Vault is configured with the userpass auth method and you need to log in using the CLI. What command would you use to authenticate so you can make configuration changes to Vault?
Tommy has written an AWS Lambda function that will perform certain tasks for the organization when data has been uploaded to an S3 bucket. Security policies for the organization do not allow Tommy to hardcode any type of credential within the Lambda code or environment variables. However, Tommy needs to retrieve a credential from Vault to write data to an on-premises database.
What auth method should Tommy use in Vault to meet the requirements while not violating security policies?