Who can explain how to put OpenCart on docker-compose?

Question

Docker

Such a situation: I am a stupid and uneducated programmer, I decided to docker. But here's the problem: WP works, pure apache/nginx works, database links work, even basic volumes work.

But when trying to make an assembly for OpenCart, the following problems appeared:

• PHP extensions don't work including gd etc. Google helped, but only with basic ones, such as mysqli
  
• bitnami/opencart doesn't create volumes
  

In fact, these are all problems, the rest were solved by Google. But specifically, I didn’t understand how to install and edit opencart with docker. The maximum that I have achieved is to run opencart, but I could not edit the files inside.

Tell me how to install opencart with volumes, etc.