Which of the following open source solutions provide Serverless functionality on top of Kubernetes?

Which of the following open source solutions provide Serverless functionality on top of Kubernetes?

• A. Knative and OpenFaas
• B. Kubeless
• C. OpenFaaS only
• D. Knative only

Answer: (A)

Serverless on Kubernetes is about platforms that run on top of Kubernetes to manage function deployment, automatic scaling (including scale-to-zero), routing, and event handling. Knative and OpenFaaS are two widely adopted open-source solutions that fit this role. Knative provides a unified Serving layer that auto-scales functions from zero to meet demand and handles traffic routing and revision management, plus Eventing for event-driven workflows. OpenFaaS emphasizes a simple, function-centric model with easy deployment and built-in autoscaling across multiple runtimes, making it quick to get functions running on any Kubernetes cluster. Together they represent the most established, actively developed Kubernetes-native serverless options, which is why this combination is considered the best answer. Kubeless exists as another Kubernetes serverless option, but it’s not the pair highlighted here.

Serverless on Kubernetes is about platforms that run on top of Kubernetes to manage function deployment, automatic scaling (including scale-to-zero), routing, and event handling. Knative and OpenFaaS are two widely adopted open-source solutions that fit this role. Knative provides a unified Serving layer that auto-scales functions from zero to meet demand and handles traffic routing and revision management, plus Eventing for event-driven workflows. OpenFaaS emphasizes a simple, function-centric model with easy deployment and built-in autoscaling across multiple runtimes, making it quick to get functions running on any Kubernetes cluster. Together they represent the most established, actively developed Kubernetes-native serverless options, which is why this combination is considered the best answer. Kubeless exists as another Kubernetes serverless option, but it’s not the pair highlighted here.