However, they're in a development issue tracker, and the end-user k8s documentation clearly states that Ephemeral Storage requests/limits works, how it works, and what its limitations are. Ephemeral storage is unstructured and shared between all pods running on the node, the container runtime, and. This can be done both at the pod level and at the container level for fine-grained storage management. I also had to spend a few minutes on each one of them to understand what the actual state of the issues is. In a Kubernetes cluster, you manage ephemeral storage by setting resource quotas and request limits across all non-terminal pods. I agree these are difficult to understand if you're not familiar with the k8s development/design process. the standard kubelet implementation which just kills/evicts workloads that run past their limit. The third issue is about integrating Docker storage quotas with Kubernetes ephemeral quotas - ie., translating ephemeral storage limits into disk quotas (which would result in -ENOSPC to workloads), vs. Filesystem Size Used Avail Use Mounted on udev 7.9G 0 7.9G 0 /dev tmpfs 1.6G 151M 1. kubectl describe node node-name Where and how does Kubernetes compute the amount of ephemeral-storage that is allocatable for pods. Now the the ephemeral storage of the worker is increased. ![]() There's also some discussion about related functionality that might be added as part of this KEP/design. Specifically, I’m interested in the ephemeral-storage property. ![]() This will be closed when all the related features are stable. The second is a tracking issue for a KEP that has been implemented but is still in alpha/beta. the Azure Disk CSI driver might have a per-node volume limit. the current implementation, see the third point below. By default, Azure automatically replicates the operating system disk for a virtual machine to Azure storage to avoid data loss when the VM is relocated to another host. Check on the: ephemeral-storage Limits and Requests, for example. EDIT: No, sorry, it's about using underlying filesystem quotas for limiting ephemeral storage, vs. If the error is: Pod ephemeral local storage usage exceeds the total limit of containers xGi. Eg., team A cannot use a total of more than 100G ephemeral storage in total in the cluster. ![]() The first issue you've linked concerns quota support for ephemeral storage requests/limits - which is not about the limits themselves, but the ability to set a limit quotas per tenant/namespace.
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