Remove deprecated environment variables. Fixes pires#40

Signed-off-by: Paulo Pires <[email protected]>

Author: pires

Dockerfile

@@ -15,5 +15,4 @@ RUN ./elasticsearch/bin/elasticsearch-plugin install -b com.floragunn:search-gua
 RUN ./elasticsearch/bin/elasticsearch-plugin install repository-s3
 
 # Set environment
-ENV NAMESPACE default 
 ENV DISCOVERY_SERVICE elasticsearch-discovery

README.md

@@ -19,5 +19,4 @@ This image can be configured by means of environment variables, that one can set
 
 Besides the [inherited ones](https://github.com/pires/docker-elasticsearch#environment-variables), this container image provides the following:
 
-* [DISCOVERY_SERVICE](https://github.com/fabric8io/elasticsearch-cloud-kubernetes#kubernetes-pod-discovery)
-* [NAMESPACE](https://github.com/fabric8io/elasticsearch-cloud-kubernetes#kubernetes-pod-discovery)
+* `DISCOVERY_SERVICE` - the service to be queried for through DNS.