Updated Dockerfile.
Updated Dockerfile.

jainishshah17/elasticsearch,n42corp/elasticsearch,CanTireInnovations/docker-elasticsearch,rednut/docker-elasticsearch,gogeolbs/elasticsearch,nautsio/consul-elasticsearch,crccheck/docker-pod,crccheck/docker-pod,rednut/docker-elasticsearch,cargonauts/consul-elasticsearch,eliotk/elasticsearch-docker-beta,crccheck/docker-pod,yaronr/elasticsearch,kastner/elasticsearch-docker,rednut/docker-elasticsearch,rednut/docker-elasticsearch,LastManStanding/elasticsearch