Question

You want to create a CloudWatch Events rule that triggers an SNS topic only when an EC2 instance changes state to either "pending" or "shutting-down". Which JSON event pattern correctly achieves this?

Accepted Answer

{"source": ["aws.ec2"], "detail-type": ["EC2 Instance State-change Notification"], "detail": {"state": ["pending", "shutting-down"]}}

Answer

{"source": ["aws.ec2"], "detail-type": ["EC2 Instance State-change Notification"], "detail": {"status": ["pending", "shutting-down"]}}

Answer

{"source": ["aws.ec2"], "detail-type": ["EC2 Instance State-change Notification"], "detail": {"state": ["running", "stopped"]}}

Answer

{"source": ["aws.ec2"], "detail-type": ["EC2 Instance Launch Notification"], "detail": {"state": ["pending", "shutting-down"]}}

You want to create a CloudWatch Events rule that triggers an SNS topic only when an EC2 instance changes state to either "pending" or "shutting-down". Which JSON event pattern correctly achieves this?

Step 1: Confirm correct event source and detail-type

Step 2: Verify the detail key and values

Final Answer:

Quick Check:

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