fluentdからAmazon Elasticsearch ServiceにPOSTする ref: http://qiita.com/hotakasaito/items/b59c28ca032b45b9ae49

file0.txt

sudo td-agent-gem install fluent-plugin-aws-elasticsearch-service

file1.txt

<match **.**>
  type copy

  <store>
    type aws-elasticsearch-service
    type_name access_log
    logstash_format true
    include_tag_key true
    tag_key @log_name
    flush_interval 10s

    <endpoint>
       url https://search-***.ap-northeast-1.es.amazonaws.com
       region ap-northeast-1
       access_key_id ***
       secret_access_key ***
    </endpoint>
  </store>
</match>

file2.txt

{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Effect": "Allow",
      "Principal": {
        "AWS": [
          "arn:aws:iam::***:user/***"
        ]
      },
      "Action": "es:*",
      "Resource": "arn:aws:es:ap-northeast-1:***:domain/***/*"
    }
  ]
}