LXD containers

- [Instructor] Containers have become very popular recently…for software development and deployment.…A container is a protected space,…isolated in many ways from the system it runs on.…A container is kind of like a virtual machine,…but whatever runs inside of it…uses the host's kernel instead of its own.…Software running in the container has access…to isolated or virtualized resources,…like network and storage resources…and maintains its own namespace and process tree.…The container management software in Ubuntu Server…is called LXD, which we use to create…an environment for containers to run in.…

And also to manage those containers.…So let's take a quick look at how it works.…Before we enable LXD, I'm going to disable my DNS server.…The DNS server can conflict with what LXD needs to do,…and generally it's not a great idea to run…DNS and LXD on the same system.…Depending on your setup, you'll need to figure out…exactly what you need to do.…

All right, to configure LXD…I'll write sudo lxd init…and I'll press enter to accept some defaults here.…