Just try to detect and assign once

app/models/concerns/deployment_platform.rb

 module DeploymentPlatform
   def deployment_platform
-    @deployment_platform ||= find_cluster_platform_kubernetes
-    @deployment_platform ||= find_kubernetes_service_integration
-    @deployment_platform ||= build_cluster_and_deployment_platform
+    @deployment_platform ||=
+      find_cluster_platform_kubernetes ||
+      find_kubernetes_service_integration ||
+      build_cluster_and_deployment_platform
   end
 
   private