Add association to serverless_domain_cluster

app/models/clusters/applications/knative.rb

@@ -11,6 +11,8 @@ module Clusters
 
       self.table_name = 'clusters_applications_knative'
 
+      has_one :serverless_domain_cluster, class_name: 'Serverless::DomainCluster', foreign_key: 'clusters_applications_knative_id', inverse_of: :knative
+
       include ::Clusters::Concerns::ApplicationCore
       include ::Clusters::Concerns::ApplicationStatus
       include ::Clusters::Concerns::ApplicationVersion

spec/models/clusters/applications/knative_spec.rb

@@ -16,6 +16,10 @@ describe Clusters::Applications::Knative do
     allow(ClusterWaitForIngressIpAddressWorker).to receive(:perform_async)
   end
 
+  describe 'associations' do
+    it { is_expected.to have_one(:serverless_domain_cluster).class_name('Serverless::DomainCluster').with_foreign_key('clusters_applications_knative_id').inverse_of(:knative) }
+  end
+
   describe 'when cloud run is enabled' do
     let(:cluster) { create(:cluster, :provided_by_gcp, :cloud_run_enabled) }
     let(:knative_cloud_run) { create(:clusters_applications_knative, cluster: cluster) }