You’ve learned how to start a Docker container using
docker run and
docker-compose. In each instance, we used an existing image from
Docker Hub to create the container. We had a problem with the
WordPress image because the image itself did not support SSL.
Now, we need to learn how to build our own images using
We will build an image from a
Dockerfile. The file contains the
set of instructions or commands a developer would type into a shell
session to configure a server. However, the process is 100% automated.
Dockerfile contains all of the information necessary to
configure the image so that it can start as a container in a
You will learn how to extend an existing image to include additional functionality, such as adding SSL.