What is Kubernetes
Kubernetes clusters host containerised applications in a reliable and scalable way. Having DevOps in mind, Kubernetes makes maintenance tasks such as upgrades dead simple.
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.
In this tutorial you’ll learn how to…
- Get your Kubernetes cluster up and running
- Enable core Kubernetes addons such as dns and dashboard
- Control your cluster from the kubectl CLI client
- Deploy your first container workload
You will only need …
- A machine with Linux
Integrated commands
There are many commands that ship with MicroK8s. We’ve only seen the essential ones in this tutorial. Explore the others at your own convenience:
- microk8s.status: Provides an overview of the MicroK8s state (running / not running) as well as the set of enabled addons
- microk8s.enable: Enables an addon
- microk8s.disable: Disables an addon
- microk8s.kubectl: Interact with kubernetes
- microk8s.config: Shows the kubernetes config file
- microk8s.istioctl: Interact with the istio services; needs the istio addon to be enabled
- microk8s.inspect: Performs a quick inspection of the MicroK8s intallation
- microk8s.reset: Resets the infrastructure to a clean state
- microk8s.stop: Stops all kubernetes services
- microk8s.start: Starts MicroK8s after it is being stopped
Lightweight Kubernetes done right
The smallest, fastest, fully-conformant Kubernetes that tracks upstream releases and makes clustering trivial. MicroK8s is great for offline development, prototyping, and testing. Use it on a VM as a small, cheap, reliable k8s for CI/CD. The best kubernetes for appliances. Develop IoT apps for k8s and deploy them to MicroK8s on your Linux boxes.
Reliable, fast, small, upstream.
- Fast install : Get a full Kubernetes system running in under 60 seconds.
- Secure : Runs safely on your laptop with state of the art isolation.
- Upstream : CNCF binaries delivered to your laptop, with updates and upgrades.
- Complete : Includes a docker registry so you can make containers, push them, and deploy them all on your laptop.
- Featureful : Cool things you probably want to try on a small, standard K8s are all built-in. Just enable them and go.
- Updates : Get the daily build if you want it, or betas and milestones, or just stable point releases.
- Upgrades : When a new major version comes out, upgrade with a single command (or automatically).
- GPGPU Passthrough : Give MicroK8s a GPGPU and your docker containers can get all nice and CUDA.
- Small : Use MicroK8s in your CI/CD pipelines and get on with your day without headaches.
