As a step further to my previous post, I have created a boilerplate for future WordPress projects. It can be accessed at https://github.com/andrewwippler/WordPress-Containerization-Boilerplate.
To quickly start a WordPress environment, simply run the following commands:
git clone firstname.lastname@example.org:andrewwippler/WordPress-Containerization-Boilerplate.git cd WordPress-Containerization-Boilerplate/ docker-compose up
and by visiting http://localhost:8080
More instructions are in the repo README.
Happy Plugin/Theme development.