In order to let you try the programs in this chapter immediately, we've set up a Docker image that has all the tools and libraries we'll need throughout the book, it is based on Ubuntu 19.04.
In order to set it up, follow these steps:
- Download and install the Docker Engine from www.docker.com.
- Pull the image from Docker Hub: docker pull kasperondocker/system_programming_cookbook:latest.
- The image should now be available. Type in the following command to view the image: docker images.
- You should have at least this image now: kasperondocker/system_programming_cookbook.
- Run the Docker image with an interactive shell with the help of the following command: docker run -it --cap-add sys_ptrace kasperondocker/system_programming_cookbook:latest /bin/bash.
- The shell on the running container is now available. Use root@39a5a8934370/# cd /BOOK/ to get all the programs developed, by chapters.
The --cap-add sys_ptrace argument is necessary to allow GDB in the Docker container to set breakpoints, which, by default, Docker does not allow.