debian-mirror-gitlab/spec/models/clusters/cluster_spec.rb

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# frozen_string_literal: true
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require 'spec_helper'
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describe Clusters::Cluster, :use_clean_rails_memory_store_caching do
include ReactiveCachingHelpers
include KubernetesHelpers
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it_behaves_like 'having unique enum values'
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subject { build(:cluster) }
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it { is_expected.to belong_to(:user) }
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it { is_expected.to have_many(:cluster_projects) }
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it { is_expected.to have_many(:projects) }
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it { is_expected.to have_many(:cluster_groups) }
it { is_expected.to have_many(:groups) }
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it { is_expected.to have_one(:provider_gcp) }
it { is_expected.to have_one(:platform_kubernetes) }
it { is_expected.to have_one(:application_helm) }
it { is_expected.to have_one(:application_ingress) }
it { is_expected.to have_one(:application_prometheus) }
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it { is_expected.to have_one(:application_runner) }
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it { is_expected.to have_many(:kubernetes_namespaces) }
it { is_expected.to have_one(:cluster_project) }
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it { is_expected.to delegate_method(:status).to(:provider) }
it { is_expected.to delegate_method(:status_reason).to(:provider) }
it { is_expected.to delegate_method(:on_creation?).to(:provider) }
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it { is_expected.to delegate_method(:active?).to(:platform_kubernetes).with_prefix }
it { is_expected.to delegate_method(:rbac?).to(:platform_kubernetes).with_prefix }
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it { is_expected.to delegate_method(:available?).to(:application_helm).with_prefix }
it { is_expected.to delegate_method(:available?).to(:application_ingress).with_prefix }
it { is_expected.to delegate_method(:available?).to(:application_prometheus).with_prefix }
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it { is_expected.to delegate_method(:available?).to(:application_knative).with_prefix }
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it { is_expected.to delegate_method(:external_ip).to(:application_ingress).with_prefix }
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it { is_expected.to delegate_method(:external_hostname).to(:application_ingress).with_prefix }
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it { is_expected.to respond_to :project }
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it do
expect(subject.knative_services_finder(subject.project))
.to be_instance_of(Clusters::KnativeServicesFinder)
end
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describe '.enabled' do
subject { described_class.enabled }
let!(:cluster) { create(:cluster, enabled: true) }
before do
create(:cluster, enabled: false)
end
it { is_expected.to contain_exactly(cluster) }
end
describe '.disabled' do
subject { described_class.disabled }
let!(:cluster) { create(:cluster, enabled: false) }
before do
create(:cluster, enabled: true)
end
it { is_expected.to contain_exactly(cluster) }
end
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describe '.user_provided' do
subject { described_class.user_provided }
let!(:cluster) { create(:cluster, :provided_by_user) }
before do
create(:cluster, :provided_by_gcp)
end
it { is_expected.to contain_exactly(cluster) }
end
describe '.gcp_provided' do
subject { described_class.gcp_provided }
let!(:cluster) { create(:cluster, :provided_by_gcp) }
before do
create(:cluster, :provided_by_user)
end
it { is_expected.to contain_exactly(cluster) }
end
describe '.gcp_installed' do
subject { described_class.gcp_installed }
let!(:cluster) { create(:cluster, :provided_by_gcp) }
before do
create(:cluster, :providing_by_gcp)
end
it { is_expected.to contain_exactly(cluster) }
end
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describe '.managed' do
subject do
described_class.managed
end
context 'cluster is not managed' do
let!(:cluster) { create(:cluster, :not_managed) }
it { is_expected.not_to include(cluster) }
end
context 'cluster is managed' do
let!(:cluster) { create(:cluster) }
it { is_expected.to include(cluster) }
end
end
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describe '.missing_kubernetes_namespace' do
let!(:cluster) { create(:cluster, :provided_by_gcp, :project) }
let(:project) { cluster.project }
let(:kubernetes_namespaces) { project.kubernetes_namespaces }
subject do
described_class.joins(:projects).where(projects: { id: project.id }).missing_kubernetes_namespace(kubernetes_namespaces)
end
it { is_expected.to contain_exactly(cluster) }
context 'kubernetes namespace exists' do
before do
create(:cluster_kubernetes_namespace, project: project, cluster: cluster)
end
it { is_expected.to be_empty }
end
end
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describe 'validations' do
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subject { cluster.valid? }
context 'when validates name' do
context 'when provided by user' do
let!(:cluster) { build(:cluster, :provided_by_user, name: name) }
context 'when name is empty' do
let(:name) { '' }
it { is_expected.to be_falsey }
end
context 'when name is nil' do
let(:name) { nil }
it { is_expected.to be_falsey }
end
context 'when name is present' do
let(:name) { 'cluster-name-1' }
it { is_expected.to be_truthy }
end
end
context 'when provided by gcp' do
let!(:cluster) { build(:cluster, :provided_by_gcp, name: name) }
context 'when name is shorter than 1' do
let(:name) { '' }
it { is_expected.to be_falsey }
end
context 'when name is longer than 63' do
let(:name) { 'a' * 64 }
it { is_expected.to be_falsey }
end
context 'when name includes invalid character' do
let(:name) { '!!!!!!' }
it { is_expected.to be_falsey }
end
context 'when name is present' do
let(:name) { 'cluster-name-1' }
it { is_expected.to be_truthy }
end
context 'when record is persisted' do
let(:name) { 'cluster-name-1' }
before do
cluster.save!
