Backup rancher's k8s etcd to minio

Ranchers cluster can automatically send their etc snapshot to an external S3 storage.
We should configure each cluster to do so to allow a recovery in case of a disaster

The minio storage is accessible on saam, so even if the disaster occurs for the admin cluster, we should be able to retrieve the backup without using the S3 API

root@saam:/srv/storage/space/minio-data/backup-rancher/rancher# ls
recurring-to-minio-df22cac6-f1a2-4bc9-9a89-068b733a848a-2022-11-24T14-12-17Z.tar.gz

• A dedicated bucket and credentials per cluster should be created in minio
• Cluster to backup:
  • admin
  • archive-staging
  • archive-production
  • test-staging
• Add monitoring and alerting according the backup frequency