EE scoping for cluster management projects

If the license allows, match the environment name to the cluster scope
for cluster management project as well.

app/models/concerns/deployment_platform.rb

@@ -17,6 +17,7 @@ module DeploymentPlatform
       find_instance_cluster_platform_kubernetes(environment: environment)
   end
 
+  # EE would override this and utilize environment argument
   def find_management_cluster(_environment)
     management_clusters.enabled.default_environment.first&.platform_kubernetes
   end

ee/app/models/concerns/ee/deployment_platform.rb

@@ -4,6 +4,14 @@ module EE
   module DeploymentPlatform
     extend ::Gitlab::Utils::Override
 
+    override :find_management_cluster
+    def find_management_cluster(environment)
+      management_clusters
+        .enabled
+        .on_environment(environment, relevant_only: true)
+        .first&.platform_kubernetes
+    end
+
     override :find_platform_kubernetes_with_cte
     def find_platform_kubernetes_with_cte(environment)
       return super unless environment && feature_available?(:multiple_clusters)

ee/spec/models/concerns/ee/deployment_platform_spec.rb

@@ -51,6 +51,24 @@ describe EE::DeploymentPlatform do
       end
     end
 
+    context 'multiple clusters use the same management project' do
+      let(:management_project) { create(:project, group: group) }
+
+      let!(:default_cluster) do
+        create(:cluster_for_group, groups: [group], environment_scope: '*', management_project: management_project)
+      end
+
+      let!(:cluster) do
+        create(:cluster_for_group, groups: [group], environment_scope: 'review/*', management_project: management_project)
+      end
+
+      let(:environment) { 'review/name' }
+
+      subject { management_project.deployment_platform(environment: environment) }
+
+      it_behaves_like 'matching environment scope'
+    end
+
     context 'when project does not have a cluster but has group clusters' do
       let!(:default_cluster) do
         create(:cluster, :provided_by_user,