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@ -17,6 +17,10 @@ TrueNAS SCALE can create persistent Linux 'jails' with systemd-nspawn. This scri
- Optional: GPU passthrough (including [nvidia GPU](README.md#nvidia-gpu) with the drivers bind mounted from the host)
- Starting the jail with your config applied
## Security
Despite what the word 'jail' implies, jailmaker's intended use case is to create one or more additional filesystems to run alongside SCALE with minimal isolation. By default the root user in the jail with uid 0 is mapped to the host's uid 0. This has [obvious security implications](https://linuxcontainers.org/lxc/security/#privileged-containers). If this is not acceptable to you, you may lock down the jails by [limiting capabilities](https://manpages.debian.org/bookworm/systemd-container/systemd-nspawn.1.en.html#Security_Options) and/or using [user namespacing](https://manpages.debian.org/bookworm/systemd-container/systemd-nspawn.1.en.html#User_Namespacing_Options) or use a VM instead.
## Installation
Create a new dataset called `jailmaker` with the default settings (from TrueNAS web interface). Then login as the root user and download `jlmkr.py`.
@ -123,7 +127,7 @@ jlmkr log myjail
### Additional Commands
Expert users may use the following additional commands to manage jails directly: `machinectl`, `systemd-nspawn`, `systemd-run`, `systemctl` and `journalctl`. The `jlmkr` script uses these commands under the hood and implements a subset of their capabilities. If you use them directly you will bypass any safety checks or configuration done by `jlmkr` and not everything will work in the context of TrueNAS SCALE.
Expert users may use the following additional commands to manage jails directly: `machinectl`, `systemd-nspawn`, `systemd-run`, `systemctl` and `journalctl`. The `jlmkr` script uses these commands under the hood and implements a subset of their functions. If you use them directly you will bypass any safety checks or configuration done by `jlmkr` and not everything will work in the context of TrueNAS SCALE.
## Networking