AWS OpsWorks
User Guide (API Version 2013-02-18)

List a Stack's Elastic IP Addresses (describe-elastic-ips)

Use the describe-elastic-ips command to list the Elastic IP addresses that have been registered with a stack or get details about specified Elastic IP addresses.

aws opsworks --region us-west-2 describe-elastic-ips --instance-id b62f3e04-e9eb-436c-a91f-d9e9a396b7b0

The preceding command returns a JSON object that contains details about each Elastic IP address (one in this example) for a specified instance. For a description of each parameter, see describe-elastic-ips.

{ "ElasticIps": [ { "Ip": "", "Domain": "standard", "Region": "us-west-2" } ] }