end
context 'when name is changed' do
before do
cluster.name = 'new-cluster-name'
end
it { is_expected.to be_falsey }
end
context 'when name is same' do
before do
cluster.name = name
end
it { is_expected.to be_truthy }
end
end
end
end
context 'when validates restrict_modification' do
context 'when creation is on going' do
let!(:cluster) { create(:cluster, :providing_by_gcp) }
it { expect(cluster.update(enabled: false)).to be_falsey }
end
context 'when creation is done' do
let!(:cluster) { create(:cluster, :provided_by_gcp) }
it { expect(cluster.update(enabled: false)).to be_truthy }
end
end
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describe 'cluster_type validations' do
let(:instance_cluster) { create(:cluster, :instance) }
let(:group_cluster) { create(:cluster, :group) }
let(:project_cluster) { create(:cluster, :project) }
it 'validates presence' do
cluster = build(:cluster, :project, cluster_type: nil)
expect(cluster).not_to be_valid
expect(cluster.errors.full_messages).to include("Cluster type can't be blank")
end
context 'project_type cluster' do
it 'does not allow setting group' do
project_cluster.groups << build(:group)
expect(project_cluster).not_to be_valid
expect(project_cluster.errors.full_messages).to include('Cluster cannot have groups assigned')
end
end
context 'group_type cluster' do
it 'does not allow setting project' do
group_cluster.projects << build(:project)
expect(group_cluster).not_to be_valid
expect(group_cluster.errors.full_messages).to include('Cluster cannot have projects assigned')
end
end
context 'instance_type cluster' do
it 'does not allow setting group' do
instance_cluster.groups << build(:group)
expect(instance_cluster).not_to be_valid
expect(instance_cluster.errors.full_messages).to include('Cluster cannot have groups assigned')
end
it 'does not allow setting project' do
instance_cluster.projects << build(:project)
expect(instance_cluster).not_to be_valid
expect(instance_cluster.errors.full_messages).to include('Cluster cannot have projects assigned')
end
end
end
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describe 'domain validation' do
let(:cluster) { build(:cluster) }
subject { cluster }
context 'when cluster has domain' do
let(:cluster) { build(:cluster, :with_domain) }
it { is_expected.to be_valid }
end
context 'when cluster is not a valid hostname' do
let(:cluster) { build(:cluster, domain: 'http://not.a.valid.hostname') }
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it 'adds an error on domain' do
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expect(subject).not_to be_valid
expect(subject.errors[:domain].first).to eq('contains invalid characters (valid characters: [a-z0-9\\-])')
end
end
context 'when cluster does not have a domain' do
it { is_expected.to be_valid }
end
end
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end
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describe '.ancestor_clusters_for_clusterable' do
let(:group_cluster) { create(:cluster, :provided_by_gcp, :group) }
let(:group) { group_cluster.group }
let(:hierarchy_order) { :desc }
let(:clusterable) { project }
subject do
described_class.ancestor_clusters_for_clusterable(clusterable, hierarchy_order: hierarchy_order)
end
context 'when project does not belong to this group' do
let(:project) { create(:project, group: create(:group)) }
it 'returns nothing' do
is_expected.to be_empty
end
end
context 'when group has a configured kubernetes cluster' do
let(:project) { create(:project, group: group) }
it 'returns the group cluster' do
is_expected.to eq([group_cluster])
end
end
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context 'when group and instance have configured kubernetes clusters' do
let(:project) { create(:project, group: group) }
let!(:instance_cluster) { create(:cluster, :provided_by_gcp, :instance) }
it 'returns clusters in order, descending the hierachy' do
is_expected.to eq([group_cluster, instance_cluster])
end
end
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context 'when sub-group has configured kubernetes cluster', :nested_groups do
let(:sub_group_cluster) { create(:cluster, :provided_by_gcp, :group) }
let(:sub_group) { sub_group_cluster.group }
let(:project) { create(:project, group: sub_group) }
before do
sub_group.update!(parent: group)
end
it 'returns clusters in order, descending the hierachy' do
is_expected.to eq([group_cluster, sub_group_cluster])
end
it 'avoids N+1 queries' do
another_project = create(:project)
control_count = ActiveRecord::QueryRecorder.new do
described_class.ancestor_clusters_for_clusterable(another_project, hierarchy_order: hierarchy_order)
end.count
cluster2 = create(:cluster, :provided_by_gcp, :group)
child2 = cluster2.group
child2.update!(parent: sub_group)
