MicroK8s Kubernetes Single Node Cluster
2 min readMar 29, 2020
What is MicroK8s?
MicroK8s is a CNCF certified upstream Kubernetes deployment that runs entirely on your workstation or edge device. Being a snap it runs all Kubernetes services natively (i.e. no virtual machines) while packing the entire set of libraries and binaries needed. Installation is limited by how fast you can download a couple of hundred megabytes and the removal of MicroK8s leaves nothing behind.
What you need to Install ?
A Linux machine
Deploying microK8s
If you are using Ubuntu follow the below steps and you will see all the nodes and services running for you
sudo snap install microk8s --classic --channel=1.17/stable
sudo usermod -a -G microk8s $USER
su - $USER
microk8s.status --wait-ready
microk8s.kubectl get nodes
microk8s.kubectl get servicesOpen the firewalls sudo ufw allow in on cni0 && sudo ufw allow out on cni0
sudo ufw default allow routed
Host your first service on microK8s
Deploy microbot with 2 pods
microk8s.kubectl create deployment microbot --image=dontrebootme/microbot:v1
microk8s.kubectl scale deployment microbot --replicas=2expose the deployment with nodeport
microk8s.kubectl expose deployment microbot --type=NodePort --port=80 --name=microbot-serviceget all namespaces
microk8s.kubectl get all --all-namespacesyou will get something like this
default service/microbot-service NodePort 10.152.183.12 <none> 80:31421/TCP 10m
Check if the service is working ?
open any browser and type http://localhost:31421 , you should see the below image with pod detail
