Kubeless

Theory

• Kubeless is the Kubernetes Native serverless framework
• Allows to deploy functions without the need to build containers
• These functions can be called via regular HTTP(S) calls or triggered by events submitted to message brokers like Kafka

Practice

Command	Description
kubectl create ns kubeless	Create a kubeless namespace where you will install the controller
curl -sL https://github.com/kubeless/kubeless/releases/download/v0.3.0/kubeless-rbac-v0.3.0.yaml kubectl create -f -	Install the latest stable version with a kubectl create command
kubectl get pods -n kubeless	List pods
$ cat toy.py def handler(event): print event.json return event.json $ kubeless function deploy toy --runtime python2.7 --handler toy.handler --from-file toy.py --trigger-http	Deploy python function
kubeless function update toy --from-file toy-update.py	Update the function
kubeless function ls	List the function
kubeless function call toy --data '{"hello":"world"}'	Call the function
kubeless function logs toy	Get the logs of the function
kubeless function describe toy	Describe the function
kubeless function delete toy	Delete the function