project = create(:project, group: child2)
expect do
described_class.ancestor_clusters_for_clusterable(project, hierarchy_order: hierarchy_order)
end.not_to exceed_query_limit(control_count)
end
context 'for a group' do
let(:clusterable) { sub_group }
it 'returns clusters in order for a group' do
is_expected.to eq([group_cluster])
end
end
end
context 'scope chaining' do
let(:project) { create(:project, group: group) }
subject { described_class.none.ancestor_clusters_for_clusterable(project) }
it 'returns nothing' do
is_expected.to be_empty
end
end
end
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describe '#provider' do
subject { cluster.provider }
context 'when provider is gcp' do
let(:cluster) { create(:cluster, :provided_by_gcp) }
it 'returns a provider' do
is_expected.to eq(cluster.provider_gcp)
expect(subject.class.name.deconstantize).to eq(Clusters::Providers.to_s)
end
end
context 'when provider is user' do
let(:cluster) { create(:cluster, :provided_by_user) }
it { is_expected.to be_nil }
end
end
describe '#platform' do
subject { cluster.platform }
context 'when platform is kubernetes' do
let(:cluster) { create(:cluster, :provided_by_user) }
it 'returns a platform' do
is_expected.to eq(cluster.platform_kubernetes)
expect(subject.class.name.deconstantize).to eq(Clusters::Platforms.to_s)
end
end
end
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describe '#all_projects' do
let(:project) { create(:project) }
let(:cluster) { create(:cluster, projects: [project]) }
subject { cluster.all_projects }
context 'project cluster' do
it 'returns project' do
is_expected.to eq([project])
end
end
context 'group cluster' do
let(:cluster) { create(:cluster, :group) }
let(:group) { cluster.group }
let(:project) { create(:project, group: group) }
let(:subgroup) { create(:group, parent: group) }
let(:subproject) { create(:project, group: subgroup) }
it 'returns all projects for group' do
is_expected.to contain_exactly(project, subproject)
end
end
end
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describe '#first_project' do
subject { cluster.first_project }
context 'when cluster belongs to a project' do
let(:cluster) { create(:cluster, :project) }
let(:project) { Clusters::Project.find_by_cluster_id(cluster.id).project }
it { is_expected.to eq(project) }
end
context 'when cluster does not belong to projects' do
let(:cluster) { create(:cluster) }
it { is_expected.to be_nil }
end
end
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describe '#group' do
subject { cluster.group }
context 'when cluster belongs to a group' do
let(:cluster) { create(:cluster, :group) }
let(:group) { cluster.groups.first }
it { is_expected.to eq(group) }
end
context 'when cluster does not belong to any group' do
let(:cluster) { create(:cluster) }
it { is_expected.to be_nil }
end
end
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describe '#applications' do
set(:cluster) { create(:cluster) }
subject { cluster.applications }
context 'when none of applications are created' do
it 'returns a list of a new objects' do
is_expected.not_to be_empty
end
end
context 'when applications are created' do
let!(:helm) { create(:clusters_applications_helm, cluster: cluster) }
let!(:ingress) { create(:clusters_applications_ingress, cluster: cluster) }
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let!(:cert_manager) { create(:clusters_applications_cert_managers, cluster: cluster) }
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let!(:prometheus) { create(:clusters_applications_prometheus, cluster: cluster) }
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let!(:runner) { create(:clusters_applications_runner, cluster: cluster) }
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let!(:jupyter) { create(:clusters_applications_jupyter, cluster: cluster) }
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let!(:knative) { create(:clusters_applications_knative, cluster: cluster) }
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it 'returns a list of created applications' do
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is_expected.to contain_exactly(helm, ingress, cert_manager, prometheus, runner, jupyter, knative)
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end
end
end
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describe '#allow_user_defined_namespace?' do
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let(:cluster) { create(:cluster, :provided_by_gcp) }
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subject { cluster.allow_user_defined_namespace? }
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context 'project type cluster' do
context 'gitlab managed' do
it { is_expected.to be_truthy }
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end
