Building and running a container on a local machine

So far, we have discussed Docker elements, along with an example of a Dockerfile that is used to containerize a web application, so we now have all the elements to run Docker.

The execution of Docker is performed by these different operations:

• Building a Docker image from a Dockerfile
• Instantiating a new container locally from this image
• Testing our locally containerized application

Let's take a deep dive into each operation.

Building a Docker image

To build a Docker image from our previously created Dockerfile that contains the following instructions:

FROM httpd:latest
COPY index.html /usr/local/apache2/htdocs/

We'll go to a Terminal to head into the directory...