Does Kubernetes support persistent volumes shared between multiple nodes in a cluster?

Question

I need to build an application that has many bare-metal nodes joined in a Kubernetes cluster and I need a shared persistent file system between those nodes. The nodes should be able to read-write in this file system simultaneously.

Bonus: is there a way to keep the file system alive even if the cluster crashes?

I read this article but cant find answers to this question.

This problem is very important to me because it is a requirement to my undergraduate paper.

Bologna

Answer 1

Yes it does. What you're looking for is to set your AccessMode to ReadWriteMany. Note that not all Volume Plugins provide ReadWriteMany.

Multiple pods might be reading/writing to the Volume plugin at the same time. If a node/pod were to restart, you would still have access to the volume.

To get a full list of what which Volume Plugin supports that, refer to the official documentation.

Atwitter