Install Knative in Civo Kubernetes (v1.20.2+k3s1)

Hi gangs, today we will learn how to Install Knative in Civo Kubernetes.

This tutorial still uses the old version of Kubernetes, use command below to create the cluster

civo kubernetes create kube-demo -v 1.20.2-k3s1 --wait

Let's clone the repo below

git clone https://github.com/ludesdeveloper/civo-knative.git

Change directory to civo-knative

cd civo-knative

Run install-knative.sh script

./install-knative.sh

You can take a look detailed code in that script, what I want to mention is the kubectl delete svc traefik -n kube-system command in the script. After a few tries, I can not make istio-ingressgateway to get external-ip, so I decide to remove traefik, and it works, istio-ingressgateway get its external-ip.

Now Let's take a look at our cluster.

Everything looks good :)

Now lets we apply some example

kubectl apply -f autoscaling-service-example.yaml

As you can see, now we have Replicasets pods are ready.

Let's test our serverless load, but first, we need to install hey load generator

go get -u github.com/rakyll/hey

Run script below for testing

./auto-scaling-testing.sh

As you can see, pods are created when we try to test. Then what we need to do is wait until pods are disappearing.

After a few seconds, we can see that pods have now disappeared. We also can see the output of hey