Moves domain setting to Cluster setting

Changes domain field to be on the Cluster page show, removing it from
Auto DevOps setting. Also injects the new environment variable
KUBE_INGRESS_BASE_DOMAIN into kubernetes#predefined_variables.

Migration to move the information from ProjectAutoDevops#domain
to Clusters::Cluster#domain. As well as necessary modifications to qa
selectors

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/52363

1 files changed, 12 insertions, 2 deletions

diff --git a/qa/qa/resource/kubernetes_cluster.rb b/qa/qa/resource/kubernetes_cluster.rb
index d67e5f6da20..19c6dc8890d 100644
--- a/qa/qa/resource/kubernetes_cluster.rb
+++ b/qa/qa/resource/kubernetes_cluster.rb
@@ -6,10 +6,14 @@ module QA
   module Resource
     class KubernetesCluster < Base
       attr_writer :project, :cluster,
-        :install_helm_tiller, :install_ingress, :install_prometheus, :install_runner
+        :install_helm_tiller, :install_ingress, :install_prometheus, :install_runner, :domain
 
       attribute :ingress_ip do
-        Page::Project::Operations::Kubernetes::Show.perform(&:ingress_ip)
+        ingress_ip_value
+      end
+
+      attribute :domain do
+        "#{ingress_ip_value}.nip.io"
       end
 
       def fabricate!
@@ -52,6 +56,12 @@ module QA
           end
         end
       end
+
+      private
+
+      def ingress_ip_value
+        @ingress_ip_value ||= Page::Project::Operations::Kubernetes::Show.perform(&:ingress_ip)
+      end
     end
   end
 end