ALB + HAProxy as Ingress controller
In this approach, the ALB points to an HAProxy Ingress Controller. The HAProxy Ingress Controller is exposed using ALB Ingress. This allows management of the HTTP + ODBC connection (See ODBC connection through Ingress in EKS).
The internal MarkLogic Load Balancer is exposed using Ingress and is managed by the HAProxy Ingress Controller. IngressClass is used to split the Ingress management.