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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.

Michael Pacheco
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1 Answers1

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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.