* Make sure there are no duplicates in etcd member list
Signed-off-by: galal-hussein <hussein.galal.ahmed.11@gmail.com>

* fix node names with hyphens
Signed-off-by: galal-hussein <hussein.galal.ahmed.11@gmail.com>

* use full server name for etcd node name
Signed-off-by: galal-hussein <hussein.galal.ahmed.11@gmail.com>