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

Seski Ramadhan — Mon, 21 Feb 2022 16:33:41 +0000

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

My Shortcut / Alias to Use Civo Kubernetes

Seski Ramadhan — Mon, 21 Feb 2022 14:17:50 +0000

Hi gangs, today I will share about my alias setup for Civo Cloud.

alias civo_create="civo kubernetes create kube-demo --wait && rm ~/.kube/config && civo kubernetes config kube-demo --save"

This first alias is for provision new kubernetes cluster(kube-demo) with basic configuration, and I also remove kube config file for easily replace new config with the new one.

alias civo_remove="civo kubernetes remove kube-demo"

This alias is for removing cluster when I finish my learning / project. Let's we try this alias

civo_create

As you can see, I just issue command civo_create and cluster created in just 1 minute 58 sec, How cool is that!

Now Let's remove our cluster

civo_remove

Just like that, then we say good bye to our cluster :)

DEV Community: Seski Ramadhan

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

My Shortcut / Alias to Use Civo Kubernetes