An AWS customer is deploying an application mat is composed of an AutoScaling group of EC2 Instances.
The customers security policy requires that every outbound connection from these instances to any other
service within the customers
Virtual Private Cloud must be authenticated using a unique x 509 certificate that contains the specific instanceid.
In addition an x 509 certificates must Designed by the customer’s Key management service in order to be
trusted for authentication.
Which of the following configurations will support these requirements?
A.
Configure an IAM Role that grants access to an Amazon S3 object containing a signed certificate and
configure me Auto Scaling group to launch instances with this role Have the instances bootstrap get the
certificate from Amazon S3 upon first boot.
B.
Embed a certificate into the Amazon Machine Image that is used by the Auto Scaling group Have the
launched instances generate a certificate signature request with the instance’s assigned instance-id to the
Key management service for signature.
C.
Configure the Auto Scaling group to send an SNS notification of the launch of a new instance to the trusted
key management service. Have the Key management service generate a signed certificate and send it
directly to the newly launched instance.
D.
Configure the launched instances to generate a new certificate upon first boot Have the Key management
service poll the AutoScaling group for associated instances and send new instances a certificate signature
(hat contains the specific instance-id.
c
Correct – C.
See:
http://jayendrapatil.com/tag/iam/
http://www.aiotestking.com/amazon/which-of-the-following-configurations-will-support-these-requirements/
C
In the real world, I would do B. The request would come from the newly launched instance to the KMS, and the response stored locally on the newly launched instance. I’ve never seen a KMS that can push a client certificate into the trusted certificate store of a remote computer.
C.