How to Install MicroK8s on Ubuntu

If you are looking for an easy and reliable way to deploy Kubernetes on Ubuntu, then MicroK8s is the perfect solution for you. MicroK8s is a lightweight, secure, and reliable Kubernetes distribution that can be installed in minutes, and it provides out-of-the-box support for many popular cloud-native applications.

This article will show how to install MicorK8s on an Ubuntu server and access the Kubernetes dashboard in a few simple steps.

How to Install MicroK8s on Ubuntu

Steps to Install MicroK8s on Ubuntu

1. If you are using Ubuntu, you can directly install MicroK8s using snap. Use the “snap install microk8s” command to install microk8s quickly.

sudo snap install microk8s --classic
[sudo] password for ubuntu: 
microk8s (1.26/stable) v1.26.1 from Canonical✓ installed

2. Now add your ubuntu user to the microk8s group. Our user is ubuntu, so if you have any other user, use that instead of ubuntu.

ubuntu@ub21:~$ sudo usermod -a -G microk8s ubuntu

ubuntu@ub21:~$ id ubuntu
uid=1000(ubuntu) gid=1000(ubuntu) groups=1000(ubuntu),4(adm),24(cdrom),27(sudo),30(dip),46(plugdev),122(lpadmin),133(lxd),134(sambashare),1001(microk8s)

3. Update the firewall using the “ufw allow” command

ubuntu@ub21:~$ sudo ufw allow in on cni0 && sudo ufw allow out on cni0
sudo ufw default allow routed
Rules updated
Rules updated (v6)
Rules updated
Rules updated (v6)
Default routed policy changed to 'allow'
(be sure to update your rules accordingly)

4. At this point you should be able to run Kubernetes commands like “kubectl get” or “kubectl run“.

ubuntu@ub21:~$ microk8s kubectl get all --all-namespaces
NAMESPACE     NAME                                           READY   STATUS    RESTARTS   AGE
kube-system   pod/calico-node-mdnb9                          1/1     Running   0          5m36s
kube-system   pod/calico-kube-controllers-846484bf89-knvvb   1/1     Running   0          5m36s

default     service/kubernetes   ClusterIP   <none>        443/TCP   5m46s

kube-system   daemonset.apps/calico-node   1         1         1       1            1    5m43s

NAMESPACE     NAME                                      READY   UP-TO-DATE   AVAILABLE   AGE
kube-system   deployment.apps/calico-kube-controllers   1/1     1            1           5m43s

NAMESPACE     NAME                                                 DESIRED   CURRENT   READY   AGE
kube-system   replicaset.apps/calico-kube-controllers-79568db7f8   0         0         0       5m42s
kube-system   replicaset.apps/calico-kube-controllers-846484bf89   1         1         1       5m36s

You can also create your first pod after installing MicroK8s on Ubuntu.

buntu@ub21:~$ microk8s kubectl run nginx --image=nginx
pod/nginx created
ubuntu@ub21:~$ microk8s kubectl get po
nginx   1/1     Running   0          63s

Enable MicroK8s Dashboard, Core-dns & Local Storage

This installation comes with minimum components, so to enable other features such as DNS, dashboard, and local storage you will have to use the “microk8s enable” command

buntu@ub21:~$ microk8s enable dns dashboard storage
Infer repository core for addon dns
Infer repository core for addon dashboard
Infer repository core for addon storage
Enabling DNS
Using host configuration from /run/systemd/resolve/resolv.conf
Applying manifest
serviceaccount/coredns created
configmap/coredns created
deployment.apps/coredns created
service/kube-dns created
Infer repository core for addon hostpath-storage
Enabling default storage class.
WARNING: Hostpath storage is not suitable for production environments.

deployment.apps/hostpath-provisioner created created
serviceaccount/microk8s-hostpath created created created
Storage will be available soon.

Wait for a few seconds and all the desired services will be up and running.

Get MicroK8s Dashboard IP Address

Now, once all the services have started, you can get the IP of MicroK8s Kubernetes dashboard by running the kubectl command along with the grep command like the below command:

buntu@ub21:~$ microk8s kubectl get all -A  |grep -i "service/kubernetes-dashboard"
kube-system   service/kubernetes-dashboard        ClusterIP    <none>        443/TCP                  15m

Access MicroK8s Kubernetes Dashboard

As we can see the ClusterIP is and the port is 443, so now we can try to open that in our browser i.e ``

When you try to access the Kubernetes dashboard for the first time, it will ask for the token like the below screenshot.

MicroK8s dashboard login Screen

For the token, you can run the below command and paste it into the token section to access the MicroK8s dashboard.

token=$(microk8s kubectl -n kube-system get secret | grep default-token | cut -d " " -f1)
microk8s kubectl -n kube-system describe secret $token

This will look like below code:

ubuntu@ub21:~$ token=$(microk8s kubectl -n kube-system get secret | grep default-token | cut -d " " -f1)
microk8s kubectl -n kube-system describe secret $token
Name:         kubernetes-dashboard-certs
Namespace:    kube-system
Labels:       k8s-app=kubernetes-dashboard
Annotations:  <none>

Type:  Opaque


Name:         microk8s-dashboard-token
Namespace:    kube-system
Labels:       <none>
Annotations: default


ca.crt:     1123 bytes
namespace:  11 bytes
token:      eyJhbGciOiJSUzI1NiIsImtpZCI6ImllS09HeTBPMl9JeG1oZWZQVTlxazVIaFNVSFdvdV82UGw4ajcxVXdUTUkifQ.eyJpc3MiOiJrdWJlcm5ldGVzL3NlcnZpY2VhY2NvdW50Iiwia3ViZXJuZXRlcy5pby9zZXJ2aWNlYWNjb3VudC9uYW1lc3BhY2UiOiJrdWJlLXN5c3RlbSIsImt1YmVybmV0ZXMuaW8vc2VydmljZWFjY291bnQvc2VjcmV0Lm5hbWUiOiJtaWNyb2s4cy1kYXNoYm9hcmQtdG9rZW4iLCJrdWJlcm5ldGVzLmlvL3NlcnZpY2VhY2NvdW50L3NlcnZpY2UtYWNjb3VudC5uYW1lIjoiZGVmYXVsdCIsImt1YmVybmV0ZXMuaWvBx51tJ1ipzmFVZV3ZLkGnt92OfYv6p7Ig2CJjOyqw1QKbjvqa6LHionuWfEXjBHusLq5TwoelHcea_YHByR0zWS9CGpIlKTV-w3Dl_Vrc-Uv8LIeVfGW4t6yK6W22OtvDH8_W7fek0OXkQUf7s-39w

Name:         kubernetes-dashboard-csrf
Namespace:    kube-system
Labels:       k8s-app=kubernetes-dashboard
Annotations:  <none>

That’s it!

Once you are logged in, you will be able to see the running pods and other services.

MicroK8s dashboard


Installing MicroK8s on Ubuntu is a great way to quickly deploy a reliable Kubernetes cluster. We hope this tutorial has helped you in running MicroK8s on Ubuntu without any issues, but if you have any questions or concerns, please let us know through your comments.

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