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context 'not managed' do
let(:cluster) { create(:cluster, :provided_by_gcp, managed: false) }
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it { is_expected.to be_truthy }
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end
end
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context 'group type cluster' do
context 'gitlab managed' do
let(:cluster) { create(:cluster, :provided_by_gcp, :group) }
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it { is_expected.to be_falsey }
end
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context 'not managed' do
let(:cluster) { create(:cluster, :provided_by_gcp, :group, managed: false) }
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it { is_expected.to be_truthy }
end
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end
context 'instance type cluster' do
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context 'gitlab managed' do
let(:cluster) { create(:cluster, :provided_by_gcp, :instance) }
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it { is_expected.to be_falsey }
end
context 'not managed' do
let(:cluster) { create(:cluster, :provided_by_gcp, :instance, managed: false) }
it { is_expected.to be_truthy }
end
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end
end
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describe '#kube_ingress_domain' do
let(:cluster) { create(:cluster, :provided_by_gcp) }
subject { cluster.kube_ingress_domain }
context 'with domain set in cluster' do
let(:cluster) { create(:cluster, :provided_by_gcp, :with_domain) }
it { is_expected.to eq(cluster.domain) }
end
context 'with no domain on cluster' do
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let(:cluster) { create(:cluster, :project, :provided_by_gcp) }
let(:project) { cluster.project }
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context 'with domain set at instance level' do
before do
stub_application_setting(auto_devops_domain: 'global_domain.com')
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end
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it { is_expected.to eq('global_domain.com') }
end
end
end
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describe '#find_or_initialize_kubernetes_namespace_for_project' do
let(:cluster) { create(:cluster, :project, :provided_by_gcp) }
let(:project) { cluster.projects.first }
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subject { cluster.find_or_initialize_kubernetes_namespace_for_project(project) }
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context 'kubernetes namespace exists' do
context 'with no service account token' do
let!(:kubernetes_namespace) { create(:cluster_kubernetes_namespace, project: project, cluster: cluster) }
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it { is_expected.to eq kubernetes_namespace }
end
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context 'with a service account token' do
let!(:kubernetes_namespace) { create(:cluster_kubernetes_namespace, :with_token, project: project, cluster: cluster) }
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it { is_expected.to eq kubernetes_namespace }
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end
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end
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context 'kubernetes namespace does not exist' do
it 'initializes a new namespace and sets default values' do
expect(subject).to be_new_record
expect(subject.project).to eq project
expect(subject.cluster).to eq cluster
expect(subject.namespace).to be_present
expect(subject.service_account_name).to be_present
end
end
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context 'a custom scope is provided' do
let(:scope) { cluster.kubernetes_namespaces.has_service_account_token }
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subject { cluster.find_or_initialize_kubernetes_namespace_for_project(project, scope: scope) }
context 'kubernetes namespace exists' do
context 'with no service account token' do
let!(:kubernetes_namespace) { create(:cluster_kubernetes_namespace, project: project, cluster: cluster) }
it 'initializes a new namespace and sets default values' do
expect(subject).to be_new_record
expect(subject.project).to eq project
expect(subject.cluster).to eq cluster
expect(subject.namespace).to be_present
expect(subject.service_account_name).to be_present
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end
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end
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context 'with a service account token' do
let!(:kubernetes_namespace) { create(:cluster_kubernetes_namespace, :with_token, project: project, cluster: cluster) }
