Install CLI

wget https://github.com/kubeless/kubeless/releases/download/v1.0.2/kubeless_linux-amd64.zip
unzip kubeless_linux-amd64.zip
sudo mv bundles/kubeless_linux-amd64/kubeless /usr/local/bin
rm -r bundles/

Deploy kubeless

kubectl create ns kubeless
kubectl create -f https://github.com/kubeless/kubeless/releases/download/v1.0.2/kubeless-v1.0.2.yaml

Example function

python

kubeless function deploy hello --runtime python2.7 \
                               --from-file python-example/example.py \
                               --handler test.hello

NodeJS

kubeless function deploy myfunction --runtime nodejs6 \
                                --dependencies node-example/package.json \
                                --handler test.myfunction \
                                --from-file node-example/example.js

Commands

List Function

kubeless function ls

Call Function

kubeless function call myfunction --data 'This is some data'

Expose function

kubectl create -f nginx-ingress-controller-with-elb.yml
kubeless trigger http create myfunction --function-name myfunction --hostname myfunction.kubernetes.newtech.academy

PubSub

Kafka Installation

export RELEASE=$(curl -s https://api.github.com/repos/kubeless/kafka-trigger/releases/latest | grep tag_name | cut -d '"' -f 4)
kubectl create -f https://github.com/kubeless/kafka-trigger/releases/download/$RELEASE/kafka-zookeeper-$RELEASE.yaml

Deploy function

kubeless function deploy uppercase --runtime nodejs6 \
                                --dependencies node-example/package.json \
                                --handler test.uppercase \
                                --from-file node-example/uppercase.js

Trigger and publish

kubeless trigger kafka create test --function-selector created-by=kubeless,function=uppercase --trigger-topic uppercase
kubeless topic publish --topic uppercase --data "this message will be converted to uppercase"