Setup K3s on Ubuntu¶

Learn how to set up K3s on Ubuntu for lightweight Kubernetes deployment.

1. Install k3s as a service

   Bash

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

2. Fix k3s permission denied issues

   Bash

   mkdir ~/.kube 2> /dev/null
   export KUBECONFIG=~/.kube/config
   sudo k3s kubectl config view --raw > "$KUBECONFIG"
   chmod 600 "$KUBECONFIG"
   

   • More details in fixing k3s permission denied issues.

3. export KUBECONFIG=~/.kube/config to either ~/.profile or ~/.bashrc to make it persist on reboot(Optional).

   Bash

   nano ~/.bashrc
   source ~/.bashrc
   

   Navigate to the last line

   ~/.bashrc

   # last line
   export KUBECONFIG=~/.kube/config
   

4. Test connection

   Bash

   kubectl get all