title: When to use AWS Lambda and when to use Kubernetes (EKS)?
body: <p>We are trying to evaluate the best ways to scale our J2EE web application and use hosting services with AWS.  Are there reasons why we would use the Lambda service over Kubernetes (EKS)?  Although it seems that Lambda can scale functional units, I'm not clear why anyone would use that as a substitute for Kubernetes, given Kubernetes can replicate containers based on performance metrics.</p>