Replace Virtual Machines with LXC/LXD Containers

So many folks today use Virtual Machines for Self-Hosting or they use Docker containers. Often overlooked, LXC/LXD containers provide a highly efficient way to virtualize an operating system without virtualizing the hardware as is the case with a Virtual Machine.

In this presentation, we look into how to create and use LXD containers.

The focus this tutorial is learning how to use the linux command line to create containers and also how to bridge those containers to a LAN network.

In the video, we review a simple .yaml file for implementing a network bridge on your host computer in order for LXD containers to be exposed to your LAN.

Change the "ens3" device, the "addresses" field, and the "gateway4" field for your host.

cd /etc/netplan

sudo nano xxxxx.yaml

This is the network config for a bridged network
network:
version: 2
renderer: networkd

ethernets:
ens3:
dhcp4: false
dhcp6: false

bridges:
br0:
interfaces: [ens3]
addresses: [172.16.15.15/16]
gateway4: 172.16.0.1
mtu: 1500
nameservers:
addresses: [1.1.1.1]
parameters:
stp: true
forward-delay: 4
dhcp4: no
dhcp6: no

To apply the above configuration after saving the file:

sudo netplan generate
sudo netplan apply