Use feature flag to decide how to run ZooKeeper server

Add flag to choose between reconfigurable ZooKeeper server or not for
the ZooKeeper server used by cluster controller

1 files changed, 2 insertions, 1 deletions

diff --git a/config-model-api/src/main/java/com/yahoo/config/model/api/ModelContext.java b/config-model-api/src/main/java/com/yahoo/config/model/api/ModelContext.java
index 0de802e19d4..1cf698af9cb 100644
--- a/config-model-api/src/main/java/com/yahoo/config/model/api/ModelContext.java
+++ b/config-model-api/src/main/java/com/yahoo/config/model/api/ModelContext.java
@@ -1,4 +1,4 @@
-// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+// Copyright Verizon Media. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
 package com.yahoo.config.model.api;
 
 import com.yahoo.component.Version;
@@ -81,6 +81,7 @@ public interface ModelContext {
         @ModelFeatureFlag(owners = {"baldersheim"}) default int contentNodeBucketDBStripeBits() { throw new UnsupportedOperationException("TODO specify default value"); }
         @ModelFeatureFlag(owners = {"baldersheim"}) default int mergeChunkSize() { throw new UnsupportedOperationException("TODO specify default value"); }
         @ModelFeatureFlag(owners = {"baldersheim"}) default double feedConcurrency() { throw new UnsupportedOperationException("TODO specify default value"); }
+        @ModelFeatureFlag(owners = {"musum", "mpolden"}, comment = "Revisit in February 2021") default boolean reconfigurableZookeeperServer() { return false; }
     }
 
     /** Warning: As elsewhere in this package, do not make backwards incompatible changes that will break old config models! */