[[discovery]] == Discovery Plugins Discovery plugins extend Elasticsearch by adding new discovery mechanisms that can be used instead of {ref}/modules-discovery-zen.html[Zen Discovery]. [float] ==== Core discovery plugins The core discovery plugins are: <>:: The EC2 discovery plugin uses the https://github.com/aws/aws-sdk-java[AWS API] for unicast discovery. <>:: The Azure discovery plugin uses the Azure API for unicast discovery. <>:: The Google Compute Engine discovery plugin uses the GCE API for unicast discovery. [float] ==== Community contributed discovery plugins A number of discovery plugins have been contributed by our community: * https://github.com/grantr/elasticsearch-srv-discovery[DNS SRV Discovery Plugin] (by Grant Rodgers) * https://github.com/shikhar/eskka[eskka Discovery Plugin] (by Shikhar Bhushan) * https://github.com/grmblfrz/elasticsearch-zookeeper[ZooKeeper Discovery Plugin] (by Sonian Inc.) * https://github.com/fabric8io/elasticsearch-cloud-kubernetes[Kubernetes Discovery Plugin] (by Jimmi Dyson, http://fabric8.io[fabric8]) include::discovery-ec2.asciidoc[] include::discovery-azure.asciidoc[] include::discovery-gce.asciidoc[]