lk/distros/void/lxc.md
2022-01-18 13:24:25 +01:00

1.8 KiB

title tags
lxc
Documentation
distros

Intro

Taken from this Void linux requires additional steps to set up, as Systemd is no present to automatically take care of everything.

sudo xbps-install cgmanager dbus bridge-utils lxc

Next, startup services:

sudo ln -s /etc/sv/dbus/ /var/service/

sudo ln -s /etc/sv/cgmanager/ /var/service/

sudo sv start dbus

sudo sv start cgmanager

sudo sv start dbus

sudo sv start cgmanager

Maps your user account to the lxc g/u ids:

sudo usermod --add-subuids 100000-165536 $USER

sudo usermod --add-subgids 100000-165536 $USER

Then add a bridge interface to connect the container.

sudo brctl addbr lxbr0

Then add an interface. I have no idea how this is done or what it means, so I tried my wifi 'wlp3s0', and that was refused. I tried the guide's one, which obviously didn't work as I didn't have the same interface as in the guide. Finally, I tried ip addr show and noticed other devices 'lo' and 'wwp0s20u4i6'. This gave me:

sudo brctl addif lxbr0 wwp0s20u4i6

... which worked.

If you don't want to redo this each boot, you can make a runit service for it apparently - more research is required for this. For now, I'm just copy-pasting the guide (almost) and sticking this in ~/.config/lxc/default.conf:

lxc.network.type = veth

lxc.network.link = wwp0s20u4i6

lxc.network.flags = up

lxc.network.hwaddr = 00:16:3e:BB:CC:DD

lxc.id_map = u 0 100000 65536

lxc.id_map = g 0 100000 65536

You can now configure a different bridge each boot to connect with the lxc containers, or ....

Next, do this at every boot (or script it):

sudo cgm create all $USER

sudo cgm chown all $USER $(id -u) $(id -g)

cgm movepid all $USER