Use the clustering logic we use with rabbit.
Set the hosts like elasticsearch expects.
A play to build the elasticsearch server.
Adding template for defaults.
Moving template to standard structure.
Moved, removing.
Reasonable working version.
Basic play for stage.
Relocating.
relocating.
Code review comments.
checking if the downloaded archive has changed.
Changing the service state.
Merge pull request #738 from edx/e0d/es-cluster

E0d/es cluster