Update config templates

Updated config templates to benefit from initial_setup running after jail has fully started.

Added conditional nvidia-container-toolkit install during initial_setup.

Config templates now default to bridge networking.

templates/docker/README.md

@@ -2,4 +2,4 @@
 
 ## Setup
 
-Check out the [config](./config) template file. You may provide it when asked during `jlmkr create` or, if you have the template file stored on your NAS, you may provide it directly by running `jlmkr create --start --config /mnt/tank/path/to/docker/config mydockerjail`.
+Check out the [config](./config) template file. You may provide it when asked during `jlmkr create` or, if you have the template file stored on your NAS, you may provide it directly by running `jlmkr create --start --config /mnt/tank/path/to/docker/config mydockerjail`. If you want the `nvidia-container-toolkit` to be installed, ensure you set `gpu_passthrough_nvidia=1` when creating the jail.

templates/docker/config

@@ -6,10 +6,10 @@ seccomp=1
 
 # Use macvlan networking to provide an isolated network namespace,
 # so docker can manage firewall rules
-# Alternatively use --network-bridge=br1 instead of --network-macvlan
+# Alternatively use --network-macvlan=eno1 instead of --network-bridge
 # 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
-systemd_nspawn_user_args=--network-macvlan=eno1
+systemd_nspawn_user_args=--network-bridge=br1
     --resolv-conf=bind-host
     --system-call-filter='add_key keyctl bpf'
 
@@ -29,8 +29,8 @@ release=bookworm
 
 # Install docker inside the jail:
 # https://docs.docker.com/engine/install/debian/#install-using-the-repository
-# NOTE: this script will run in the host networking namespace and ignores
-# all systemd_nspawn_user_args such as bind mounts
+# Will also install the NVIDIA Container Toolkit if gpu_passthrough_nvidia=1 during initial setup
+# https://docs.nvidia.com/datacenter/cloud-native/container-toolkit/latest/install-guide.html
 initial_setup=#!/usr/bin/bash
     set -euo pipefail
 
@@ -43,9 +43,27 @@ initial_setup=#!/usr/bin/bash
     "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/debian \
     $(. /etc/os-release && echo "$VERSION_CODENAME") stable" | \
     tee /etc/apt/sources.list.d/docker.list > /dev/null
+    
     apt-get update
     apt-get install -y docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin
     
+    # The /usr/bin/nvidia-smi will be present when gpu_passthrough_nvidia=1
+    if [ -f /usr/bin/nvidia-smi ]; then
+        curl -fsSL https://nvidia.github.io/libnvidia-container/gpgkey -o /etc/apt/keyrings/nvidia.asc
+        chmod a+r /etc/apt/keyrings/nvidia.asc
+        curl -s -L https://nvidia.github.io/libnvidia-container/stable/deb/nvidia-container-toolkit.list | \
+        sed 's#deb https://#deb [signed-by=/etc/apt/keyrings/nvidia.asc] https://#g' | \
+        tee /etc/apt/sources.list.d/nvidia-container-toolkit.list
+
+        apt-get update
+        apt-get install -y nvidia-container-toolkit
+
+        nvidia-ctk runtime configure --runtime=docker
+        systemctl restart docker
+    fi
+
+    docker info
+
 # You generally will not need to change the options below
 systemd_run_default_args=--property=KillMode=mixed
     --property=Type=notify

templates/incus/README.md

@@ -8,11 +8,10 @@
 
 Check out the [config](./config) template file. You may provide it when asked during `jlmkr create` or, if you have the template file stored on your NAS, you may provide it directly by running `jlmkr create --start --config /mnt/tank/path/to/incus/config myincusjail`.
 
