LXC Containers (ARCH)#

Create container#

lxc-create -n <containername> -t download

Default container config#

Arch Container#

lxc.network.type = veth
lxc.network.name = eth0
lxc.network.link = br0
lxc.network.flags = up
lxc.network.veth.pair = veth0-pandora
lxc.network.ipv4=10.200.200.222/8
lxc.network.ipv4.gateway=10.200.200.1

# By default, lxc symlinks /dev/kmsg to /dev/console, this leads to journald 
# running at 100% CPU usage all the time. To prevent the symlink, use: 
lxc.kmsg = 0

lxc.rootfs = /data/lxc/pandora/rootfs
lxc.rootfs.backend = dir
lxc.utsname = pandora
lxc.arch = x86_64
lxc.include = /usr/share/lxc/config/archlinux.common.conf

# disables AppArmor confinement
lxc.aa_profile = unconfined
# give all capabilities to the processes in LXC container
lxc.cap.drop =

#lxc.hook.autodev = /usr/share/lxc/hooks/auto-tun

# Allow tun/tap
lxc.cgroup.devices.allow = c 10:200 rwm

lxc.start.auto = 1

Alpine Container#

lxc.network.type = veth
lxc.network.name = eth0
lxc.network.link = br0
lxc.network.flags = up
lxc.network.veth.pair = veth0-alpinetpl
lxc.network.ipv4=10.200.200.223/8
lxc.network.ipv4.gateway=10.200.200.1

lxc.rootfs = /var/lib/lxc/alpinetemplate/rootfs
lxc.rootfs.backend = dir
lxc.arch = x86_64

# Set hostname.
lxc.utsname = alpinetemplate

# If something doesn't work, try to comment this out.
# Dropping sys_admin disables container root from doing a lot of things
# that could be bad like re-mounting lxc fstab entries rw for example,
# but also disables some useful things like being able to nfs mount, and
# things that are already namespaced with ns_capable() kernel checks, like
# hostname(1).
lxc.cap.drop = sys_admin

# Include common configuration.
lxc.include = /usr/share/lxc/config/alpine.common.conf

lxc.start.auto = 1

Allow docker inside LXC#

Allow tun/tap inside lxc config:

lxc.cgroup.devices.allow = c 10:200 rwm

Create device inside LXC container:

if ! [ -d /dev/net ];then
 mkdir /dev/net
fi
if ! [ -c /dev/net/tun ]; then
 mknod /dev/net/tun c 10 200
 chmod 666 /dev/net/tun
fi