Building an Apache image – a Dockerfile example

Now that we're armed with a good understanding of the Dockerfile constructs, in this recipe we will build a very simple Docker image that bundles the apache2 web server and also adds metadata to launch the apache2 application inside the container whenever a new container is created from this image.

Getting ready

Before we begin, the git repository https://github.com/docker-cookbook/apache2 has a Dockerfile to build an apache2 image, so clone the repository as shown in the following code:

    $ git clone https://github.com/docker-cookbook/apache2.git  

Now, go to the apache2 directory:

    $ cd apache2
    $ cat Dockerfile
    FROM alpine:3.6
    
    LABEL maintainer...