We laid a good foundation of the fundamentals of the Docker technology. In this section, we are going to focus on crafting an image with the HTTP service, launch the HTTP service inside the container using the crafted image, and then, demonstrate the connectivity to the HTTP service running inside the container.
In this section, we are going to craft a Docker image in order to install Apache2 on top of the Ubuntu 14.04 base image, and configure a Apache HTTP Server to run as an executable, using the ENTRYPOINT instruction.
In Chapter 3, Building Images, we illustrated the concept of the Dockerfile to craft an Apache2 image on top of the Ubuntu 14.04 base image. Here, in this example, we are going to extend this Dockerfile by setting the Apache log path and setting Apache2 as the default execution application, using the ENTRYPOINT instruction. The following is a detailed explanation of the content of Dockerfile.
We are going...