Docker

To start learning you need to have environment, so lets create our lab where you can practice the code.
We gonna setup the lab on Redhat 8
So where you will have Redhat 8 then, well you can use virtualbox or AWS or Google Cloud or Azure, I leave upto you.
I am using Google Cloud, where I have spin up an Redhat Enterprise Edition 8 instance. We call this as our Host machine.

Lets set up the the docker.

Install Docker on Redhat 8

Officially you cannot setup Docker on Redhat 8, with below steps you can do it.

Step1: Create docker repository
sudo dnf config-manager --add-repo=https://download.docker.com/linux/centos/docker-ce.repo

Step2: Install stable docker version
yum install docker-ce --nobest

ce - represents Community Edition
--nobest - will install the latest stable version

Step3: Enable and validate your Docker
Once you install your docker, you want it to continuously run, for that enable the docker with below commands.

sudo systemctl enable --now docker

This will enable the docker permanently, if you restart your host, your docker will keep running.

After enabling, you can validate with below commands.

systemctl is-enabled docker
systemctl is-active docker

Now lets check docker version:
docker version

If you want to have more information about the docker installed, use
docker info

Thats it, you have your lab ready!!!!