etcd3: Allow for multi-host deployments

In Multi host deployments, it is possible to run ETCD in a different
host than the SERVICE_HOST (where all the controllers run). This patch
brings that distinction.

Change-Id: I15fe6f25eedf1efebaab81cce26b080577b856cc
Signed-off-by: Antoni Segura Puimedon <antonisp@celebdor.com>
1 file changed