Persist external IP of ingress controller created for GKE (#42643)

1 files changed, 81 insertions, 0 deletions

diff --git a/spec/services/clusters/applications/check_ingress_ip_address_service_spec.rb b/spec/services/clusters/applications/check_ingress_ip_address_service_spec.rb
new file mode 100644
index 00000000000..5d99196fbe6
--- /dev/null
+++ b/spec/services/clusters/applications/check_ingress_ip_address_service_spec.rb
@@ -0,0 +1,81 @@
+require 'spec_helper'
+
+describe Clusters::Applications::CheckIngressIpAddressService do
+  let(:application) { create(:clusters_applications_ingress, :installed) }
+  let(:service) { described_class.new(application) }
+  let(:kube_service) do
+    ::Kubeclient::Resource.new(
+      {
+          status: {
+              loadBalancer: {
+                  ingress: ingress
+              }
+          }
+      }
+    )
+  end
+  let(:kubeclient) { double(::Kubeclient::Client, get_service: kube_service) }
+  let(:ingress) { [{ ip: '111.222.111.222' }] }
+
+  before do
+    allow(application.cluster).to receive(:kubeclient).and_return(kubeclient)
+  end
+
+  describe '#execute' do
+    context 'when the ingress ip address is available' do
+      it 'updates the external_ip for the app and does not schedule another worker' do
+        expect(ClusterWaitForIngressIpAddressWorker).not_to receive(:perform_in)
+
+        service.execute(1)
+
+        expect(application.external_ip).to eq('111.222.111.222')
+      end
+    end
+
+    context 'when the ingress ip address is not available' do
+      let(:ingress) { nil }
+
+      it 'it schedules another worker with 1 less retry' do
+        expect(ClusterWaitForIngressIpAddressWorker)
+          .to receive(:perform_in)
+          .with(ClusterWaitForIngressIpAddressWorker::INTERVAL, 'ingress', application.id, 0)
+
+        service.execute(1)
+      end
+
+      context 'when no more retries remaining' do
+        it 'does not schedule another worker' do
+          expect(ClusterWaitForIngressIpAddressWorker).not_to receive(:perform_in)
+
+          service.execute(0)
+        end
+      end
+    end
+
+    context 'when there is already an external_ip' do
+      let(:application) { create(:clusters_applications_ingress, :installed, external_ip: '001.111.002.111') }
+
+      it 'does nothing' do
+        expect(kubeclient).not_to receive(:get_service)
+
+        service.execute(1)
+
+        expect(application.external_ip).to eq('001.111.002.111')
+      end
+    end
+
+    context 'when a kubernetes error occurs' do
+      before do
+        allow(kubeclient).to receive(:get_service).and_raise(KubeException.new(500, 'something blew up', nil))
+      end
+
+      it 'it schedules another worker with 1 less retry' do
+        expect(ClusterWaitForIngressIpAddressWorker)
+          .to receive(:perform_in)
+          .with(ClusterWaitForIngressIpAddressWorker::INTERVAL, 'ingress', application.id, 0)
+
+        service.execute(1)
+      end
+    end
+  end
+end