require 'rails_helper' describe Gitlab::Kubernetes::Helm::Pod do describe '#generate' do let(:cluster) { create(:cluster) } let(:app) { create(:clusters_applications_prometheus, cluster: cluster) } let(:command) { app.install_command } let(:namespace) { Gitlab::Kubernetes::Helm::NAMESPACE } subject { described_class.new(command, namespace) } shared_examples 'helm pod' do it 'should generate a Kubeclient::Resource' do expect(subject.generate).to be_a_kind_of(Kubeclient::Resource) end it 'should generate the appropriate metadata' do metadata = subject.generate.metadata expect(metadata.name).to eq("install-#{app.name}") expect(metadata.namespace).to eq('gitlab-managed-apps') expect(metadata.labels['gitlab.org/action']).to eq('install') expect(metadata.labels['gitlab.org/application']).to eq(app.name) end it 'should generate a container spec' do spec = subject.generate.spec expect(spec.containers.count).to eq(1) end it 'should generate the appropriate specifications for the container' do container = subject.generate.spec.containers.first expect(container.name).to eq('helm') expect(container.image).to eq('alpine:3.6') expect(container.env.count).to eq(3) expect(container.env.map(&:name)).to match_array([:HELM_VERSION, :TILLER_NAMESPACE, :COMMAND_SCRIPT]) expect(container.command).to match_array(["/bin/sh"]) expect(container.args).to match_array(["-c", "$(COMMAND_SCRIPT)"]) end it 'should include a never restart policy' do spec = subject.generate.spec expect(spec.restartPolicy).to eq('Never') end end context 'with a install command' do it_behaves_like 'helm pod' it 'should include volumes for the container' do container = subject.generate.spec.containers.first expect(container.volumeMounts.first['name']).to eq('configuration-volume') expect(container.volumeMounts.first['mountPath']).to eq("/data/helm/#{app.name}/config") end it 'should include a volume inside the specification' do spec = subject.generate.spec expect(spec.volumes.first['name']).to eq('configuration-volume') end it 'should mount configMap specification in the volume' do volume = subject.generate.spec.volumes.first expect(volume.configMap['name']).to eq("values-content-configuration-#{app.name}") expect(volume.configMap['items'].first['key']).to eq('values') expect(volume.configMap['items'].first['path']).to eq('values.yaml') end end context 'with a init command' do let(:app) { create(:clusters_applications_helm, cluster: cluster) } it_behaves_like 'helm pod' it 'should not include volumeMounts inside the container' do container = subject.generate.spec.containers.first expect(container.volumeMounts).to be_nil end it 'should not a volume inside the specification' do spec = subject.generate.spec expect(spec.volumes).to be_nil end end end end