When using Kops on AWS to deploy your Kubernetes cluster you'll find yourself with multiple elastic block storage volumes which are the PersistentVolumeClaim implementation on AWS. Snapshots are then a great way to provide backups, and especially so if coupled with lifecycle manager which can define your backup schedule and retention.

Usually when defining a life-cycle policy you create a tag filter to select specifics volumes and then a schedule to snapshot them and how many you want to keep.

So it would be great to add tags to volumes provisioned by Kubernetes that way you could create a life cycle policy to backup them automatically when marked with a specific tag.

Unfortunately that's currently not possible on the standard provisioner:

• https://github.com/kubernetes/kubernetes/pull/49390
• https://github.com/kubernetes/kubernetes/issues/50898

But you can use the AWS EBS CSI driver instead of the k8s in-tree one (which looks like will be deprecated one day), then you can add tags this way:

• https://github.com/kubernetes-sigs/aws-ebs-csi-driver/blob/e175fe64989019e2d8f77f5a5399bad1dfd64e6b/charts/aws-ebs-csi-driver/values.yaml

In fact the AWS EBS CSI provisioner ability to add extra tags got merged to master branch sometime in 2019 (https://github.com/kubernetes-sigs/aws-ebs-csi-driver/issues/333).