cllovatto

Backup
- Create a volume and attach to control plane instance (for example, attached to /dev/vdb)
- Login to instance and:
fdisk /dev/vdb
n
p
<enter> 3x
w
mkfs.ext4 /dev/vdb1
mkdir /mnt/backup

cllovatto

Sometimes when you delete a cluster from Rancher, it still appears in the Home dashboard and also on the left menu. 
This is not only cosmetic, but if you try to import a new cluster under the same name, it does not work.
To definitely remove it, login to Rancher cluster and type the following:

kubectl get clusters.management.cattle.io  # find the cluster you want to delete 
kubectl describe clusters.management.cattle.io <cluster-id from previous command> # Find the Display name for the cluster and confirm it is the one you want
export CLUSTERID="c-xxxxxxxxx"
kubectl patch clusters.management.cattle.io $CLUSTERID -p '{"metadata":{"finalizers":[]}}' --type=merge
kubectl delete clusters.management.cattle.io $CLUSTERID