How to replace RubyOnRails credentials in AWS Elasticsearch?

Question

Ruby on Rails

Hello!
My ROR application is hosted on AWS EC2 and uses the Elasticsearch domain.
I accidentally flashed the keys and had to delete the user and create a new one.
S3 accepted new keys normally and gives pictures. But Elastic does not want to.
Bugsnag caught an error: Elasticsearch::Transport::Transport::Errors::Forbidden welcome#index
[403] {"message":"The security token included in the request is invalid."}
Tell me where this token is and how to get it update?
Is it related to IAM at all?

Answer 1

The problem was IAM rights. I rechecked and the error was there. It was just necessary to add the user the right to use ES.