Do you support sig4 auth headers for AWS Elasticsearch?
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Does FusionAuth support sig4 auth headers for an aws hosted elasticsearch domain?
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If you are using https://aws.amazon.com/elasticsearch-service/ for your Elasticsearch server, you can access it via AWS APIs and use IAM to control access: https://docs.aws.amazon.com/elasticsearch-service/latest/developerguide/es-ac.html
However, FusionAuth doesn't currently support the AWS signature for Elasticsearch requests.
The recommended way of securing such clusters is to place it in a private subnet and restricting traffic to it using a security group. More information: https://fusionauth.io/docs/v1/tech/installation-guide/securing#fusionauth-search
If you have to make it public to make it accessible to resources outside if AWS you could use a source IP lock, a VPN, basic auth if AWS supports it, or you could proxy the request perhaps to another endpoint that can build the AWS sig v4 header.
