This repository is extends of https://github.com/uken/fluent-plugin-elasticsearch/ which made connectable to Amazon Elassticsearch Service using Aws Signers V4. Please check the requirements to connect to Amazon Elassticsearch Service without using Aws Signers V4 for before starting use. (reference https://groups.google.com/forum/#!msg/fluentd/uW87VAOqxeE/cfhenicEBAAJ)
secret_access_keyis already masked at #55, and it would be better to maskaccess_key_idas well.