i have to backup my kubernetes cluster. i choose Etcd backup with rancher rke but after restoring the backup i have too many differente errors on pods like Calico, Nginx-ingress-controller, kube-dns and ... .
is Etcd backup reliable? what is the best backup tools for kubernetes?
i tried step by step restore from: https://rancher.com/docs/rancher/v2.x/en/backups/restorations/ha-restoration/#4-restore-database