DRY feature flag to central location

app/models/clusters/concerns/application_core.rb

@@ -15,7 +15,7 @@ module Clusters
         def set_initial_status
           return unless not_installable?
 
-          self.status = status_states[:installable] if cluster&.application_helm_available? || Feature.enabled?(:managed_apps_local_tiller)
+          self.status = status_states[:installable] if cluster&.application_helm_available? || ::Gitlab::Kubernetes::Helm.local_tiller_enabled?
         end
 
         def can_uninstall?

lib/gitlab/kubernetes/helm.rb

@@ -10,6 +10,12 @@ module Gitlab
       SERVICE_ACCOUNT = 'tiller'
       CLUSTER_ROLE_BINDING = 'tiller-admin'
       CLUSTER_ROLE = 'cluster-admin'
+
+      MANAGED_APPS_LOCAL_TILLER_FEATURE_FLAG = :managed_apps_local_tiller
+
+      def self.local_tiller_enabled?
+        Feature.enabled?(MANAGED_APPS_LOCAL_TILLER_FEATURE_FLAG)
+      end
     end
   end
 end

lib/gitlab/kubernetes/helm/client_command.rb

@@ -59,7 +59,7 @@ module Gitlab
         end
 
         def local_tiller_enabled?
-          Feature.enabled?(:managed_apps_local_tiller)
+          ::Gitlab::Kubernetes::Helm.local_tiller_enabled?
         end
       end
     end