Unable to connect to opensearch using "aws-elasticsearch-service" plugin

[hasinireddy24]

2022-04-01 07:23:19 +0000 [error]: #0 unexpected error error_class=Aws::Errors::NoSuchProfileError error="Profile `default' not found in /root/.aws/credentials or /root/.aws/config"

I'm using the "aws-elasticsearch-service" plugin in my fluentd configuration

<match kubernetes>
        @type aws-elasticsearch-service
        ssl_verify false
        @log_level debug
        logstash_format true
        logstash_prefix jb-app-log-java # defaults to "logstash"
        logstash_prefix_separator -     # defaults to "-"
        logstash_dateformat %Y.%m       # defaults to "%Y.%m.%d" 
        <endpoint>
          url    "https://xxxxxxxx"
          region "xxxxxxxx"          
        </endpoint>
        <buffer>
          @type memory
        </buffer>
      </match>

I'm not using any other credentials in my configuration. Ideally it should use the EC2 instance node role to connect to opensearch.

I deployed the fluentd in EKS.

When I try to connect with "opensearch" plugin I was able to connect without any credentionals i have connected only with the node role. But with the "opensearch" plugin I'm getting "The security token included in the request is expired". So I'm trying to switch to aws-elasticsearch plugin.

Please help me with the solution.

Thanks in advance!