The Azure Cloud plugin uses the Azure API for unicast discovery, and adds support for using Azure as a repository for Snapshot/Restore.
This plugin can be installed using the plugin manager:
sudo bin/plugin install cloud-azure
The plugin must be installed on every node in the cluster, and each node must be restarted after installation.
This plugin can be downloaded for offline install from https://download.elastic.co/elasticsearch/release/org/elasticsearch/plugin/cloud-azure/2.4.6/cloud-azure-2.4.6.zip.
The plugin can be removed with the following command:
sudo bin/plugin remove cloud-azure
The node must be stopped before removing the plugin.