NFS type storage for containers on DO

I really want to try moving things to DO and move away from AWS to save some $$$. I can’t see how its possible to mount storage into containers. App platform doesn’t support priv mode (this makes sense), but can’t use s3fs + spaces. The k8s volumes only support RWO not RWX. How do customers achieve something similar to EFS where you can mount the same shared storage into multiple containers? Short of me trying to setup rook or longhorn inside k8s.

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Bobby Iliev
Site Moderator
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June 13, 2024


There has been a similar question here:

The answer from the support team seems to be what you are after:

I understand your concern here about the ReadWriteMany. We won’t be able to support ReadWriteMany volumes because of some inherent limitations of our Block storage product. Our Engineering team is working towards the solution/workaround for this ReadWriteMany issue. However, I won’t be able to provide a specific ETA about the same.

Our do-block-storage product does have a few technical limitations that can cause trouble for some usecases. You can find more information on these limitations in our documentation:

You can work around these limitations for example by using a different protocol to share and mount the storage. An example is exporting the storage throughout the cluster using other means such as the NFS protocol.

There is a helm chart ‘nfs-server-provisioner’ that will create a containerized NFS server. You can then back the nfs server with do-block-storage and use NFS exports for the use cases of shared storage or to get around the any mounting limitations. You can find more information and instructions on the helm chart and the helm project in the links below. nfs-server-provisioner:


Currently, setting up NFS is the workaround for RWX using PVC. However, the deployment of nfs-server described in this tutorial is not highly available, and therefore is not recommended for use in production. If nodes fail the storage would be down until the nfs-server pod is redeployed by kubernetes. There are more production ready set-ups out there. But this still stands as an easy and quick way to get up and running during development or testing out application proof of concepts for RWX volumes.

The helm chart above is good for testing proof of concept or low stakes workflows. The reason for this it is not highly available and thus recommended for production. If your nfs-server pod goes down for any reason. All of your storage exports are now stale which can lead to issues, and it typically doesn’t recover automatically but needs a manual pod restart to get back up and running.

There are some other setups out there like the project is highly available and allows for RWX volumes. But its configuration and setup is a bit more in-depth.

Let me know if this works for you!

- Bobby

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