214 lines
6.8 KiB
Ruby
214 lines
6.8 KiB
Ruby
require 'rails_helper'
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describe Clusters::Applications::Prometheus do
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include KubernetesHelpers
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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 helm specs', :clusters_applications_prometheus
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describe '.installed' do
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subject { described_class.installed }
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let!(:cluster) { create(:clusters_applications_prometheus, :installed) }
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before do
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create(:clusters_applications_prometheus, :errored)
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end
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it { is_expected.to contain_exactly(cluster) }
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end
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describe '#make_installing!' do
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before do
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application.make_installing!
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end
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context 'application install previously errored with older version' do
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let(:application) { create(:clusters_applications_prometheus, :scheduled, version: '6.7.2') }
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it 'updates the application version' do
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expect(application.reload.version).to eq('6.7.3')
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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, 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 '#ready' do
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let(:project) { create(:project) }
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let(:cluster) { create(:cluster, projects: [project]) }
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it 'returns true when installed' do
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application = build(:clusters_applications_prometheus, :installed, cluster: cluster)
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expect(application).to be_ready
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end
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it 'returns false when not_installable' do
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application = build(:clusters_applications_prometheus, :not_installable, cluster: cluster)
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expect(application).not_to be_ready
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end
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it 'returns false when installable' do
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application = build(:clusters_applications_prometheus, :installable, cluster: cluster)
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expect(application).not_to be_ready
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end
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it 'returns false when scheduled' do
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application = build(:clusters_applications_prometheus, :scheduled, cluster: cluster)
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expect(application).not_to be_ready
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end
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it 'returns false when installing' do
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application = build(:clusters_applications_prometheus, :installing, cluster: cluster)
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expect(application).not_to be_ready
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end
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it 'returns false when errored' do
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application = build(:clusters_applications_prometheus, :errored, cluster: cluster)
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expect(application).not_to be_ready
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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(:cluster) { create(:cluster, :project, :provided_by_gcp) }
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let(:kubernetes_url) { subject.cluster.platform_kubernetes.api_url }
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let(:kube_client) { subject.cluster.kubeclient.core_client }
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subject { create(:clusters_applications_prometheus, cluster: cluster) }
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before do
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subject.cluster.platform_kubernetes.namespace = 'a-namespace'
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stub_kubeclient_discover(cluster.platform_kubernetes.api_url)
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create(:cluster_kubernetes_namespace,
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cluster: cluster,
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cluster_project: cluster.cluster_project,
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project: cluster.cluster_project.project)
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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("#{kubernetes_url}/api/v1/namespaces/gitlab-managed-apps/services/prometheus-prometheus-server:80/proxy")
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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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context 'when cluster is not reachable' do
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before do
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allow(kube_client).to receive(:proxy_url).and_raise(Kubeclient::HttpError.new(401, 'Unauthorized', nil))
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end
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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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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::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.version).to eq('6.7.3')
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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 'should be initialized with the locked version' do
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expect(subject.version).to eq('6.7.3')
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end
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end
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it 'should not install knative metrics' do
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expect(subject.postinstall).to be_nil
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end
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context 'with knative installed' do
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let(:knative) { create(:clusters_applications_knative, :installed ) }
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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 'should install 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 '#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 'should include 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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end
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