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
One of the most popular is Valero, which gives you tools to back up and restore your Kubernetes cluster resources and persistent volumes. You can run Velero with a cloud provider or on-premises. It is well documented. You can check installation overview to see details.
You can also check tutorial how to srart with Valero. If you have more question feel free to ask.