1 files changed, 7 insertions, 2 deletions
diff --git a/app/models/clusters/applications/prometheus.rb b/app/models/clusters/applications/prometheus.rb
index ac9ea707f62..8a135237b89 100644
--- a/app/models/clusters/applications/prometheus.rb
+++ b/app/models/clusters/applications/prometheus.rb
@@ -40,15 +40,20 @@ module Clusters
       end
 
       def proxy_client
-        return unless cluster.kubeclient
+        return unless kube_client
 
-        kube_client = cluster.kubeclient
         proxy_url = kube_client.proxy_url('service', service_name, service_port, Gitlab::Kubernetes::Helm::NAMESPACE)
 
         # ensures headers containing auth data are appended to original k8s client options
         options = kube_client.rest_client.options.merge(headers: kube_client.headers)
         RestClient::Resource.new(proxy_url, options)
       end
+
+      private
+
+      def kube_client
+        cluster&.kubeclient
+      end
     end
   end
 end