it { is_expected.to eq kubernetes_namespace }
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end
end
end
end
describe '#predefined_variables' do
subject { cluster.predefined_variables }
context 'with an instance domain' do
let(:cluster) { create(:cluster, :provided_by_gcp) }
before do
stub_application_setting(auto_devops_domain: 'global_domain.com')
end
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it 'includes KUBE_INGRESS_BASE_DOMAIN' do
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expect(subject.to_hash).to include(KUBE_INGRESS_BASE_DOMAIN: 'global_domain.com')
end
end
context 'with a cluster domain' do
let(:cluster) { create(:cluster, :provided_by_gcp, domain: 'example.com') }
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it 'includes KUBE_INGRESS_BASE_DOMAIN' do
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expect(subject.to_hash).to include(KUBE_INGRESS_BASE_DOMAIN: 'example.com')
end
end
context 'with no domain' do
let(:cluster) { create(:cluster, :provided_by_gcp, :project) }
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it 'returns an empty array' do
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expect(subject.to_hash).to be_empty
end
end
end
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describe '#provided_by_user?' do
subject { cluster.provided_by_user? }
context 'with a GCP provider' do
let(:cluster) { create(:cluster, :provided_by_gcp) }
it { is_expected.to be_falsy }
end
context 'with an user provider' do
let(:cluster) { create(:cluster, :provided_by_user) }
it { is_expected.to be_truthy }
end
end
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describe '#status_name' do
subject { cluster.status_name }
context 'the cluster has a provider' do
let(:cluster) { create(:cluster, :provided_by_gcp) }
before do
cluster.provider.make_errored!
end
it { is_expected.to eq :errored }
end
context 'there is a cached connection status' do
let(:cluster) { create(:cluster, :provided_by_user) }
before do
allow(cluster).to receive(:connection_status).and_return(:connected)
end
it { is_expected.to eq :connected }
end
context 'there is no connection status in the cache' do
let(:cluster) { create(:cluster, :provided_by_user) }
before do
allow(cluster).to receive(:connection_status).and_return(nil)
end
it { is_expected.to eq :created }
end
end
describe '#connection_status' do
let(:cluster) { create(:cluster) }
let(:status) { :connected }
subject { cluster.connection_status }
it { is_expected.to be_nil }
context 'with a cached status' do
before do
stub_reactive_cache(cluster, connection_status: status)
end
it { is_expected.to eq(status) }
end
end
describe '#calculate_reactive_cache' do
subject { cluster.calculate_reactive_cache }
context 'cluster is disabled' do
let(:cluster) { create(:cluster, :disabled) }
it 'does not populate the cache' do
expect(cluster).not_to receive(:retrieve_connection_status)
is_expected.to be_nil
end
end
context 'cluster is enabled' do
let(:cluster) { create(:cluster, :provided_by_user, :group) }
context 'connection to the cluster is successful' do
before do
stub_kubeclient_discover(cluster.platform.api_url)
end
it { is_expected.to eq(connection_status: :connected) }
end
context 'cluster cannot be reached' do
before do
allow(cluster.kubeclient.core_client).to receive(:discover)
.and_raise(SocketError)
end
it { is_expected.to eq(connection_status: :unreachable) }
end
context 'cluster cannot be authenticated to' do
before do
allow(cluster.kubeclient.core_client).to receive(:discover)
.and_raise(OpenSSL::X509::CertificateError.new("Certificate error"))
end
it { is_expected.to eq(connection_status: :authentication_failure) }
end
describe 'Kubeclient::HttpError' do
let(:error_code) { 403 }
let(:error_message) { "Forbidden" }
before do
allow(cluster.kubeclient.core_client).to receive(:discover)
.and_raise(Kubeclient::HttpError.new(error_code, error_message, nil))
end
it { is_expected.to eq(connection_status: :authentication_failure) }
context 'generic timeout' do
let(:error_message) { 'Timed out connecting to server'}
it { is_expected.to eq(connection_status: :unreachable) }
end
context 'gateway timeout' do
let(:error_message) { '504 Gateway Timeout for GET https://kubernetes.example.com/api/v1'}
it { is_expected.to eq(connection_status: :unreachable) }
end
end
context 'an uncategorised error is raised' do
before do
allow(cluster.kubeclient.core_client).to receive(:discover)
.and_raise(StandardError)
end
it { is_expected.to eq(connection_status: :unknown_failure) }
it 'notifies Sentry' do
expect(Gitlab::Sentry).to receive(:track_acceptable_exception)
.with(instance_of(StandardError), hash_including(extra: { cluster_id: cluster.id }))
subject
end
end
end
end
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end