What is Kubeless?

Kubeless is an open source serverless framework based on Kubernetes. It allows us to deploy and execute a piece of code without worrying about the underlying infrastructure. It uses the resources of Kubernetes to provide autoscaling, routing, and monitoring. Post-deployment functions can be triggered with pub–sub, HTTP, and scheduling.  The pub–sub events are managed through a Kafka cluster, an out-of-the-box component within Kubeless, which consists of a basic Kafka cluster with a broker and a zookeeper. HTTP triggers are available through the Kubernetes services, and schedule functions translate to a cron job. The languages/runtime supported by Kubeless are python2.7, python3.4, python3.6, nodejs6, nodejs8, nodejs_distroless8, ruby2.4, php7.2, go1.10, dotnetcore2.0, java1.8, ballerina0.980.0, and jvm1.8. Kubeless also supports HTTP, NATS, Kafka, cron, and stream triggers. 

Kubeless architecture

Kubeless uses custom resource definition, which means that when you create a...