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require 'spec_helper'
describe Clusters::Platforms::Kubernetes, :use_clean_rails_memory_store_caching do
include KubernetesHelpers
include ReactiveCachingHelpers
it { is_expected.to belong_to(:cluster) }
it { is_expected.to be_kind_of(Gitlab::Kubernetes) }
it { is_expected.to be_kind_of(ReactiveCaching) }
it { is_expected.to respond_to :ca_pem }
describe 'before_validation' do
context 'when namespace includes upper case' do
let(:kubernetes) { create(:cluster_platform_kubernetes, :configured, namespace: namespace) }
let(:namespace) { 'ABC' }
it 'converts to lower case' do
expect(kubernetes.namespace).to eq('abc')
end
end
end
describe 'validation' do
subject { kubernetes.valid? }
context 'when validates namespace' do
let(:kubernetes) { build(:cluster_platform_kubernetes, :configured, namespace: namespace) }
context 'when namespace is blank' do
let(:namespace) { '' }
it { is_expected.to be_truthy }
end
context 'when namespace is longer than 63' do
let(:namespace) { 'a' * 64 }
it { is_expected.to be_falsey }
end
context 'when namespace includes invalid character' do
let(:namespace) { '!!!!!!' }
it { is_expected.to be_falsey }
end
context 'when namespace is vaild' do
let(:namespace) { 'namespace-123' }
it { is_expected.to be_truthy }
end
end
context 'when validates api_url' do
let(:kubernetes) { build(:cluster_platform_kubernetes, :configured) }
before do
kubernetes.api_url = api_url
end
context 'when api_url is invalid url' do
let(:api_url) { '!!!!!!' }
it { expect(kubernetes.save).to be_falsey }
end
context 'when api_url is nil' do
let(:api_url) { nil }
it { expect(kubernetes.save).to be_falsey }
end
context 'when api_url is valid url' do
let(:api_url) { 'https://111.111.111.111' }
it { expect(kubernetes.save).to be_truthy }
end
end
context 'when validates token' do
let(:kubernetes) { build(:cluster_platform_kubernetes, :configured) }
before do
kubernetes.token = token
end
context 'when token is nil' do
let(:token) { nil }
it { expect(kubernetes.save).to be_falsey }
end
end
end
describe '#actual_namespace' do
subject { kubernetes.actual_namespace }
let!(:cluster) { create(:cluster, :project, platform_kubernetes: kubernetes) }
let(:project) { cluster.project }
let(:kubernetes) { create(:cluster_platform_kubernetes, :configured, namespace: namespace) }
context 'when namespace is present' do
let(:namespace) { 'namespace-123' }
it { is_expected.to eq(namespace) }
end
context 'when namespace is not present' do
let(:namespace) { nil }
it { is_expected.to eq("#{project.path}-#{project.id}") }
end
end
describe '#default_namespace' do
subject { kubernetes.send(:default_namespace) }
let(:kubernetes) { create(:cluster_platform_kubernetes, :configured) }
context 'when cluster belongs to a project' do
let!(:cluster) { create(:cluster, :project, platform_kubernetes: kubernetes) }
let(:project) { cluster.project }
it { is_expected.to eq("#{project.path}-#{project.id}") }
end
context 'when cluster belongs to nothing' do
let!(:cluster) { create(:cluster, platform_kubernetes: kubernetes) }
it { is_expected.to be_nil }
end
end
describe '#predefined_variables' do
let!(:cluster) { create(:cluster, :project, platform_kubernetes: kubernetes) }
let(:kubernetes) { create(:cluster_platform_kubernetes, api_url: api_url, ca_cert: ca_pem, token: token) }
let(:api_url) { 'https://kube.domain.com' }
let(:ca_pem) { 'CA PEM DATA' }
let(:token) { 'token' }
let(:kubeconfig) do
config_file = expand_fixture_path('config/kubeconfig.yml')
config = YAML.load(File.read(config_file))
config.dig('users', 0, 'user')['token'] = token
config.dig('contexts', 0, 'context')['namespace'] = namespace
config.dig('clusters', 0, 'cluster')['certificate-authority-data'] =
Base64.strict_encode64(ca_pem)
YAML.dump(config)
end
shared_examples 'setting variables' do
it 'sets the variables' do
expect(kubernetes.predefined_variables).to include(
{ key: 'KUBE_URL', value: api_url, public: true },
{ key: 'KUBE_TOKEN', value: token, public: false },
{ key: 'KUBE_NAMESPACE', value: namespace, public: true },
{ key: 'KUBECONFIG', value: kubeconfig, public: false, file: true },
{ key: 'KUBE_CA_PEM', value: ca_pem, public: true },
{ key: 'KUBE_CA_PEM_FILE', value: ca_pem, public: true, file: true }
)
end
end
context 'namespace is provided' do
let(:namespace) { 'my-project' }
before do
kubernetes.namespace = namespace
end
it_behaves_like 'setting variables'
end
context 'no namespace provided' do
let(:namespace) { kubernetes.actual_namespace }
it_behaves_like 'setting variables'
it 'sets the KUBE_NAMESPACE' do
kube_namespace = kubernetes.predefined_variables.find { |h| h[:key] == 'KUBE_NAMESPACE' }
expect(kube_namespace).not_to be_nil
expect(kube_namespace[:value]).to match(/\A#{Gitlab::PathRegex::PATH_REGEX_STR}-\d+\z/)
end
end
end
describe '#terminals' do
subject { service.terminals(environment) }
let!(:cluster) { create(:cluster, :project, platform_kubernetes: service) }
let(:project) { cluster.project }
let(:service) { create(:cluster_platform_kubernetes, :configured) }
let(:environment) { build(:environment, project: project, name: "env", slug: "env-000000") }
context 'with invalid pods' do
it 'returns no terminals' do
stub_reactive_cache(service, pods: [{ "bad" => "pod" }])
is_expected.to be_empty
end
end
context 'with valid pods' do
let(:pod) { kube_pod(app: environment.slug) }
let(:terminals) { kube_terminals(service, pod) }
before do
stub_reactive_cache(
service,
pods: [pod, pod, kube_pod(app: "should-be-filtered-out")]
)
end
it 'returns terminals' do
is_expected.to eq(terminals + terminals)
end
it 'uses max session time from settings' do
stub_application_setting(terminal_max_session_time: 600)
times = subject.map { |terminal| terminal[:max_session_time] }
expect(times).to eq [600, 600, 600, 600]
end
end
end
describe '#calculate_reactive_cache' do
subject { service.calculate_reactive_cache }
let!(:cluster) { create(:cluster, :project, enabled: enabled, platform_kubernetes: service) }
let(:service) { create(:cluster_platform_kubernetes, :configured) }
let(:enabled) { true }
context 'when cluster is disabled' do
let(:enabled) { false }
it { is_expected.to be_nil }
end
context 'when kubernetes responds with valid pods and deployments' do
before do
stub_kubeclient_pods
stub_kubeclient_deployments
end
it { is_expected.to include(pods: [kube_pod]) }
end
context 'when kubernetes responds with 500s' do
before do
stub_kubeclient_pods(status: 500)
stub_kubeclient_deployments(status: 500)
end
it { expect { subject }.to raise_error(Kubeclient::HttpError) }
end
context 'when kubernetes responds with 404s' do
before do
stub_kubeclient_pods(status: 404)
stub_kubeclient_deployments(status: 404)
end
it { is_expected.to include(pods: []) }
end
end
end
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