Use DescribeListenerCertificates with a CLI

To describe the certificates for a secure listener

This example describes the certificates for the specified secure listener.

Command:

aws elbv2 describe-listener-certificates --listener-arn arn:aws:elasticloadbalancing:us-west-2:123456789012:listener/app/my-load-balancer/50dc6c495c0c9188/f2f7dc8efc522ab2

Output:

{
  "Certificates": [
      {
          "CertificateArn": "arn:aws:acm:us-west-2:123456789012:certificate/5cc54884-f4a3-4072-80be-05b9ba72f705",
          "IsDefault": false
      },
      {
          "CertificateArn": "arn:aws:acm:us-west-2:123456789012:certificate/3dcb0a41-bd72-4774-9ad9-756919c40557",
          "IsDefault": false
      },
      {
          "CertificateArn": "arn:aws:acm:us-west-2:123456789012:certificate/fe59da96-6f58-4a22-8eed-6d0d50477e1d",
          "IsDefault": true
      }
  ]
}

Example 1: This examples describes the certificate for the specified listener.

Get-ELB2ListenerCertificate -ListenerArn 'arn:aws:elasticloadbalancing:us-east-1:123456789012:listener/app/test-alb/3651b4394dd9a24f/66e10e3aaf5b6d9b'

Output:

CertificateArn                                                                      IsDefault
--------------                                                                      ---------
arn:aws:acm:us-east-1:123456789012:certificate/5fc7c092-68bf-4862-969c-22fd48b6e17c True