How do you update a project in Docker?

Question

Docker

What is the project update algorithm if it is launched via Docker. For example, I have a Django web application and after a while I added an additional. functions and I need to upload it to the server and run it so that the database remains the same and new functions are added

Answer 1

As far as I have seen from my experience, the folder where the database stores its data is mounted to the container from the host machine, so even after rebuilding the image and creating a new container, the data will not be lost