SERVER-33751 Allow connecting to an existing cluster in ReplSetTest

1 files changed, 5 insertions, 1 deletions

diff --git a/src/mongo/shell/replsettest.js b/src/mongo/shell/replsettest.js
index 8557900e4ad..9d6a4378009 100644
--- a/src/mongo/shell/replsettest.js
+++ b/src/mongo/shell/replsettest.js
@@ -1885,7 +1885,11 @@ var ReplSetTest = function(opts) {
      * Constructor, which instantiates the ReplSetTest object from an existing set.
      */
     function _constructFromExistingSeedNode(seedNode) {
-        var conf = _replSetGetConfig(new Mongo(seedNode));
+        const conn = new Mongo(seedNode);
+        if (jsTest.options().keyFile) {
+            self.keyFile = jsTest.options().keyFile;
+        }
+        var conf = asCluster(conn, () => _replSetGetConfig(conn));
         print('Recreating replica set from config ' + tojson(conf));
 
         var existingNodes = conf.members.map(member => member.host);