storageclass & pvc for daemonset

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Jerry Hwang

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Apr 20, 2018, 12:57:26 AM4/20/18
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Hello,

I deployed storageclass and pvc and then deployed daemonset (4 pods) to use it, however I noticed the pvc was only mounted by a pod, the other 3 pods were not able to use it.

Anyone has experienced it and found a way around to make sc/pvc available to all pods in daemonset?

Thanks,
J

Michelle Au

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Apr 20, 2018, 10:09:31 AM4/20/18
to Kubernetes user discussion and Q&A
Hi Jerry,

With a Daemonset, all instances share the same PVC, so you need to use some multi writer storage like NFS.

If you want each instance to get a different volume, then you can use Statefulset's volumeClaimTemplates.

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Jerry Hwang

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Apr 20, 2018, 1:24:48 PM4/20/18
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Thank you Michelle!

On Fri, Apr 20, 2018 at 7:09 AM, 'Michelle Au' via Kubernetes user discussion and Q&A <kubernet...@googlegroups.com> wrote:
Hi Jerry,

With a Daemonset, all instances share the same PVC, so you need to use some multi writer storage like NFS.

If you want each instance to get a different volume, then you can use Statefulset's volumeClaimTemplates.

On Thu, Apr 19, 2018, 21:57 Jerry Hwang <speci...@gmail.com> wrote:
Hello,

I deployed storageclass and pvc and then deployed daemonset (4 pods) to use it, however I noticed the pvc was only mounted by a pod, the other 3 pods were not able to use it.

Anyone has experienced it and found a way around to make sc/pvc available to all pods in daemonset?

Thanks,
J

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