) { build(:clusters_applications_prometheus, :externally_installed) }
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it { is_expected.to be_falsey }
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end
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context 'uninstalled' do
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let(:prometheus) { build(:clusters_applications_prometheus, :uninstalled) }
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it { is_expected.to be_falsey }
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end
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end
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describe '#can_uninstall?' do
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let(:prometheus) { create(:clusters_applications_prometheus) }
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subject { prometheus.can_uninstall? }
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it { is_expected.to be_truthy }
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end
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describe '#prometheus_client' do
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include_examples '#prometheus_client shared' do
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let(:factory) { :clusters_applications_prometheus }
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end
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end
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describe '#install_command' do
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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::V3::InstallCommand) }
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it 'is initialized with 3 arguments' do
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expect(subject.name).to eq('prometheus')
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expect(subject.chart).to eq('prometheus/prometheus')
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expect(subject.version).to eq('10.4.1')
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expect(subject).to be_rbac
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expect(subject.files).to eq(prometheus.files)
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end
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context 'on a non rbac enabled cluster' do
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before do
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prometheus.cluster.platform_kubernetes.abac!
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end
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it { is_expected.not_to be_rbac }
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end
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context 'application failed to install previously' do
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let(:prometheus) { create(:clusters_applications_prometheus, :errored, version: '2.0.0') }
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it 'is initialized with the locked version' do
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expect(subject.version).to eq('10.4.1')
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end
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end
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it 'does not install knative metrics' do
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expect(subject.postinstall).to be_empty
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end
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context 'with knative installed' do
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let(:knative) { create(:clusters_applications_knative, :updated ) }
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let(:prometheus) { create(:clusters_applications_prometheus, cluster: knative.cluster) }
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subject { prometheus.install_command }
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it 'installs knative metrics' do
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expect(subject.postinstall).to include("kubectl apply -f #{Clusters::Applications::Knative::METRICS_CONFIG}")
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end
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end
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end
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describe '#uninstall_command' do
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let(:prometheus) { create(:clusters_applications_prometheus) }
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subject { prometheus.uninstall_command }
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it { is_expected.to be_an_instance_of(Gitlab::Kubernetes::Helm::V3::DeleteCommand) }
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it 'has the application name' do
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expect(subject.name).to eq('prometheus')
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end
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it 'has files' do
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expect(subject.files).to eq(prometheus.files)
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end
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it 'is rbac' do
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expect(subject).to be_rbac
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end
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describe '#predelete' do
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let(:knative) { create(:clusters_applications_knative, :updated ) }
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let(:prometheus) { create(:clusters_applications_prometheus, cluster: knative.cluster) }
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subject { prometheus.uninstall_command.predelete }
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it 'deletes knative metrics' do
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metrics_config = Clusters::Applications::Knative::METRICS_CONFIG
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is_expected.to include("kubectl delete -f #{metrics_config} --ignore-not-found")
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end
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end
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context 'on a non rbac enabled cluster' do
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before do
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prometheus.cluster.platform_kubernetes.abac!
