Sandboxes (Linux Jails) - Jailmaker Experimental Script

TrueNAS General
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Just a placeholder for continuing the original thread on the old forum, discussing the very useful jailmaker script by Jip-Hop

Old thread here

Download the script from Jip-Hop’s github page

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Suggest modifying topic to mention “Sandboxes” and “Jailmaker”

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You mean like so?

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Perfect.

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Thanks for this placeholder but I decided to create a new thread myself. You can find it here: Linux Jails (sandboxes / containers) with Jailmaker Let’s continue the conversation over there and perhaps lock this thread? :slight_smile:

I put it under Apps and Virtualization because the Sandboxes documentation on the TrueNAS website is also under Apps:

24.04 (Dragonfish)/SCALE Tutorials/Apps/Sandboxes (Jail-like Containers)

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I’m not a mod…

image

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I seem to be struggling with Tailscale to get running. I tried to add these to the first block of the jailmaker config but no luck. greeted with the message:

Error response from daemon: invalid CapAdd: capability not supported by your kernel or not available in the current environment: "CAP_SYS_MODULE"

this is in the jail config.

systemd_nspawn_user_args=--network-macvlan=enp4s0
        --resolv-conf=bind-host
        --system-call-filter='add_key keyctl bpf'
        --bind='/mnt/ssd-storage/docker/data:/mnt/data'
        --bind='/mnt/ssd-storage/docker/stacks:/opt/stacks'
        --capability=CAP_NET_ADMIN
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Just an FYI for interested parties. I merged ZFS changes into nightlies for electriceel (24.10) and master that should allow idmap namespaces when NFSv4 acltype is in use. It was too late to make cut for 24.10 BETA1 (which will be released soon), but testing / feedback will be appreciated (assuming you are familiar with user namespaces).

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Quick question: after updating to 24.10-RC i had to restart my jail and got an error message

modprobe: FATAL: Module nvidia-current-uvm not found in directory /lib/modules/6.6.44-production+truenas

Failed to load nvidia-current-uvm kernel module.
Skipped mounting /dev/nvidia-modeset, it doesn't exist on the host...

The jail started just fine and transcoding using my nvidia gpu in jellyfin also work, so i’m wondering if i have to do anything at all :confused:

Edit: Spoken too early, transcoding doesn’t work…