Using LXD/LXC for containers

These commands work on Ubuntu 18.04 with LXD v3.1

Install

sudo apt install lxd

Configure

sudo lxc

Download initial images database

sudo lxc 

Display help for a given command

sudo lxc help [command]

List existing container and their current state

sudo lxc list

Create and start new container

sudo lxc launch images:debian/9 container-name

Connect to container console - To detach from the console, press: <ctrl>+a q

sudo lxc console container-name

Another way to connect to a container

sudo lxc exec container-name /bin/bash

Stop container

sudo lxc stop container-name

Start container

sudo lxc start container-name

List current snapshot for a given container

sudo lxc info container-name

Take a snapshot of a container

sudo lxc snapshot container-name [custom_snapshot_name; default=snap#]

Create new container from existing container snapshot

sudo lxc copy container-name snap_name new-container-name