K3s offline deployment

1. Download offline image package
   Offline image package download address

   Because my environment is CentOS 7.7, so download the two in the red box
   
   Download Deployment Script
   Deployment Script Download Address (https://get.k3s.io)

2. After uploading the prepared file to the server, put the k3s binary file and image package into the specified directory (executed on each node)

   $ mkdir -p /var/lib/rancher/k3s/agent/images/
   $ cp ./k3s-airgap-images-amd64.tar /var/lib/rancher/k3s/agent/images/
   
   $ chmod +x k3s
   $ cp ./k3s /usr/local/bin/
   

3. Install k3s on the control node

   $ chmod +x install.sh
   $ INSTALL_K3S_SKIP_DOWNLOAD=true ./install.sh
   

   

4. Add a node to the cluster
   to get node-token

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

   Assign the token in the previous step to the node-token
   master-ip in the command below and replace it with the IP of the control node

   $ INSTALL_K3S_SKIP_DOWNLOAD=true K3S_URL=https://{
         
         master-ip}:6443    K3S_TOKEN=${node-token} ./install.sh
   

   

5. View the final deployment result