Install the package lxc lxc-stuffs, and configure the cgroup mount entry in /etc/fstab
cgroup /sys/fs/cgroup cgroup defaults 0 0
If is the first time mount it (# mount /sys/fs/cgroup). The final check can be done with lxc-checkconfig.
It's possible to create a linux container using lxc-create: in order to chose the OS to use for it you can use the --template option: it takes as argument one of the scripts in /usr/share/lxc/templates/.
When created the configuration files are in /var/lib/lxc/<container name>/
It exists also command like below that presents you with a menu to choose from.
$ lxc-create -n $NAME -t download
...
Distribution:
debian
Release:
stretch
Architecture:
amd64
Downloading the image index
Downloading the rootfs
Downloading the metadata
The image cache is now ready
Unpacking the rootfs
---
You just created a Debian stretch amd64 (20190525_05:24) container.
To enable SSH, run: apt install openssh-server
No default root or user password are set by LXC.
lxc-start -n $NAME
this starts but does not present you with a console, you instead need to
use lxc-console:
$ lxc-console -n test
Connected to tty 1
Type <Ctrl+a q> to exit the console, <Ctrl+a Ctrl+a> to enter Ctrl+a itself
Debian GNU/Linux 9 test pts/0
test login:
As default the networking is "empty", in order to be able to connect you have to use the veth device
# Network configuration
lxc.network.type=veth
lxc.network.link=lxcbr0
lxc.network.ipv4=10.0.0.100
lxc.network.ipv4.gateway=10.0.0.1
lxc.network.flags=up
lxc.network.name=eth0
lxc.network.mtu=1500
using a bridge named lxcbr0 that can be created and activated with the following commands
# brctl addbr lxcbr0
configured with the gateway address
# ifconfig lxcbr0 10.0.0.1/24 up
Remeber to allow forwarding from the host computer
# sysctl net.ipv4.ip_forward=1
# iptables -t nat -A POSTROUTING -s 10.0.0.100 -o eth0 -j MASQUERADE
The following I don't understand if are useful to the namespace programmed case # ifconfig lxcbr0 up # brctl setfd lxcbr0 0 # brctl addif lxcbr0 eth0
Exists a plugin that allows to use lxc with vagrant
https://github.com/fgrehm/vagrant-lxc
This plugin can be installed with
$ vagrant plugin install vagrant-lxc
$ vagrant init fgrehm/wheezy64-lxc
$ vagrant up --provider=lxc
- https://wiki.debian.org/LXC
- https://www.stgraber.org/2014/02/09/lxc-1-0-gui-in-containers/
- http://l3net.wordpress.com/2013/08/25/debian-virtualization-lxc-network-isolation/
- https://github.com/turnkeylinux-apps/lxc
- http://www.flockport.com/lxc-networking-guide/
- http://www.flockport.com/flockport-labs-extending-layer-2-across-container-hosts/