When provisioning the new jessie based Elasticsearch backends for the production Logstash cluster I had to manually curl http://apt.wikimedia.org/wikimedia/pool/thirdparty/e/elasticsearch/elasticsearch_1.3.6_all.deb and install the deb with dpkg (T97645). We should get our local apt repo updated to include the more modern Elasticsearch debs in the jessie index.
Needed debs: