Authentication Method

You can specify the authentication method that Transformer uses to connect to an EMR cluster. When you start the pipeline, Transformer uses the specified instance profile or AWS access key to launch the Spark application.

Transformer can authenticate in the following ways:

Instance profile: When Transformer runs on an Amazon EC2 instance that has an associated instance profile, Transformer uses the instance profile credentials to automatically authenticate with AWS.; For more information about associating an instance profile with an EC2 instance, see the Amazon EC2 documentation.
AWS access keys: When Transformer does not run on an Amazon EC2 instance or when the EC2 instance doesn’t have an instance profile, you can authenticate using an AWS access key pair. When using an AWS access key pair, you specify the access key ID and secret access key to use.
Tip: To secure sensitive information, you can use credential stores or runtime resources.
None: You can optionally choose to connect anonymously using no authentication.