Follow the instruction given in the following link to install docker in your local machine.
Install Docker Engine on Ubuntu | Docker Docs
After successful installation, you should get the following window running the hello-world docker image.

*** For Docker desktop keep the docker application running on background and the rest of the command lines are identical as following***
***** Make sure to have significant storage on your drive and a good internet connection as well!! This docker images are pretty heavy/large and takes a while to build*****
****** One alternative would be using https://lightning.ai/. Open an account and it comes with build in docker. No hassle of installing docker there.***
Lightning is pretty fast, and it saves a lot of your time and space. Use the CPU for creating a docker. It won’t charge any credit.
Next step is to create an account on Docker Hub. Think of this as Github of docker where you are going to push all your docker images and pull them whenever seems necessary.
Follow the link to create an account on docker hub: https://hub.docker.com/
After creating an account on the hub follow the following steps to create a docker repository

