Merge branch '42643-persist-external-ip-of-ingress-controller-gke' into 'master'

Display ingress IP address in the Kubernetes page

See merge request gitlab-org/gitlab-ce!17052

1 files changed, 36 insertions, 0 deletions

diff --git a/app/services/clusters/applications/check_ingress_ip_address_service.rb b/app/services/clusters/applications/check_ingress_ip_address_service.rb
new file mode 100644
index 00000000000..e572b1e5d99
--- /dev/null
+++ b/app/services/clusters/applications/check_ingress_ip_address_service.rb
@@ -0,0 +1,36 @@
+module Clusters
+  module Applications
+    class CheckIngressIpAddressService < BaseHelmService
+      include Gitlab::Utils::StrongMemoize
+
+      Error = Class.new(StandardError)
+
+      LEASE_TIMEOUT = 15.seconds.to_i
+
+      def execute
+        return if app.external_ip
+        return unless try_obtain_lease
+
+        app.update!(external_ip: ingress_ip) if ingress_ip
+      end
+
+      private
+
+      def try_obtain_lease
+        Gitlab::ExclusiveLease
+          .new("check_ingress_ip_address_service:#{app.id}", timeout: LEASE_TIMEOUT)
+          .try_obtain
+      end
+
+      def ingress_ip
+        service.status.loadBalancer.ingress&.first&.ip
+      end
+
+      def service
+        strong_memoize(:ingress_service) do
+          kubeclient.get_service('ingress-nginx-ingress-controller', Gitlab::Kubernetes::Helm::NAMESPACE)
+        end
+      end
+    end
+  end
+end