Consul Based Discovery Plugin for Elasticsearch

Uses Consul API for Elasticsearch discovery

Installation

Do vagrant up, vagrant ssh and then run mvn package to build.

The plugin ZIP will be under target/releases/

Do

bin/plugin --url file:///path-to-plugin-zip --install lithiumtech/elasticsearch-consul-discovery

to install plugin.

For easy provisioning, an RPM file is created under target/rpm if you do mvn package rpm:rpm. The plugin ZIP will be under /usr/local/lib when the RPM has been installed.

Configuration

discovery:
  type: consul
  consul:
    service-names: ["CONSUL_SERVICE_NAME1", "CONSUL_SERVICE_NAME2"]
    tag:  OPTIONAL_TAG_TO_FILTER_NODES
    local-ws-port:  OPTIONAL_TO_SPECIFY_LOCAL_HTTP_API_PORT_FOR_CONSUL_DEFAULT_IS_8500

Key	Example	Description
discovery.consul.service-names	es-dc01-teamA-cluster01-data-nodes	an array of service names those are registered in consul
discovery.consul.tag	searcher	Optional parameter tag to filter nodes registered for given service names, read more..
discovery.consul.local-ws-port	8500	Optional parameter to specify the rest web end point's port on localhost for consul. default value is 8500 [read more...] (https://www.consul.io/docs/agent/options.html#http_port)

This plugin is based on https://github.com/grantr/elasticsearch-srv-discovery and modified to be based on consul API calls instead of DNS records.