NXP-28131 we can run unit test against a remote elastic.
The elastic client connects to the specified cluster, nevertheless an embedded node is started.
How to check:
1. make sure you don't have any elasticsearch server running
The test pass instead of failing because an embedded node is started.
Note that if you have an elastic running on localhost:9200 prior to run the test, the test will use your elastic server as expected (the embeded server is started on another port).