Thursday, 2020-08-27

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kata-irc-bot1<ralf> I am trying to run a Docker container that is rather I/O bound with the kata-containers runtime. I've managed to pass a raw LVM device into the container that I can manually mount as a filesystem *within the container* alright when I grant the container with additional ``SYS_ADMIN`` capabilities. However, I prefer this to happen automatically at container startup -- without granting the ``SYS_ADMIN`` permission. I have tried Docker's20:28
kata-irc-bot1``--mount`` option but end up with a 9p mount; which is a no-go performance wise. Is there any way to have the kata runtime mount the file system inside of the container namespace without going through 9p or virtio-fs?20:28
kata-irc-bot1<ralf> I would like to avoid going down the virtio-fs route as we are also considering switching to Firecracker and Firecracker doesn't support virtio-fs yet (https://github.com/firecracker-microvm/firecracker/issues/1180)20:32
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kata-irc-bot1<eric.ernst> Yeah, that makes sense to me. Just to clarify, you running from Docker CLI, or via a CRI runtime?23:09
kata-irc-bot1<eric.ernst> Also, are you passing it as a volume, or as an actual device?23:10

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