Add and Remove Worker Node¶

1. Add worker node¶

• 1.1 Login rancher, and select maintain cluster

Click ☰ -> Cluster Management -> wzs-sat-poc-01

• 1.2 Select Registration, and unchecked etcd and Control Plane, Checked Worker, and select Insecure: Select this to skip TLS verification if your server has a self-signed certificate to skip TLS verification, then copied previous step registration command.

• 1.3 Paste registration command, and execution on new add worker node

curl --insecure -fL https://rancher-wzsqas.wistron.com/system-agent-install.sh | sudo  sh -s - --server https://rancher-wzsqas.wistron.com --label 'cattle.io/os=linux' --token kb6cfqqv2mz5pchf7p4kxcbt9tsdm2jxgsjjtnzxrsgk5l4h5kbjpp --ca-checksum 738dc7ec672f776fd642ece280f4357f822ac47494974b6702651e8c357fc700 --worker

2. Remove worker node¶

• 2.1 Login master node

Drain all pod from worker node, and delete worker node

kubectl drain zstmesqw1 --ignore-daemonsets --delete-emptydir-data --force
kubectl get node
kubectl delete node zstmesqw1
kubectl get node

• 2.2 Login rancher, and select maintain cluster

Click ☰ -> Cluster Management -> wzs-sat-poc-01

• 2.3 Select need remove worker node, then click Delete

• 2.4 Confirm delete

• 2.5 Waiting worker removed from cluster, then use root login deleted worker node, and execution un-install script

/usr/local/bin/rke2-killall.sh
/usr/local/bin/rke2-uninstall.sh
rm -rf /etc/rancher
rm -rf /var/lib/rancher/*