I have rebuilded some web challenges from Cyber Apocalypse 2021 CTF to Docker images, you can pull and run it. https://hub.docker.com/r/iamnewbie/cyberapocalypse2021-web
Also, credit to Hilb3r7. He stores all the Cyber Apocalypse 2021 CTF challenges. I'm just fix some errors and rebuild some challenges that need docker.