Backup
get all services
kubectl get all --all-namespaces -o yaml > all-deploy.yaml
Tools
VELERO
ETCD cluster backup
--data-dir /var/lib/etcd
etcdctl snapshot save snapshot.db
service kube-apiserver stop
etcdctl snapshot restore snapshot.db --data-dir /var/lib/etcd-from-backup
systemctl daemon-reload
systemctl etcd restart