Quick Questions regarding go-discover

[FalcoSuessgott]

Hello Robert,

nice work! I am really liking the module, documentation and testing.

Studying the repo, I can see that you use the auto-join feature to automatically join other EC2 instances. Studying https://github.com/hashicorp/go-discover I can see that for the auth to AWS the access_key and secret_key are required (https://github.com/hashicorp/go-discover/blob/8b3ddf4/provider/aws/aws_discover.go#L19-L34).

I can't find how you pass these secrets to the EC2 instances, neither in the Vault Config nor to the Vault SystemD Unit as an environment file, hence I was hoping you could quickly guide me to the point where you pass these values into the EC2 instances :)

Best,

Tom