This plugin provides an extension of ElasticSearchs HTTP Transport module to enable HTTP Basic authorization.
Copy elasticsearch-http-basic-<version>.jar to plugins/http-basic. Or use bin/plugin to do so.
The plugin is disabled by default. Enabling basic authorization will disable the default HTTP Transport module.
http.basic.enabled = true
http.basic.user = "my_username"
http.basic.password = "my_password"
Be aware that the password is stored in plain text.