Prerequisite: You need to have a working multipass, and preferably a Linux-based host. (I'm using WSL 😎 )
Then follow the steps to create the virtual machines and follow by create the k3s cluster. K3s promises to be a lightweight K8s.
Here are the tools used and the description.
| Tools | Description |
|---|---|
| Multipass | It's a system that orchestrates the creation, management and maintenance of virtual machines and associated Ubuntu images to siplify development. |
| K3s | K3s is a certified Kubernetes distribution designed for production workloads in unattended, resource-constrained, remote locations or inside IoT appliances. |
First, we need 1 master node (kmaster) and 2 worker nodes (kworker1 and kworker2).
$ multipass launch --name kmaster
$ multipass launch --name kworker1
$ multipass launch --name kworker2
Second, we need to create the K3s cluster.
$ multipass exec kmaster -- /bin/bash -c "curl -sfL https://get.k3s.io | sh -"
$ K3S_NODEIP_MASTER="https://kmaster.mshome.net:6443"
$ K3S_TOKEN="$(multipass exec kmaster -- /bin/bash -c "sudo cat /var/lib/rancher/k3s/server/node-token")"
$ multipass exec kworker1 -- /bin/bash -c "curl -sfL https://get.k3s.io | K3S_TOKEN=${K3S_TOKEN} K3S_URL=${K3S_NODEIP_MASTER} sh -"
$ multipass exec kmuworker2 -- /bin/bash -c "curl -sfL https://get.k3s.io | K3S_TOKEN=${K3S_TOKEN} K3S_URL=${K3S_NODEIP_MASTER} sh -"
Last, let's examine the status.
$ multipass list
kmaster Running 172.22.64.124 Ubuntu 22.04 LTS
10.42.0.0
10.42.0.1
kworker1 Running 172.22.70.140 Ubuntu 22.04 LTS
10.42.1.0
10.42.1.1
kworker2 Running 172.22.65.28 Ubuntu 22.04 LTS
10.42.2.0
10.42.2.1
And check if everything is working.
$ multipass exec kmaster sudo kubectl get nodes
NAME STATUS ROLES AGE VERSION
kmaster Ready control-plane,master 19m v1.24.6+k3s1
kworker1 Ready <none> 80s v1.24.6+k3s1
kworker2 Ready <none> 46s v1.24.6+k3s1
 |
| kubectl get nodes |
In less than 10 min, we just setup 1 master and 2 worker nodes. Let's continue on other configuration at K3S Configuration Options.
Links: