debian-mirror-gitlab/spec/models/clusters/applications/prometheus_spec.rb
2021-06-08 01:23:25 +05:30

342 lines
10 KiB
Ruby

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