Getting Started with K3s

K3s is a highly available, certified Kubernetes distribution designed for production workloads in unattended, resource-constrained, remote locations or inside IoT appliances.

Installation

Run the installation script:

bash

curl -sfL https://get.k3s.io | sh -

Check the service status:

bash

systemctl status k3s

Accessing the Cluster

K3s installs `kubectl` automatically.

bash

kubectl get nodes
kubectl get pods --all-namespaces

Deploying a Test App

Create `deployment.yaml`:

yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx-deployment
spec:
  replicas: 2
  selector:
    matchLabels:
      app: nginx
  template:
    metadata:
      labels:
        app: nginx
    spec:
      containers:
      - name: nginx
        image: nginx:1.14.2
        ports:
        - containerPort: 80

Apply it:

bash