Overview

Kubernetes is an open-source container orchestration platform.

What does this mean?

It means that Kubernetes is just scalable Docker. It features:

self healing
horizontal scalability
service discovery
automatic load balancing
resource-based container deployments

flavors

Kubernetes comes in two main versions:

k8s (the full, feature rich edition)
k3s (the lightweight, simpler version)

installation (k3s)

curl -sfL https://get.k3s.io | sh - Install Kubernetes to the current environment as the control plane.

curl -sfL https://get.k3s.io | K3S_URL=https://<CONTROLLER_IP>:6443 K3S_TOKEN=<CLUSTER_TOKEN> sh - Install Kubernetes to the current environment as part of the cluster managed by the control plane.

The cluster token can be found by running the following command:

sudo cat /var/lib/rancher/k3s/server/node-token

sudo kubectl get nodes Now that all the nodes have been installed, check on their health.

sudo systemctl status k3s (Optional)