Building a custom nginx docker image using Dockerfile

Let us build a custom nginx image using our newly acquired Dockerfile knowledge.
Once we have built a customer nginx Docker image, we will then use it to start a Docker container and see our custom nginx image being put in use.

Dockerfile:
https://gist.github.com/ProProgrammer/4399168ea3da59536ea025394c4d2fa4

Custom index.html:
https://gist.github.com/ProProgrammer/72a87394affb0a70f54af6e6353e3c45