Docker¶
Docker is a container management system to allow reproducible, isolated builds and runtime environments across platforms. See https://docker.com for more documentation on Docker.
Installation¶
Docker Desktop can be installed at: https://www.docker.com/products/docker-desktop/. If you install Docker Desktop, you will not need to install the Docker Engine.
If you don’t want to or can’t use Docker Desktop, the Docker engine can be installed on unix-based systems by following the instructions for the specific OS at https://docs.docker.com/engine/install/.
About Docker¶
From Docker, “Docker is an open platform for developing, shipping, and running applications. Docker enables you to separate your applications from your infrastructure so you can deliver software quickly. With Docker, you can manage your infrastructure in the same ways you manage your applications.
“Docker provides the ability to package and run an application in a loosely isolated environment called a container. The isolation and security lets you run many containers simultaneously on a given host. Containers are lightweight and contain everything needed to run the application, so you don’t need to rely on what’s installed on the host. You can share containers while you work, and be sure that everyone you share with gets the same container that works in the same way.” (https://docs.docker.com/get-started/docker-overview/)
The eCTF uses Docker to create a reproducible build environment so that any team can compile your code in the exact same way, no matter their host platform.
Dockerfiles¶
From Docker: “A Dockerfile is a text-based document that’s used to create a container image. It provides instructions to the image builder on the commands to run, files to copy, startup command, and more.” (https://docs.docker.com/get-started/docker-concepts/building-images/writing-a-dockerfile/)
In the eCTF, you will have to write a Dockerfile that sets up the environment for the compiled parts of your design to be built in. The reference design provides a basic implementation that may be sufficient, but your design will likely need to extend the provided implementation.
