Updating TopologyCache to disregard unready endpoints in calculations

pkg/controller/util/endpointslice/utils.go

@@ -0,0 +1,27 @@
+/*
+Copyright 2021 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package endpointslice
+
+import (
+	discovery "k8s.io/api/discovery/v1"
+)
+
+// EndpointReady returns true if an Endpoint has the Ready condition set to
+// true.
+func EndpointReady(endpoint discovery.Endpoint) bool {
+	return endpoint.Conditions.Ready != nil && *endpoint.Conditions.Ready
+}