* Tribe node security tests with external clusters
This PR adds a qa module for security tests with tribe node
using external clusters. Existing SecurityTribeIT tests
have been ported to use external clusters with tribe setup
as a first step.
Currently the ports to the external clusters are passed to the
integration tests through system properties and external clusters
are built on test setup (the code for building external clusters is
copied from ESIntegTestCase). This is a WIP as we need a
more generic way to facilitate testing tribe setup with external
clusters. thoughts welcome.
* incorporate feedback
* update to master
Original commit: elastic/x-pack-elasticsearch@686887ca91
Areek Zillur