jailmaker/templates/lxd/config

# WARNING: EXPERIMENTAL CONFIG TEMPLATE!
startup=0
gpu_passthrough_intel=1
gpu_passthrough_nvidia=0

# Use macvlan networking to provide an isolated network namespace,
# so lxd can manage firewall rules
# Alternatively use --network-bridge=br1 instead of --network-macvlan
# Ensure to change eno1/br1 to the interface name you want to use
# You may want to add additional options here, e.g. bind mounts
# TODO: don't use --capability=all but specify only the required capabilities
# TODO: or add and use privileged flag?
systemd_nspawn_user_args=--network-bridge=br1
    --resolv-conf=bind-host
    --capability=all
    --bind=/dev/fuse
    --bind=/dev/kvm
    --bind=/dev/vsock
    --bind=/dev/vhost-vsock

# Script to run on the HOST before starting the jail
# Load kernel module and config kernel settings required for lxd
pre_start_hook=#!/usr/bin/bash
    set -euo pipefail
    echo 'PRE_START_HOOK'
    echo 1 > /proc/sys/net/ipv4/ip_forward
    modprobe br_netfilter
    echo 1 > /proc/sys/net/bridge/bridge-nf-call-iptables
    echo 1 > /proc/sys/net/bridge/bridge-nf-call-ip6tables
    modprobe vhost_vsock

# Only used while creating the jail
distro=ubuntu
release=jammy

# NOTE: this script will run in the host networking namespace and ignores
# all systemd_nspawn_user_args such as bind mounts
initial_setup=#!/usr/bin/bash
    set -euo pipefail
    # https://discuss.linuxcontainers.org/t/snap-inside-privileged-lxd-container/13691/8
    ln -sf /bin/true /usr/local/bin/udevadm

# You generally will not need to change the options below
systemd_run_default_args=--property=KillMode=mixed
    --property=Type=notify
    --property=RestartForceExitStatus=133
    --property=SuccessExitStatus=133
    --property=Delegate=yes
    --property=TasksMax=infinity
    --collect
    --setenv=SYSTEMD_NSPAWN_LOCK=0
# TODO: add below if required:
# --property=DevicePolicy=auto

systemd_nspawn_default_args=--keep-unit
    --quiet
    --boot
    --bind-ro=/sys/module
    --inaccessible=/sys/module/apparmor