Merge branch 'more-helm-install-error-logs' into 'master'

Add more logging for errors with kubernetes on helm install

See merge request gitlab-org/gitlab-ce!22848

app/services/clusters/applications/check_installation_progress_service.rb

@@ -14,7 +14,8 @@ module Clusters
         else
           check_timeout
         end
-      rescue Kubeclient::HttpError
+      rescue Kubeclient::HttpError => e
+        Rails.logger.error "Kubernetes error: #{e.class.name} #{e.message}"
         app.make_errored!("Kubernetes error") unless app.errored?
       end
 
@@ -51,7 +52,8 @@ module Clusters
 
       def remove_installation_pod
         helm_api.delete_pod!(install_command.pod_name)
-      rescue
+      rescue => e
+        Rails.logger.error "Kubernetes error: #{e.class.name} #{e.message}"
         # no-op
       end
 

app/services/clusters/applications/install_service.rb

@@ -12,9 +12,11 @@ module Clusters
 
           ClusterWaitForAppInstallationWorker.perform_in(
             ClusterWaitForAppInstallationWorker::INTERVAL, app.name, app.id)
-        rescue Kubeclient::HttpError
+        rescue Kubeclient::HttpError => e
+          Rails.logger.error "Kubernetes error: #{e.class.name} #{e.message}"
           app.make_errored!("Kubernetes error.")
-        rescue StandardError
+        rescue StandardError => e
+          Rails.logger.error "Can't start installation process: #{e.class.name} #{e.message}"
           app.make_errored!("Can't start installation process.")
         end
       end