How to connect developer files so that when they change, an update occurs in the container?

Question

Docker

Hello everyone, just getting to know docker. I came across the following question, I can not find the answer:

So I started the container, forwarded the ports, the server is running. But if I need to change any of the files,
what do I need to rebuild the image and restart the container for any changes? In theory, it shouldn’t be like this

. I suspect that you need to somehow connect the file through the docker volume, which is the entry point to the site, but I can’t figure out how. More experienced, tell me how you do it? If possible, then in the docker-compose format

Here are my attempts to run a normal server on a node, everything works, but nothing happens when changing index.js

Answer 1

bind mount

There are two ways to make the data lifetime longer than the container lifetime. One way is to use bind mount technology. With this approach, you can mount, for example, a real-life folder to the container. Processes outside of Docker will also be able to work with data stored in such a folder.

https://m.habr.com/ru/company/ruvds/blog/441574/
Here is an example:
https://github.com/deviantony/docker-elk/blob/mast...

volumes:
      - type: bind
        source: ./elasticsearch/config/elasticsearch.yml
        target: /usr/share/elasticsearch/config/elasticsearch.yml
        read_only: true

Source path to a file or folder on the host
Target path in the container where to mount
Readonly for the container