k3s-airgap-quickstart

Requirements

yq

On Rocky 8:

sudo yum install -y python3
python3 -m pip install --user yq

Stack

• K3s
  • Flannel (disabled due to nf_tables issues)
• Calico
  • Includes calicoctl
  • Not using operator - makes little sense in airgapped installs
• Helm
• Crane

Tasks

Freeze versions to use

./quickstart.sh freeze

Download files for frozen versions

./quickstart.sh download

Install from downloaded files

./quickstart.sh install

Smoketest the installed K3s node

./smoketest.sh

Notes

• If installing manually, K3s pods will be in 'Pending' state until Calico is installed
  • This is because Flannel is disabled, so the node has no CNI - kubectl describe node should show it as not ready because there is no CNI
• K3s Uninstall only cleans up resources IT installs - see k3s-io/k3s#1469