Introduction to Secrets disaster recovery and backups

The Kubernetes ecosystem offers various possibilities for managing sensitive data and credential info, commonly known as Secrets. In this dynamic and complex environment, the concept of disaster recovery and backups has become extremely critical. When speaking of backups, it could mean multiple things, depending on the architecture of the Secrets management.

One approach to Secrets management in Kubernetes is using Kubernetes’ built-in key-value store. All the cluster data, including Secrets, are stored in etcd. If a disaster occurs, a backup of etcd can help restore the entire cluster state, including the Secrets. However, the restoration process in this case could be complex and might have limitations, especially when considering the sensitive nature of Secrets.

Another approach is to use a centralized Secrets management system, such as Hashicorp Vault, which can interface with Kubernetes. In such systems, Secrets...