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end
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it { is_expected.not_to be_rbac }
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end
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end
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describe '#patch_command' do
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subject(:patch_command) { prometheus.patch_command(values) }
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let(:prometheus) { build(:clusters_applications_prometheus) }
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let(:values) { prometheus.values }
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it { is_expected.to be_an_instance_of(::Gitlab::Kubernetes::Helm::V3::PatchCommand) }
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it 'is initialized with 3 arguments' do
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expect(patch_command.name).to eq('prometheus')
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expect(patch_command.chart).to eq('prometheus/prometheus')
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expect(patch_command.version).to eq('10.4.1')
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expect(patch_command.files).to eq(prometheus.files)
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end
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end
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describe '#update_in_progress?' do
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context 'when app is updating' do
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it 'returns true' do
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cluster = create(:cluster)
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prometheus_app = build(:clusters_applications_prometheus, :updating, cluster: cluster)
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expect(prometheus_app.update_in_progress?).to be true
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end
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end
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end
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describe '#update_errored?' do
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context 'when app errored' do
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it 'returns true' do
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cluster = create(:cluster)
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prometheus_app = build(:clusters_applications_prometheus, :update_errored, cluster: cluster)
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expect(prometheus_app.update_errored?).to be true
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end
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end
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end
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describe '#files' do
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let(:application) { create(:clusters_applications_prometheus) }
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let(:values) { subject[:'values.yaml'] }
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subject { application.files }
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it 'includes prometheus valid values' do
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expect(values).to include('alertmanager')
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expect(values).to include('kubeStateMetrics')
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expect(values).to include('nodeExporter')
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expect(values).to include('pushgateway')
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expect(values).to include('serverFiles')
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end
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end
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describe '#files_with_replaced_values' do
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let(:application) { build(:clusters_applications_prometheus) }
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let(:files) { application.files }
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subject { application.files_with_replaced_values({ hello: :world }) }
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it 'does not modify #files' do
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expect(subject[:'values.yaml']).not_to eq(files[:'values.yaml'])
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expect(files[:'values.yaml']).to eq(application.values)
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end
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it 'returns values.yaml with replaced values' do
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expect(subject[:'values.yaml']).to eq({ hello: :world })
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end
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it 'uses values from #files, except for values.yaml' do
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allow(application).to receive(:files).and_return({
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'values.yaml': 'some value specific to files',
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'file_a.txt': 'file_a',
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'file_b.txt': 'file_b'
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})
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expect(subject.except(:'values.yaml')).to eq({
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'file_a.txt': 'file_a',
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'file_b.txt': 'file_b'
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})
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end
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end
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describe '#configured?' do
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let(:prometheus) { create(:clusters_applications_prometheus, :installed, cluster: cluster) }
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subject { prometheus.configured? }
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context 'when a kubenetes client is present' do
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let(:cluster) { create(:cluster, :project, :provided_by_gcp) }
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it { is_expected.to be_truthy }
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context 'when it is not availalble' do
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let(:prometheus) { create(:clusters_applications_prometheus, cluster: cluster) }
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it { is_expected.to be_falsey }
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end
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context 'when the kubernetes URL is blocked' do
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before do
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blocked_ip = '127.0.0.1' # localhost addresses are blocked by default
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stub_all_dns(cluster.platform.api_url, ip_address: blocked_ip)
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end
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it { is_expected.to be_falsey }
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end
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end
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context 'when a kubenetes client is not present' do
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let(:cluster) { create(:cluster) }
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it { is_expected.to be_falsy }
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end
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end
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describe '#updated_since?' do
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let(:cluster) { create(:cluster) }
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let(:prometheus_app) { build(:clusters_applications_prometheus, cluster: cluster) }
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let(:timestamp) { Time.current - 5.minutes }
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around do |example|
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freeze_time { example.run }
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end
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before do
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prometheus_app.last_update_started_at = Time.current
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end
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context 'when app does not have status failed' do
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it 'returns true when last update started after the timestamp' do
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expect(prometheus_app.updated_since?(timestamp)).to be true
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end
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it 'returns false when last update started before the timestamp' do
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expect(prometheus_app.updated_since?(Time.current + 5.minutes)).to be false
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end
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end
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context 'when app has status failed' do
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it 'returns false when last update started after the timestamp' do
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prometheus_app.status = 6
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expect(prometheus_app.updated_since?(timestamp)).to be false
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end
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end
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end
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describe 'alert manager token' do
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subject { create(:clusters_applications_prometheus) }
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context 'when not set' do
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it 'is empty by default' do
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expect(subject.alert_manager_token).to be_nil
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expect(subject.encrypted_alert_manager_token).to be_nil
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expect(subject.encrypted_alert_manager_token_iv).to be_nil
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end
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describe '#generate_alert_manager_token!' do
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it 'generates a token' do
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subject.generate_alert_manager_token!
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expect(subject.alert_manager_token).to match(/\A\h{32}\z/)
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end
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end
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end
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context 'when set' do
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let(:token) { SecureRandom.hex }
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before do
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subject.update!(alert_manager_token: token)
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end
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it 'reads the token' do
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expect(subject.alert_manager_token).to eq(token)
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expect(subject.encrypted_alert_manager_token).not_to be_nil
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expect(subject.encrypted_alert_manager_token_iv).not_to be_nil
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end
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describe '#generate_alert_manager_token!' do
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it 'does not re-generate the token' do
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subject.generate_alert_manager_token!
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expect(subject.alert_manager_token).to eq(token)
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end
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end
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end
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end
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end
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