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What is MicroK8s used for?

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What is MicroK8s used for

MicroK8s is a lightweight, fast and reliable Kubernetes distribution that enables developers and system administrators to deploy and manage containerized applications with ease. It is a popular option for small scale Kubernetes deployment, testing and development. In this article, we will explore the various use cases of MicroK8s and provide a detailed guide on how to get started.

Table of Contents

  • Use Cases of MicroK8s
  • Setting up MicroK8s on Linux
  • Deploying Applications with MicroK8s
  • Managing MicroK8s Cluster

Use Cases of MicroK8s:

  1. Testing and Development: MicroK8s provides a lightweight and fast way to test and develop Kubernetes applications in a local environment. With MicroK8s, developers can quickly spin up a Kubernetes cluster on their local machine and test their applications before deploying them to a production environment.

  2. IoT and Edge Computing: MicroK8s is an excellent choice for IoT and edge computing scenarios where resources are limited. It can be deployed on small devices such as Raspberry Pi and can run with as little as 512MB of RAM.

  3. Education and Training: MicroK8s is an ideal tool for teaching Kubernetes to students and beginners. It provides a simple and easy-to-use platform for learning Kubernetes without the need for expensive cloud resources.

Setting up MicroK8s on Linux:

To set up MicroK8s on Linux, follow these steps:

  1. Update your package index and install snapd:
sudo apt update
sudo apt install snapd
  1. Install MicroK8s:
sudo snap install microk8s --classic
  1. Check the status of MicroK8s:
microk8s status --wait-ready
  1. Add your user to the MicroK8s group:
sudo usermod -aG microk8s $USER
sudo chown -f -R $USER ~/.kube
  1. Verify that MicroK8s is working correctly:
microk8s kubectl get nodes

Deploying Applications with MicroK8s:

To deploy an application with MicroK8s, follow these steps:

  1. Create a deployment file, for example:
apiVersion: apps/v1
kind: Deployment
name: nginx-deployment
replicas: 1
app: nginx
app: nginx
- name: nginx
image: nginx:1.16
- containerPort: 80
  1. Deploy the application:
microk8s kubectl apply -f deployment.yaml
  1. Check the status of the deployment:
microk8s kubectl get pods

Managing MicroK8s Cluster:

To manage MicroK8s cluster, follow these steps:

  1. Enable add-ons such as DNS and storage:
microk8s enable dns storage
  1. Disable add-ons:
microk8s disable dns storage
  1. View the logs of a pod:
microk8s kubectl logs [pod-name]
  1. View the status of a pod:
microk8s kubectl describe pod [pod-name]
  1. Delete a deployment:
microk8s kubectl delete deployment [deployment-name]

MicroK8s is a versatile and easy-to-use Kubernetes distribution that is ideal for testing, development, and education purposes.

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  • That's it for this post. Keep practicing and have fun. Leave your comments if any.

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