I finally finished "Sustainable Dev Environments with Docker and Bash”! $19.99 will get you from zero to competent in Docker and Bash. I'm not kidding! Docker seems complex because their documentation is poor, and the terms/concepts that underlie it don't make logical sense. But there's not much there and this book will learn you.
Buy: https://sowl.co/bhKWwy
Learn More: https://devbox.computer