Questions
How to attach Elastic Beanstalk instance to Application Load Balancer (ALB)?
Why is ALB ignored and AWS creates a new Classic LB?
The AWS Elastic Beanstalk Configuring an Application Load Balancer documentation says:
You can set the load balancer type only during environment creation using the EB CLI, the Elastic Beanstalk APIs, or using .ebextensions like the one in the example
.ebextensions/application-load-balancer.config
; the console does not support this functionality.