The container

The Dockerfile contains two container definitions:

• a CI container which should contain everything necessary to build C++ applications and run their tests

• a DEV container which inherits the CI container and adds debugging tools like Valgrind, gdb, etc.

The compose file contains a basic setup to run the DEV container locallly. Since some IDEs depend on an SSH connection to a container, SSHD is started in the service defined by the compose file.

The user for the Docker container is dev. The compose file maps ~/git on the host machine to /home/dev/git in the container, so we can check out our project there.

Scripts

The scripts directory has a few helpers for easire building and running of the container and executing commands in it. Consider adding the scripts directory to our path for ease of use.

Building the container image

docker build (re)builds and tags the container image

Starting

docker up starts the container in the background

Stopping

docker down stops the runnung container

Entering the container/Running commands

• Via docker exec: docker run
• Via ssh: ssh dev@localhost -p 2222, password is dev

Miscellaneous

Package tools

• ccache: a tool that caches the output of compiler calls.
• cppcheck: a static analysis tool for C and C++ code. It checks for various types of errors and potential issues in source code, helping developers identify and fix bugs, potential memory leaks, and other problems early in the development process.
• curl: a command that perform various tasks, such as downloading files from remote servers, sending requests to web servers, and testing network connectivity.
• gcovr: a command-line tool that generates reports summarizing the code coverage provided by the GCC compiler's coverage testing tool.
• lsb-release: a package is a utility commonly found in Linux distributions that adhere to the Linux Standard Base (LSB).
• shellcheck: a static analysis tool for shell scripts. It helps to identify common issues and potential bugs in shell scripts, improving their reliability and maintainability.
• software-properties-common: a package provides a utility called add-apt-repository, which simplifies the management of APT software repositories on Debian-based Linux distributions like Ubuntu.
• valgrind: a powerful and widely-used tool for memory debugging, memory leak detection, and profiling. It's particularly valuable for C and C++ programmers to identify memory-related issues in their code.
• ...

Reference

• docker.docs

• arnemertz/docker4c