-Unfortunately incus doesn't want to install from the `initial_setup` script inside the config file. So we manually finish the setup by running the following after creating and starting the jail:
+We manually finish the setup by running the following after creating and starting the jail:
 
 ```bash
-jlmkr exec myincusjail bash -c 'apt-get -y install incus incus-ui-canonical &&
-    incus admin init'
+jlmkr exec myincusjail bash -c 'incus admin init'
 ```    
 
 Follow [First steps with Incus](https://linuxcontainers.org/incus/docs/main/tutorial/first_steps/).

templates/incus/config

@@ -3,15 +3,16 @@ startup=0
 gpu_passthrough_intel=0
 gpu_passthrough_nvidia=0
 # Turning off seccomp filtering improves performance at the expense of security
-seccomp=1
+# TODO: don't disable seccomp but specify which syscalls should be allowed
+seccomp=0
 
 # Use macvlan networking to provide an isolated network namespace,
 # so incus can manage firewall rules
-# Alternatively use --network-bridge=br1 instead of --network-macvlan
+# Alternatively use --network-macvlan=eno1 instead of --network-bridge
 # 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
-systemd_nspawn_user_args=--network-macvlan=eno1
+systemd_nspawn_user_args=--network-bridge=br1
     --resolv-conf=bind-host
     --capability=all
     --bind=/dev/fuse
@@ -36,8 +37,6 @@ release=bookworm
 
 # Install incus according to:
 # https://github.com/zabbly/incus#installation
-# 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
     apt-get update && apt-get -y install curl
@@ -54,6 +53,7 @@ initial_setup=#!/usr/bin/bash
 
     EOF'
     apt-get update
+    apt-get -y install incus incus-ui-canonical
 
 # You generally will not need to change the options below
 systemd_run_default_args=--property=KillMode=mixed

templates/lxd/README.md

@@ -8,20 +8,7 @@
 
 Check out the [config](./config) template file. You may provide it when asked during `jlmkr create` or, if you have the template file stored on your NAS, you may provide it directly by running `jlmkr create --start --config /mnt/tank/path/to/lxd/config mylxdjail`.
 
-Unfortunately snapd doesn't want to install from the `initial_setup` script inside the config file. So we manually finish the setup by running the following after creating and starting the jail:
-
-```bash
-# Repeat listing the jail until you see it has an IPv4 address
-jlmkr list
-
-# Install packages
-jlmkr exec mylxdjail bash -c 'apt-get update &&
-    apt-get install -y --no-install-recommends snapd &&
-    snap install lxd'
-
-```
-
-Choose the `dir` storage backend during `lxd init` and answer `yes` to "Would you like the LXD server to be available over the network?"
+We manually finish the setup by running the command below after creating and starting the jail. Choose the `dir` storage backend during `lxd init` and answer `yes` to "Would you like the LXD server to be available over the network?"
 
 ```bash
 jlmkr exec mylxdjail bash -c 'lxd init &&

templates/lxd/config

@@ -3,11 +3,12 @@ startup=0
 gpu_passthrough_intel=0
 gpu_passthrough_nvidia=0
 # Turning off seccomp filtering improves performance at the expense of security
-seccomp=1
+# TODO: don't disable seccomp but specify which syscalls should be allowed
+seccomp=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
+# Alternatively use --network-macvlan=eno1 instead of --network-bridge
 # 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
@@ -34,12 +35,13 @@ pre_start_hook=#!/usr/bin/bash
 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
+    apt-get update
+    apt-get install -y --no-install-recommends snapd
+    snap install lxd
 
 # You generally will not need to change the options below
 systemd_run_default_args=--property=KillMode=mixed

templates/podman/config

@@ -6,10 +6,10 @@ seccomp=1
 
 # Use macvlan networking to provide an isolated network namespace,
 # so podman can manage firewall rules
-# Alternatively use --network-bridge=br1 instead of --network-macvlan
+# Alternatively use --network-macvlan=eno1 instead of --network-bridge
 # 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
-systemd_nspawn_user_args=--network-macvlan=eno1
+systemd_nspawn_user_args=--network-bridge=br1
     --resolv-conf=bind-host
     --system-call-filter='add_key keyctl bpf'
 
@@ -28,8 +28,6 @@ distro=fedora
 release=39
 
 # Install podman inside the jail
-# 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
     dnf -y install podman